RU2348921C1 - Device of identification and control of products gyration - Google Patents

Abstract

FIELD: physics, measuring.

SUBSTANCE: invention concerns field of control and measuring technics and can be used in mechanical engineering for identification (recognition) of heated and unheated metal and nonmetallic products. The device includes the inductive sensing device executed in the form of an inductance coil, placed in a ring groove of an open end face of the ferrite core with the central hole, mounted coaxially with this hole capacitive a sensing device with the central hole and the infrared photodetector, devices forming a sensing device. At travel of the heated metal controllable product concerning a device sensing device there is consistently its interaction with electrical and electromagnetic fields accordingly capacitive both inductive sensing devices and fogging of an infrared photodetector by it. Thus on the first exit of the device there is a pulsing signal with level logic "1", bearing the information on identification heated metal product. On the second and third exits of the device thus there are voltages with "0" levels logic. In case of travel of the unheated metal product the signal with level logic "1", bearing the information on its identification, appears only on the second exit of the device. Thus on the first and third exits of the device there are voltages with levels logic "0". At travel of the unheated nonmetallic product the signal with level logic "1" appears only on the third exit of the device. On the first and second exits of the device thus there are voltages with levels logic "0".

EFFECT: identification of controllable products without contact to them.

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Description

The invention relates to the field of instrumentation and can be used in mechanical engineering for identification (recognition) of heated metal and unheated metal and non-metal products, as well as a non-contact sensor for monitoring the rotation of products taking into account their thermal state and type of material.

A device for identification (recognition) of products is known, containing a series-connected high-frequency generator of electrical oscillations with an inductive sensitive element made in the form of an inductor placed in the annular groove of an open cup of a ferrite core with a central hole, and a threshold element connected in series to its oscillating circuit circuit Included infrared photodetector, pulse shaper. as well as the first output terminal, which is the first output of the device, the second output terminal, which is the second output of the device (see USSR author's certificate No. 1185419 "Position and control sensor", class MKI ⁴ H01N 36/00, 1985). Such a device has a narrowed functionality, as it performs identification (recognition):

a) only unheated metal and non-metal products and does not allow identification along with unheated and heated metal products;

b) a limited range of controlled products, i.e. he identifies only two varieties of controlled products (unheated metal and non-metallic) according to the algorithm: each product is identified at one corresponding output from two outputs of the device, and does not allow identification of products having an expanded nomenclature by the number, type of material and thermal state of the controlled products. For example, such a device does not allow one of three types of controlled products to be identified (heated metal, unheated non-metallic, unheated non-metallic) at one corresponding output from the three outputs of the device.

c) the impossibility of recognizing non-metallic products transparent to the luminous flux of the emitter, since when they cross the luminous flux, the photodetector does not darken. that the luminous flux through the controlled products due to the relatively high transmittance passes to the photodetector and continues to maintain it in the illuminated state. Those. in this case, the identification (recognition) mode of metal and non-metal products is not ensured;

d) its implementation from two functional units, which, in turn, makes it impossible to use it in operating conditions at facilities having control zones with limited installation space.

Closest to the technical nature of the proposed solution is a product identification device containing an inductive sensitive element, made in the form of an inductor placed in the annular groove of an open cup of a ferrite core with a central hole, connected in series with a high-frequency generator of electrical vibrations, the inductive circuit of which includes an inductive element, and threshold device, infrared photodetector, shaper pulses, as well as the logical element And, the first terminal connected to the output of the logical element And and which is the first output of the device, the second terminal, which is the second output of the device (see USSR author's certificate No. 1610268, class MKI ⁵ G01B 21/00 "Inductively optical position and control sensor ", 1990). However, such a device has limited functionality, since:

- identifies only heated products (metallic and non-metallic) and does not allow identification (recognition) along with heated unheated products (metallic and non-metallic);

- Carries out identification of products from a limited range of products by the number of varieties of controlled products in accordance with the algorithm: identification of two varieties of controlled products of one product at one corresponding output from two outputs of the device - and does not allow identification of products from among the expanded range of products (for example, from a set of the three types of controlled products - heated metal, unheated metal, unheated non-metal,) according to the number of varieties of counter products to be polished and by the type of their material according to the algorithm: identification of each of the three varieties of controlled products at one corresponding output from the three outputs of the device.

The purpose of the invention is the expansion of the functionality of the device by enabling recognition along with heated metal products of unheated metal and non-metal products with the expansion of the range of controlled products.

This goal is achieved by the fact that in a known device containing an inductive sensitive element made in the form of an inductor placed in an annular groove of the open end of a ferrite core with a central hole, the oscillation generator is connected in series, the inductive sensor of which is included in the oscillating circuit, the first threshold element, series-connected infrared photodetector mounted on the closed end of the ferrite heart nickname coaxially with its central hole, the pulse shaper, as well as the first AND gate, the output of which is the first output of the device, the first trigger is inserted into it, the C-input of which is connected to the output of the first threshold element, the D-input - with a power supply source, direct output - with the first input of the first logical element And, the second trigger, the C-input of which is connected to the output of the pulse shaper, D-input - to the power supply source, direct output - to the second input of the first logical element And, capacitive a constituent element in the form of a conductive plate of any geometric shape with a central hole, the geometric shape of which repeats the geometric shape of the outer side surface of the ferrite core, a multivibrator connected in series with a capacitive sensing element included at its input, a detector, a second threshold element, as well as a second logical element And, the first input of which is connected to the direct output of the first trigger, the second input - with the inverse output of the second trigger, and its output is T device, the third logical element And, the first input of which is connected to the inverse output of the first trigger, the second input to the inverse output of the second trigger, and its output is the third output of the device, the third trigger, the C-input of which is connected to the output of the second threshold element, D-input - with a power supply source, direct output - with the third inputs of the first, second and third logical elements AND, a single-shot, the input of which is connected to the output of the second threshold element, the output - to the fourth inputs of the first, second of the first and third logical elements And, the initialization unit, the input of which is connected to the output of the one-shot, the output - with R-inputs of the first, second and third triggers, while the capacitive sensing element is installed coaxially with the central hole of the ferrite core and covering its internal end surface of the outer side surface of the ferrite core along its entire perimeter with a gap between these surfaces. The inductive sensitive element and the infrared photodetector form the sensitive element of the device, and the plane of the optical window of the infrared photodetector, the plane of the open end of the ferrite core and one of the planes of the capacitive sensitive element directed in one direction are parallel and form the sensitive surface of the device.

Figure 1 presents a block diagram of a device; figure 2 - diagram of the installation block in the initial state of the circuit device; figure 3 - diagram of the relative position of the inductive sensitive element, capacitive sensitive element, infrared photodetector and controlled product; figure 4 is a voltage diagram explaining the operation of the device when it is triggered from heated metal products in the identification mode of three types of products; figure 5 is a voltage diagram explaining the operation of the device when it is triggered from unheated metal products in the identification mode of three types of products; figure 6 is a voltage diagram explaining the operation of the device when it is triggered from unheated non-metallic products in the identification mode of three types of products.

The device contains (see Fig. 1) an inductive sensitive element 1 made in the form of an inductor 2 placed in an annular groove from the open end of a cup of a ferrite core 3 with a central hole, a high-frequency generator of electric oscillations 4, made, for example, according to the inductive circuit three points, and the outputs of the inductive sensor 1 are connected to the circuits of its oscillatory circuit, the first threshold element 5, made, for example, according to the Schmitt trigger circuit, the input of which is connected to the output high-frequency generator of electric oscillations 4, sequentially connected multivibrator 6 with a capacitive sensing element 7, made, for example, according to the scheme of a symmetrical rectangular oscillator based on an operational amplifier (see the book В. Shilo V.L. Linear integrated circuits in electronic equipment. - M. : Sov.radio, 1974 ″, p.175. Fig. 4.42, a), detector 8, made, for example, according to the scheme of a diode passive converter of amplitude values of alternating voltage to constant with series connection m rectifier diode with an output load in the form of a parallel RC circuit (see the book ″ Volgin L.I. Measuring converters of alternating voltage to direct. - M .: Owls. radio, 1977 ″, p.174, Fig. 4.9, b), the second threshold element 9, made, for example, according to the Schmitt trigger scheme, sequentially connected infrared photodetector 12, a pulse shaper 13, made, for example, according to the Schmitt trigger scheme, the input of which the output of the infrared photodetector 12 is connected, as well as the first, second and third synchronous triggers 14, 15 and 16, the C-inputs of which are connected respectively to the outputs of the first threshold element 5, pulse shaper 13, the second threshold element 9, D-inputs - with power supply voltage, R -inputs - with the output of the installation unit 11 in the initial state, the first logical element And 17, the first, second and third inputs of which are connected respectively to the direct outputs of the first, second and third triggers 14, 15 and 16, the second logical element And 19, the first input which is connected to the direct output of the first trigger 14, the second input to the inverse output of the second trigger 15. the third gate And 21, the first input of which is connected to the inverse output of the first trigger 14, the second input to the inverse output of the second trigger 15, one-shot 10, input to which is connected to the output of the second threshold element 9, the output to the fourth inputs of the logic elements 17, 19. 21, block 11 of the installation circuit of the proposed device in its original state at the time of supplying the supply voltage to it and at the end of each identification cycle of the controlled product, the input of which connected to the output of the one-shot 10, the output to the R-inputs of the triggers 14, 15 and 16, the first, second and third output terminals 18, 20 and 22, respectively connected to the outputs of the first, second and third logic elements And 17, 19 and 21 and which are ootvetstvenno first, second and third output devices.

The photodetector 12 is made, for example, according to a circuit consisting of a direct current amplifier based on an operational amplifier, an infrared photodiode included in the photodiode mode at the input of the operational amplifier (see the book М. Aksenenko M. D. et al. Microelectronic photodetectors / M.D. Aksenenko, M.L. Baranochnikov, O.V.Smolin. - M .: Energoatomizdat, 1984. - 208 p., Ill., P. 83, Fig. 4.11, B), and an open emitter transistor emitter an output whose input is connected to the output of a DC amplifier, and its open emitter output q is the output of an infrared photodetector.

The inductive sensing element 1 includes an inductor 2, a ferrite core 3, made in the form of a cup having open and closed ends. On the side of the open end of the cup of the ferrite core 3, a winding of the inductor 2 is installed. At the open end of the cup of the ferrite core 3, when a high-frequency signal is applied to the inductor 2 from the generator 4, a high-frequency electromagnetic field 23 is formed in the airspace. The magnetic flux of this field is closed through the air space between an inner annular protrusion of the cup mounted inside the Central hole of the inductor 2, and an outer annular protrusion of the cup, covering m its inner lateral surface of the outer side surface of the coil 2 on its perimeter. In this case, a high-frequency electromagnetic field does not arise in front of the closed cup end in air space, since its magnetic flux closes inside the core through a continuous layer of ferrite forming a closed cup end, i.e. the electromagnetic field is shielded by this layer from the side of the closed end of the ferrite core 3. Therefore, the photodetector 12 mounted near the closed end of the cup of the ferrite core 3 does not interact with the electromagnetic field of the inductive sensitive element 1 and, therefore, does not significantly attenuate the oscillator circuit of the generator 4 and does not reduce its quality factor, which, in turn, does not lead to disruption of the oscillations of the generator 4 and the violation of its functions ionization.

Capacitive sensing element 7, connected in the negative feedback circuit to the inverting input of the operational amplifier of the multivibrator 6, is one of the plates of the frequency-setting "open capacitor", the second lining of which is the electrical circuit of the common ground of the multivibrator 6 and the device as a whole, and serves as capacitive sensitive multivibrator element 6 (see Radio magazine No. 10, 2002, p. 38, fig. 1; p. 39, fig. 3). In this case, the capacitive sensor 7 is made in the form of a conductive plate with a central hole, the geometric shape of which coincides with the geometric shape of the outer side surface of the ferrite core 3 of the inductive sensor 1. Moreover, the capacitive sensor 7 is mounted coaxially with the central hole of the ferrite core 3 so that between its inner end surface and the outer side surface of the ferrite core 3 around its entire perimeter there is a guarantee Vanny gap. Moreover, the gap width is selected in such a way as to exclude interaction with the capacitive sensitive element 7 of the scattering flux of the electromagnetic field 23 of the inductor 2, which exists directly at the front edge of the outer side surface of the ferrite core 3 from the side of its open end. Therefore, the presence of such a gap eliminates the possibility of introducing undesirable additional attenuation into the oscillatory circuit of the high-frequency generator of electric oscillations 4. This, in turn, eliminates the possibility of reducing the quality factor of the oscillatory circuit of the generator 4 and violating its mode of generation of electric oscillations, leading to a malfunction of the device. In this case, the capacitive sensing element can be made of various geometric shapes, for example, triangular, square, rectangular, pentagonal or hexagonal and other shapes, i.e. any geometric shape that would provide the size of its area to form when it interacts with a controlled product of an electric capacitor with the necessary value of electric capacitance sufficient for the generation of electric vibrations of the multivibrator 6. The capacitive sensing element 7, covering its outer end surface with the outer side surface of the ferrite core 3 around its perimeter, inductive sensitive element 1 and infrared photo reception nick 12 form the sensor device and the plane of the opening end of the ferrite core 3, the plane of the optical window of the infrared photodetector 12 and one of the planes of the capacitive sensor element 7 in one direction and arranged in parallel to form a sensing surface of the device.

The installation of the photodetector 12 from the closed end of the ferrite core 3 and the central hole of the capacitive sensing element 7 coaxially with its central hole ensures that the controlled product 24 is opposite the central hole of the ferrite core 3 by the electric field 27 of the electromagnetic field 23 and the infrared radiation stream 28 emitted from the heated controlled product 24 and passed through these holes on the optical window of the photodetector 12, and at the same time grasping electromagnetic field 23 of the same infrared flux, because within the limits of the action of these fields and the infrared flux, their cross section in a plane parallel to the plane of the open end of the cup of the ferrite core 3 consists of the following three figures arranged coaxially with each other: the first figure corresponds to cross-section of the electric field 27 of the capacitive sensing element 7 and repeats its geometric shape in the form of a conductive plate with a Central hole, the second figure located inside the first Igura, corresponds to the cross section of the electromagnetic field 23 of the inductive sensor 1 and has the shape of a ring, the third figure, displaying the cross section of the infrared radiation stream 28 from the heated controlled product 24, is located inside the second figure and has a geometric shape that repeats the geometric shape of the central hole of the ferrite core 3. So , for example, with the constructive implementation of the capacitive sensor 7 in the form of a ring, the inductive sensor is based on a ferrite cup with a cent with a circular round hole and with an open end, the totality of the figures making up the obtained section will look as follows: the first figure in the form of a ring, reflecting the shape of the electric field 27, inside which the second figure is mounted coaxially with the first in the form of a smaller ring, reflecting the electromagnetic field 23, and in the center of these rings is located coaxially with these rings the third figure in the form of a circle, showing the flow of infrared radiation of the controlled product 24, falling on the optical window successor 12.

Such a mutual arrangement in the space of the infrared photodetector 12, the capacitive sensor 7, the inductive sensor 1 and the monitored product 24 (see FIG. 3) when it passes in the direction of the arrow 25 (26) relative to the sensor element parallel to its sensitive surface within the limits of action electric field 27, electromagnetic field 23 and within the sensitivity distance of the photodetector 12 always provides a consistent interaction of the controlled product 24 s an electric field 27, with an electromagnetic field 23 and with an optical window of the photodetector 12. This, in turn, provides:

1) sequentially, first, the interaction with the electric field 27, then the intersection of the electromagnetic field 23, while remaining in the zone of action of the electric field 27, and then, remaining in the zones of action of the electric and electromagnetic fields 27 and 23, the illumination of the photodetector 12 with a heated metal or non-metallic controlled product 24 with its infrared radiation 28, further, continuing to remain in the zones of action of the electric and electromagnetic fields 27 and 23, going beyond the optical window of the photodetector 12 and its dimming then, staying in the zone of action of the electric field 27 and leaving the photodetector in a darkened state, leaving the zone of action of the electromagnetic field 23, and, finally, on the last segment of its movement, leaving the zone of action of the electric field 27, and, therefore, the output of the controlled product 24 from the sensitive surface area of the device.

Thus, when a heated controlled product 24 is illuminated by a photodetector 12, a voltage pulse is generated at the output of the pulse shaper 13 with a logic level “1” of duration equal to the residence time of the heated metallic or heated non-metallic controlled product in the zone of the device’s sensitive surface, starting from the moment the photodetector 12 is illuminated and until it darkens;

2) when a controlled heated or unheated metal article 24 intersects an electromagnetic field 23, an output of a first threshold element 5 generates a voltage pulse with a logic level “1” of duration equal to the length of time the monitored product is in the electromagnetic field 23 of the inductive sensitive element 1;

3) when the electric field 27 intersects with a controlled heated or unheated metal product and an unheated non-metal product 24, a voltage pulse is generated at the output of the second threshold element 9 with a logic level “1” of duration equal to the length of time the monitored product is in the electric field 27 of the capacitive sensing element 7;

4) receiving at the output of the second threshold element 9 of the pulse with a duration always greater than the duration of each pulse at the outputs of the first threshold element 5 and the pulse shaper 13;

5) receiving at the output of the first threshold element 5 a voltage pulse with a logic level “1” of duration always greater than the pulse duration at the output of the pulse shaper 13;

6) arrangement on the time axis of the generated pulses in such a way that the output pulse of the threshold element 9 of greater duration always "covers" the output pulses of shorter duration of the first threshold element 5 and the pulse shaper 13 and at the same time the output pulse of the first threshold element 5, the duration of which more than the duration of the output pulse of the shaper 13, always "covered" the output pulse of the latter.

Such a mutual arrangement of the infrared photodetector, inductive and capacitive sensitive elements and their interaction in the sequence described above with the controlled product, as well as the corresponding processing of the output signals by the proposed device circuit, allow the device to operate in the identification mode of three types of products from the number of heated metal and unheated metal and non-metallic products and expand the range of controlled products to three, i.e. recognize controlled products based on their thermal state and type of material with their expanded nomenclature according to the algorithm: identification of each of the three varieties of controlled products at one corresponding output from the three outputs of the device.

, являющийся входом одновибратора, подаются запускающие импульсы, на входы

и В при этом подаются напряжения с уровнями логической "1", а прямой выход триггера является выходом одновибратора 10 (см. книгу ″Шило В.Л. Популярные цифровые микросхемы: Справочник. - М.: Радио и связь, 1987. - 352 с.: ил, - (Массовая радиобиблиотека. Вып.1111)″, с.188, рис.1.136 а, б).The one-shot 10 is made, for example, according to the scheme of a standby multivibrator based on a trigger and a timing RC circuit in the form of a resistor and a capacitor connected in series, the resistor R _{τ of} which is connected to the power source, and their connection point is connected to the trigger R input of the input

, which is the input of a single-shot, triggering pulses are applied to the inputs

and B, voltages with logical “1” levels are applied, and the direct output of the trigger is the output of a single-shot 10 (see the book ″ Shilo V.L. Popular Digital Circuits: Reference Book. - M.: Radio and Communications, 1987. - 352 p. .: silt, - (Massive radio library. Issue 1111) ″, p.188, fig. 1.136 a, b).

Block 11 installation in the initial state is made, for example, according to the scheme shown in figure 2. Its circuit includes a logic element 2 OR NOT 29, the output of which is the output of the installation unit 11 in the initial state, the capacitor 30 and the resistor 31 connected in series, forming a timing RC circuit connected to the supply voltage + U, to form a pulse of positive polarity at the moment supply voltage to the circuit of the proposed device and supply it from the resistor 31 to one of the inputs of the logic element 2 OR NOT 29, a single vibrator 32, made, for example, according to a circuit identical to that of a single vibrator 10 and described th above, based on the trigger and the forming RC-circuit whose output is connected to the second input of NAND gate NOR 2 or 29 and its input is the input setting unit 11 to the initial state.

The device operates as follows.

и

с уровнями логической "1". При этом инфракрасный фотоприемник 12 находится в затемненном состоянии, и на выходе формирователя 13 устанавливается напряжение U3 с уровнем логического "0", которое подается на С-вход триггера 15.When applying the supply voltage at the time the controlled product 24 is outside the zone of the sensitive surface of the device (see FIG. 3), the capacitor 30 of the initial unit 11 is charged through the resistor 31 (see FIG. 2). As a result, a short pulse is formed on the resistor 31 with a logic level of "1", which is fed to the first input of the logic element 2 OR NOT 29, inverted by it and passed to its output in the form of a voltage pulse U8 (see figure 4, figure 5, 6) with a logic level of "0", since at the second input of a logic element 2OR-NOT 29 is installed from the output of a single-shot 32 allowing invert voltage with a level of logical "0". As a result, triggers 14. 15 and 16 are set to the initial state at the R-inputs, in which the voltage U4, U5 and U6 with logic levels “0” are set respectively at their direct outputs, and at the inverted outputs of triggers 15 and 16, respectively

and

with logical levels of "1". In this case, the infrared photodetector 12 is in a darkened state, and the voltage U3 is set at the output of the former 13 with a logic level of “0”, which is supplied to the C-input of the trigger 15.

At the same time, at the time of supplying the supply voltage, the generator 4 switches to the generation mode of electric high-frequency oscillations, the constant current component of which at its output creates a voltage drop exceeding the input threshold voltage value of the trigger of the threshold element 5. In this case, the latter switches to such a stable state, when which is set at its output voltage U2 (see figure 4, figure 5, figure 6) with a logic level of "0", which is fed to the C-input of the trigger 14. After applying the power voltage multivibrator Navigate in the inhibited state in which its output, the input and output of the detector 8, the inlet member 9 set threshold voltage levels of logic "0". Under the action of this voltage, the threshold element 9 is set in such a stable state that at its output, at the input of the one-shot 10 and at the C-input of the trigger 16, the voltage U1 is set with a logic level of "0". Then, at the output of the single-vibrator 10, at the input of the initial installation block 11, the voltage U7 with the logic level “0” is set at the fourth inputs of the logic elements AND 17,19, 21. Since at all the inputs of the logic element 17, at the first, third, fourth inputs of the logic element 19, at the third and fourth inputs of the logic element 21 voltage is supplied with levels of logic "0", then at their outputs and, therefore, at terminals 18, 20 and 22, the voltages U9, U10, and U11 are set, respectively, and with logic levels “0”.

Thus, after applying the supply voltage, the device is restored to its initial state, in which the controlled product 24 is located outside the sensitive surface area of the device, and at the output terminals 18. 20 and 22 are set, respectively, voltages U9, U10 and U11 and with logical levels “0” , and the device is ready for the first cycle of identification of heated or unheated products in the identification mode of three types of products.

Consider the operation of the proposed device in the identification mode of three types of controlled products - heated metal, unheated metal and unheated non-metallic products, in which the controlled product 24 (see figure 3) moves parallel to the sensitive surface of the device within the zones of electromagnetic field 23, electric field 27 and within the sensitivity distance of the infrared photodetector 12 in one of the directions along arrow 25 or 26.

When moving in the direction of arrow 25 (26) into the zone of the sensitive surface of the device, for example, a heated metal product 24, it enters the zone of action of the electric field 27 of the capacitive sensing element 7 and forms an electric capacitor with it. The value of the electric capacitance of the capacitor thus formed increases to a level at which the multivibrator 6 is excited and transitions to the mode of generation of electrical vibrations. The amplitude of the output pulses of the multivibrator 6 is converted by the detector 8 into a constant voltage with a logic level of "1", which exceeds the input threshold voltage of the trigger element threshold 9. In this case, the latter switches to another stable state, at which voltage U1 with a logic level is set at its output 1 "(see Fig. 4), which is fed to the input of the one-shot 10 and to the C-input of the trigger 16. In this case, due to the positive voltage drop U1, the start of the one-shot 10 does not occur, since it starts only to the falling edge of the input voltage. But according to this positive difference, the trigger 16 switches to another state, in which a direct voltage of U6 with a logic level “1” is set at its direct output, which is supplied to the third inputs of the logic elements 17, 19, 21. However, the logic level “1” of the voltage U6 the outputs of the logic elements 17, 19, 21 and, respectively, to the terminals 18, 20 and 22 does not pass, since the fourth inputs of the logic elements 17, 19 and 21 are supplied with voltage U7 with the logic level “0”.

Then, the moving controlled product 24, remaining in the zone of action of the electric field 27, enters the zone of action of the electromagnetic field 23 of the inductive sensor element 1. In this case, the generation of the generator 4 is disrupted due to the significant attenuation in its oscillating circuit by the controlled product 24. As a result, the component sharply decreases DC voltage at the generator output and when its value is lower than the input threshold voltage value of the trigger of the threshold element 5, the last It switches to another stable state, at which voltage U2 is set at its output (see Fig. 4) with a logic level of “1”, which is supplied to the C-input of trigger 14. By a positive voltage drop U2, a voltage is established at the direct output of trigger 14 U4 with logic level “1”, which is supplied to the first inputs of logic elements 17 and 19, and at its inverse output, voltage U4 with logic level “0”, which is fed to the first input of logic element 22. But the levels of logic “1” are voltage U4 through gate 17 19, respectively, do not pass to the output terminals 18 and 20, since the voltages U5, U6, U7 and U6, U7 with logic levels “0” are respectively applied to the second, third and fourth inputs of the logic element 17 and to the third and fourth inputs of the logic element 19 .

с уровнем логического "0", которое подается на вторые входы логических элементов 19 и 21. Однако уровень логической "1" с прямого выхода триггера 15 на выходную клемму 18 устройства через второй вход логического элемента 17 не проходит, так как на его четвертом входе установлено напряжение U7 с выхода одновибратора 10 с запрещающим уровнем логического "0".Next, the moving controlled product 24 in the selected direction, remaining in the zones of electromagnetic and electric fields 23, 27, illuminates with its infrared radiation 28 the photodetector 12, as a result, a voltage with a logic level “1” is established at its output, which is input to the shaper 13, which switches to such a stable state in which at its output, at the C-input of the trigger 15, the voltage U3 is set, with a logical level of "1" (see figure 4). In this case, by a positive voltage drop U3, the trigger 15 is switched to another state, in which a direct voltage of U5 is set with a logic level of “1”, which is supplied to the second input of the logic element 17. At this moment, the voltage is set to the inverse output of the trigger 15

with the logic level “0”, which is fed to the second inputs of the logic elements 19 and 21. However, the logic level “1” from the direct output of the trigger 15 to the output terminal 18 of the device does not pass through the second input of the logic element 17, since it is installed on its fourth input voltage U7 from the output of a single-shot 10 with a inhibitory level of logical "0".

With further movement of the controlled product 24 in the selected direction, it, remaining in the zones of electromagnetic and electric fields 23, 27, goes beyond the optical window of the photodetector 12. At the same time, it is darkened, i.e. is set to the initial state, as a result, the driver 13 also switches to the initial state, in which the voltage U3 with the logical level “0” is set at its output and at the C-input of the trigger 15. After that, the described states of the device circuit and voltage diagrams in Fig. 4 at its other points in the circuit, which had been established before the photodetector 12 was darkened, did not change, since the trigger 15 was not switched by negative output voltage U3 at its C-input, and to the fourth the inputs of the logic elements 17, 19 and 21 continues to be supplied from the output of the one-shot 10 voltage U7 with a logic level of "0".

Next, the controlled product 24, leaving the photodetector 12 in a darkened state and being in the zone of action of the electric field 27, leaves the zone of action of the electromagnetic field 23. In this case, the generator 4 again switches to the oscillation generation mode, i.e. in the initial state, as a result, the threshold element 5 also switches to the initial state, in which at its output and at the C-input of the trigger 14 the voltage U2 is set with a logic level of "0". After that, the described states of the device circuit and voltage diagrams in Fig. 4 at its other circuit points, which had been established before the controlled product 24 left the electromagnetic field 23, did not change, since switching over the C-input of trigger 14 due to the negative voltage drop U2 did not occurs, and at its direct output voltage U4 with a logic level “1” continues to be present, and voltage U7 with a logic level “0” is still supplied to the fourth inputs of logic elements 17, 19 and 21.

и

с уровнями логического "0". По отрицательному перепаду выходного напряжения U7 одновибратора 10 происходит формирование на выходе блока 11 установки в исходное состояние короткого импульса напряжения U8 с уровнем логического "0", устанавливающего по R-входам триггеры 14, 15 и 16 в исходное состояние, при котором на их прямых выходах устанавливаются соответственно напряжения U4, U5, U6 с уровнями логического "0", а на выходах логических элементов 17, 19, 21 и на выходных клеммах 18, 20, 22 - соответственно напряжения U9, U10, U11 с уровнями логического "0".And in the last segment of its movement, the controlled product 24 leaves the zone of action of the electric field 27. In this case, the multivibrator 6 goes into a locked state, i.e. in the initial state, in which at its output, input and output of the detector 8 is set voltage with a logical level of "0". As a result, a voltage with a logic level of “0” is applied to the input of the threshold element 9, under the action of which it switches to another stable state, i.e. to the initial state, and at its output, the voltage U1 is set with a logic level of "0". From the output of the threshold element 9, the voltage U1 with a logic level of "0" is supplied to the C-input of the trigger 16 and to the input of the one-shot 10. However, due to the negative voltage drop U1, the trigger 16 does not switch to another state, and the voltage U6 continues to be present at its direct output with a logical level of "1". In this case, the negative voltage drop U1 triggers a single-shot 10 and the formation of a voltage pulse U7 with a logical level of "1". After that, the voltage U7 with the logic level "1" is supplied to the fourth inputs of the logic elements 17, 19, 21, and the voltage U4, U5, U6 and U7 with the levels of the logic "1" are set at all four inputs of the logic element 17. As a result, the voltage U9 with the logic level “1” is set at the output of the logic element 17 and at terminal 18 during the action of the voltage pulse U7 with the logic level “1” from the output of the one-shot 10, and at the outputs of the logic elements 19 and 21 and, therefore, respectively, voltages U10 and U11 with levels of logic “0” continue to be present at terminals 20 and 22, since voltages are set at the second input of logic 19 and at the first input of logic 21

and

with logical levels of "0". According to the negative drop in the output voltage U7 of the one-shot 10, a short voltage pulse U8 is formed at the output of the installation unit 11 to the initial state with a logic level of "0", which sets the triggers 14, 15 and 16 to the initial state at the R inputs, at which their direct outputs voltages U4, U5, U6 with logic levels of "0" are set respectively, and at the outputs of logic elements 17, 19, 21 and at output terminals 18, 20, 22, voltages U9, U10, U11 with logic levels of "0", respectively.

Consequently, when a heated metal product passes through the relatively sensitive surface of the device, an impulse information signal of voltage U9 with a logic level “1” about its identification is processed at the output terminal 18 of the device, and a voltage pulse U7 with a logic level “1”, which through logic elements 19 and 21, respectively, do not pass to the output terminals 20 and 22, and voltages U10 and U11 with logical "0" levels, respectively, are present on them.

When moving in the direction of the arrow 25 (26) into the area of the sensitive surface of the device of an unheated metal product 24, it enters the zone of action of the electric field 27 of the capacitive sensing element 7 and forms an electric capacitor with it. The value of the electric capacitance of the capacitor formed in this way increases to a level at which the multivibrator 6 is excited and transitions to the mode of generating electrical vibrations. The amplitude of the output pulses of the multivibrator 6 is converted by the detector 8 into a constant voltage with a logic level of "1", which exceeds the input threshold voltage of the trigger element threshold 9. In this case, the latter switches to another stable state, at which voltage U1 with a logic level is set at its output 1 "(see Fig. 5), which is fed to the input of the one-shot 10 and to the C-input of the trigger 16. In this case, due to a positive voltage drop U1, the start of the one-shot 10 does not occur, since it starts only to the falling edge of the input voltage. But according to this positive difference, the trigger 16 switches to another state, in which a direct voltage of U6 with a logic level “1” is set at its direct output, which is supplied to the third inputs of the logic elements 17, 19, 21. However, the logic level “1” of the voltage U6 the outputs of the logic elements 17, 19, 21 and, respectively, to the terminals 18, 20 and 22 does not pass, since the fourth inputs of the logic elements 17, 19 and 21 are supplied with voltage U7 with the logic level “0”.

с уровнем логического "0", которое подается на первый вход логического элемента 22. Но уровни логической "1" напряжения U4 через логические элементы 17 и 19 соответственно на выходные клеммы 18 и 20 не проходят, так как на второй и четвертый входы логического элемента 17 и на четвертый вход логического элемента 19 поданы соответственно напряжения U5, U7 и U7 с уровнями логического "0".Then, the moving controlled product 24, remaining in the zone of action of the electric field 27, enters the zone of action of the electromagnetic field 23 of the inductive sensor element 1. In this case, the generation of the generator 4 is disrupted due to the significant attenuation in its oscillating circuit by the controlled product 24. As a result, the component sharply decreases DC voltage at the generator output and when its value is lower than the input threshold voltage value of the trigger of the threshold element 5, the last It switches to another stable state, at which voltage U2 is set at its output (see Fig. 5) with a logic level of “1”, which is supplied to the C-input of trigger 14. A voltage is set at a positive voltage drop U2 at the direct output of trigger 14 U4 with logic level "1", which is fed to the first inputs of logic elements 17 and 19, and at its inverse output is voltage

with the logic level “0”, which is supplied to the first input of the logic element 22. But the levels of the logical “1” voltage U4 through the logic elements 17 and 19, respectively, to the output terminals 18 and 20 do not pass, since the second and fourth inputs of the logic element 17 and to the fourth input of the logic element 19, voltages U5, U7, and U7 with logic levels “0” are applied, respectively.

Next, the moving controlled product 24 in the selected direction, remaining in the zones of electromagnetic and electric fields 23, 27, passes through the optical window of the photodetector 12, but its illumination does not occur due to the absence of infrared radiation from the controlled product 24, as a result of its output and output the shaper 13 of the formation of the voltage pulse U3 with a logical level of "1" does not occur (see figure 5). In this case, the trigger 15 of the formation of a voltage pulse U5 with a logic level of “1” does not occur, and it will remain in the initial state during the entire identification cycle of an unheated metal product, at which voltage U5 will be constantly set at its output and at the second input of the logic element 17 with a logic level of "0". As a result, the voltage U9 with the logic level “0” corresponding to its initial value will also be present at the output of the logic element 17 and at the terminal 18 of the device during the entire current identification cycle. Next, the controlled product 24, leaving the photodetector 12 in a darkened state and being in the zone of action of the electric field 27, leaves the zone of action of the electromagnetic field 23. In this case, the generator 4 again switches to the oscillation generation mode, i.e. in the initial state, as a result, the threshold element 5 also switches to the initial state, in which at its output and at the C-input of the trigger 14 the voltage U2 is set with a logic level of "0". After that, the described states of the device circuit and voltage diagrams in Fig. 5 at its other points in the circuit, which were established before the controlled product 24 left the electromagnetic field 23, did not change, since switching over the C-input of trigger 14 with respect to the negative voltage drop U2 does not occur and voltage U4 with a logic level “1” continues to be present at its direct output, and voltage U7 with a logic level “0” is still supplied to the fourth inputs of logic elements 17, 19, and 21.

, U6 и U7 с уровнями логической "1". В результате на выходе логического элемента 19 и на клемме 20 устанавливается напряжение U10 с уровнем логической "1" в течение действия импульса напряжения U7 с уровнем логической "1" с выхода одновибратора 10, а на выходах логических элементов 18 и 21 и, следовательно, на клеммах 18 и 22 продолжают присутствовать соответственно напряжения U9 и U11 с уровнями логического "0", так как на втором входе логического элемента 17 и на первом входе логического элемента 21 установлены соответственно напряжения U5 и

с уровнями логического "0". По отрицательному перепаду выходного напряжения U7 одновибратора 10 происходит формирование на выходе блока 11 установки в исходное состояние короткого импульса напряжения U8 с уровнем логического "0", устанавливающего по R-входам триггеры 14 и 16 в исходное состояние, при котором на их прямых выходах устанавливаются соответственно напряжения U4 и U6 с уровнями логического "0", а на выходах логических элементов 17, 21 и на выходных клеммах 18, 22 - соответственно напряжения U9, U11 с уровнями логического "0".And in the last segment of its movement, the controlled product 24 leaves the zone of action of the electric field 27. In this case, the multivibrator 6 goes into a locked state, i.e. in the initial state, in which at its output, input and output of the detector 8 is set voltage with a logical level of "0". As a result, a voltage with a logic level of “0” is applied to the input of the threshold element 9, under the action of which it switches to another stable state, i.e. to the initial state, and at its output, the voltage U1 is set with a logic level of "0". From the output of the threshold element 9, the voltage U1 with a logic level of "0" is supplied to the C-input of the trigger 16 and to the input of the one-shot 10. However, due to the negative voltage drop U1, the trigger 16 does not switch to another state, and the voltage U6 continues to be present at its direct output with a logical level of "1". In this case, the negative voltage drop U1 triggers a single-shot 10 and the formation of a voltage pulse U7 with a logical level of "1". After that, the voltage U7 with the logic level "1" is supplied to the fourth inputs of the logic elements 17, 19, 21, and the voltage U4 is set at all four inputs of the logic element 19,

, U6 and U7 with logical levels of "1". As a result, the voltage U10 with the logic level “1” is set at the output of the logic element 19 and at terminal 20 during the action of the voltage pulse U7 with the logic level “1” from the output of the one-shot 10, and at the outputs of the logic elements 18 and 21 and, therefore, terminals 18 and 22 continue to be present, respectively, voltages U9 and U11 with logic levels “0”, since the voltages U5 and respectively are set at the second input of logic element 17 and at the first input of logic element 21

with logical levels of "0". According to the negative difference in the output voltage U7 of the one-shot 10, a short voltage pulse U8 is formed at the output of the installation unit 11 to the initial state with a logic level of "0", which sets the triggers 14 and 16 to the initial state on the R inputs, at which their direct outputs are set respectively voltages U4 and U6 with logic levels “0”, and at the outputs of logic elements 17, 21 and at output terminals 18, 22, respectively, voltages U9, U11 with levels of logic “0”.

Therefore, when a relatively unheated metal product passes through the relatively sensitive surface of the device, a pulse information signal of voltage U10 with a logic level “1” about its identification is generated at the output terminal 20 of the device, and a voltage pulse U7 with a logic level “1”, which through logic elements 17 and 21, respectively, do not pass to the output terminals 18 and 22, and voltages U9 and U11 with logical "0" levels are present respectively.

In the case of moving in the direction of arrow 25 (26) into the area of the sensitive surface of the device of an unheated non-metallic product 24, it enters the zone of action of the electric field 27 of the capacitive sensing element 7 and forms an electric capacitor with it. The value of the electric capacitance of the capacitor formed in this way increases to a level at which the multivibrator 6 is excited and transitions to the mode of generating electrical vibrations. The amplitude of the output pulses of the multivibrator 6 is converted by the detector 8 into a constant voltage with a logic level of "1", which exceeds the input threshold voltage of the trigger element threshold 9. In this case, the latter switches to another stable state, at which voltage U1 with a logic level is set at its output 1 "(see Fig. 6), which is fed to the input of the one-shot 10 and to the C-input of the trigger 16. In this case, due to the positive voltage drop U1, the start of the one-shot 10 does not occur, since it starts only to the falling edge of the input voltage. But according to this positive difference, the trigger 16 switches to another state, in which a direct voltage of U6 with a logic level “1” is set at its direct output, which is supplied to the third inputs of the logic elements 17, 19, 21. However, the logic level “1” of the voltage U6 the outputs of the logic elements 17, 19, 21 and, respectively, to the terminals 18, 20 and 22 does not pass, since the fourth inputs of the logic elements 17, 19 and 21 are supplied with voltage U7 with a logic level of "0".

Then the moving controlled product 24, remaining in the zone of action of the electric field 27, enters the zone of action of the electromagnetic field 23 of the inductive sensor 1. In this case, the generation of the generator 4 is disrupted due to the absence of significant attenuation in its oscillating circuit by the controlled product 24. As a result of the formation of the generator 4 and the threshold element 5 of the voltage pulse U2 (see Fig.6) with a logical level of "1" does not occur. In this case, the trigger 14 of the formation of a voltage pulse U4 with a logic level of “1” does not occur, and it will remain in the initial state during the entire identification cycle of an unheated metal product, at which it will be constantly installed at its output and at the first inputs of logic elements 17 and 19 voltage U4 with a logic level of "0". As a result, the outputs of the logic elements 17, 19 and the output terminals 18, 20 of the device will also be present during the entire current identification cycle, respectively, voltages U9, U10 with logic levels “0” corresponding to their initial values.

Next, the moving controlled product 24 in the selected direction, remaining in the zones of electromagnetic and electric fields 23, 27, passes through the optical window of the photodetector 12, but its illumination does not occur due to the absence of infrared radiation from the controlled product 24, as a result of its output and output the shaper 13 of the formation of the voltage pulse U3 with a logical level of "1" does not occur (see Fig.6). In this case, the trigger 15 of the formation of a voltage pulse U5 with a logic level of “1” does not occur, and it will remain during the entire identification cycle of an unheated non-metallic product in the initial state, at which voltage U5 will be constantly set at its output and at the second input of the logic element 17 with a logic level of "0". As a result, the voltage U9 with the logic level “0” corresponding to its initial value will also be present at the output of the logic element 17 and at the terminal 18 of the device during the entire current identification cycle.

Next, the controlled product 24, leaving the photodetector 12 in a darkened state and being in the zone of action of the electric field 27, leaves the zone of action of the electromagnetic field 23. At the same time, the generator 4, trigger 14, and threshold element 5 continue to be in their initial states. After that, the described states of the device circuit and voltage diagrams in Fig. 6 at its other circuit points, which had been established before the controlled product 24 left the electromagnetic field 23, did not change, since switching along the C-input of trigger 14 did not occur on its direct the output continues to be present voltage U4 with a logic level of "0", and the fourth inputs of the logic elements 17, 19 and 21 are still supplied with the output of a single-shot 10 voltage U7 with a logic level of "0".

,

, U6 и U7 с уровнями логической "1". В результате на выходе логического элемента 21 и на клемме 22 устанавливается напряжение U11 с уровнем логической "1" в течение действия импульса напряжения U7 с уровнем логической "1" с выхода одновибратора 10, а на выходах логических элементов 17 и 19 и, следовательно, на клеммах 18 и 20 продолжают присутствовать соответственно напряжения U9 и U10 с уровнями логического "0", так как на первом, на втором входах логического элемента 17 и на первом входе логического элемента 19 установлены соответственно напряжения U4, U5 и U4 с уровнями логического "0". По отрицательному перепаду выходного напряжения U7 одновибратора 10 происходит формирование на выходе блока 11 установки в исходное состояние короткого импульса напряжения U8 с уровнем логического "0", устанавливающего по R-входу триггер 16 в исходное состояние, при котором на его прямом выходе устанавливается напряжение U6 с уровнем логического "0", а на выходе логического элемента 21 и на выходной клемме 22 - напряжение U11 с уровнем логического "0".And in the last segment of its movement, the controlled product 24 leaves the zone of action of the electric field 27. In this case, the multivibrator 6 goes into a locked state, i.e. in the initial state, in which at its output, input and output of the detector 8 is set voltage with a logical level of "0". As a result, a voltage with a logic level of “0” is applied to the input of the threshold element 9, under the action of which it switches to another stable state, i.e. to the initial state, and at its output, the voltage U1 is set with a logic level of "0". From the output of the threshold element 9, the voltage U1 with a logic level of "0" is supplied to the C-input of the trigger 16 and to the input of the one-shot 10. However, due to the negative voltage drop U1, the trigger 16 does not switch to another state, and the voltage U6 continues to be present at its direct output with a logical level of "1". In this case, the negative voltage drop U1 triggers a single-shot 10 and the formation of a voltage pulse U7 with a logical level of "1". After that, the voltage U7 with the logic level "1" is supplied to the fourth inputs of the logic elements 17, 19, 21, and all the inputs of the logic element 21 are set voltage

,

, U6 and U7 with logical levels of "1". As a result, the voltage U11 with the logic level “1” is set at the output of the logic element 21 and at the terminal 22 during the action of the voltage pulse U7 with the logic level “1” from the output of the one-shot 10, and at the outputs of the logic elements 17 and 19 and, therefore, respectively, voltages U9 and U10 with levels of logic “0” continue to be present at terminals 18 and 20, since voltages U4, U5 and U4 with levels of logic “0” are set respectively at the first, second inputs of logic element 17 and at the first input of logic element 19 . According to the negative difference in the output voltage U7 of the one-shot 10, a short voltage pulse U8 with the logical level “0” is formed at the output of the installation unit 11 of the initial state, which sets the trigger 16 to the initial state at the R-input, at which voltage U6 s is established at its direct output logic level “0”, and at the output of logic element 21 and output terminal 22, voltage U11 with logic level “0”.

Therefore, when a relatively unheated non-metallic product passes through the relatively sensitive surface of the device, a pulse information signal of voltage U11 with a logic level “1” about its identification is generated at the output terminal 22 of the device, and a voltage pulse U7 with a logic level of “1”, which through logic elements 17 and 19, respectively, do not pass to the output terminals 18 and 20, and voltages U9 and U10 with logical “0” levels are present respectively.

Therefore, in the considered operation mode of the device, the presence of a pulsed information signal at its output terminal 18 unambiguously corresponds to the passage of a heated metal product relative to the sensitive surface of the device, the presence of a pulsed information signal at the output terminal 20 of the device corresponds to the passage of an unheated metal product, and the presence of a pulsed information signal at the output terminal 22 devices - the passage of unheated non-metallic products, which ensures the process identification (recognition) of three types of products from the number of heated metal, unheated metal and unheated non-metal products, i.e. the process of product identification is provided taking into account their thermal state and type of material with an expanded range of controlled products.

The proposed device also provides three modes of product identification with a narrowed range of controlled products to two units:

1) the identification mode of heated and unheated metal products;

2) the identification mode of heated metallic and unheated non-metallic products;

3) the identification mode of unheated metal and non-metal products.

In the identification mode of heated and unheated metal products, the output terminals 18 and 20 of the device are used, and its output terminal 22 is not activated. With the passage of the relatively sensitive surface of the device of the heated heated metal product at the output terminal 18, a pulse information signal U9 with a logic level of "1" is carried, carrying information about its identification. At the same time, a voltage with a logic level of “0” is present at the output terminal 20, and the identification cycle of a heated metal product is described by the diagrams shown in Fig. 4. When passing through the relatively sensitive surface of the device of an unheated metal controlled product, a pulse information signal U10 with a logic level of "1" about its identification is processed only at the output terminal 20. At the output terminal 18, there is a voltage with a logic level of "0", and the identification cycle of an unheated metal products are described by diagrams shown in figure 5.

In the identification mode of heated metal and unheated non-metallic products, the output terminals 18 and 22 of the device are used, and its output terminal 20 is not used. With the passage of the relatively sensitive surface of the heated metal controlled product at the output terminal 18, a pulsed information signal U9 with a logic level of "1" is carried, carrying information about its identification. At the same time, a voltage with a logic level of “0” is present at the output terminal 22, and the identification cycle of a heated metal product is described by the diagrams shown in Fig. 4. When passing through the relatively sensitive surface of the device of an unheated non-metallic controlled product, a pulsed information signal U11 with a logic level of "1" about its identification is processed only at output terminal 22. At the output terminal 18, there is a voltage with a logic level of "0", and the identification cycle of an unheated non-metallic products are described by diagrams shown in Fig.6.

In the identification mode of unheated metal and unheated non-metal products, the output terminals 20 and 22 of the device are used, and its output terminal 18 is not activated. When passing through the relatively sensitive surface of the device of an unheated metal controlled product at the output terminal 20, a pulsed information signal U10 with a logic level of "1" is carried, carrying information about its identification. At the same time, a voltage with a logic level of “0” is present at the output terminal 22, and the identification cycle of an unheated metal product is described by the diagrams shown in FIG. When the relatively sensitive surface of the device is monitored for unheated non-metallic products, a pulse information signal U11 with a logic level of "1" about its identification is processed only at output terminal 22. At the output terminal 20, there is a voltage U10 with a logic level of "0", and the identification cycle of unheated non-metallic products are described by diagrams shown in Fig.6.

The proposed device implements a pulsed mode of generating information signals at its outputs for identifying heated and unheated products, when the movement of the controlled product relative to its sensitive surface without stopping it unambiguously associates the presence of a short-term pulse with a logic level “1” at its corresponding output, the duration of which fixed and determined by the parameters of the elements of the timing RC circuit of a single-shot 10, and not the presence of a high logic potential level, continuously monitors the presence of the test object within the region of the sensitive surface of the device located therein in a state of moving or in a stationary position during an arbitrarily long period of time, the duration of which is determined only by finding a duration controlled products therein. This mode of generating information signals at the outputs of the proposed device allows along with the identification of moving controlled products also control the rotation of the products.

This, in turn, allows you to ensure the operation of the proposed device in three modes of monitoring the rotation of products, taking into account their thermal state and the type of material from which they are made.

1. The control mode of rotation of heated metal products.

2. The control mode of rotation of unheated metal products.

3. The control mode of rotation of unheated non-metallic products.

In the control mode of rotation of heated metal products, the device functions as a pulsed non-contact sensor for monitoring the inductive-optical type. The operation of the device in this case is described by the diagrams shown in figure 4. In this case, the pulse information signal is removed from the output terminal 18, and the output terminals 20 and 22 are not involved.

In the rotation control mode of unheated metal products, the device functions as a pulsed non-contact sensor for monitoring the inductive-capacitive type. The operation of the device in this case is described by the diagrams shown in Fig.5. In this case, the pulse information signal is removed from the output terminal 20, and the output terminals 18 and 22 are not involved.

In the rotation control mode of unheated non-metallic products, the device functions as a pulsed non-contact capacitive-type monitoring sensor. The operation of the device in this case is described by the diagrams shown in Fig.6. In this case, the pulsed information signal is removed from the output terminal 22, and the output terminals 18 and 20 are not involved.

Claims (1)

An apparatus for identifying and controlling rotation of articles containing an inductive sensitive element made in the form of an inductor placed in an annular groove of the open end of a ferrite core with a central hole, connected in series to an electric oscillation generator, in the oscillatory circuit of which an inductive sensitive element is included, the first threshold element, series-connected infrared photodetector mounted on the closed end of the ferrite core it is clear with its central hole, the pulse shaper, as well as the first logical element And, the output of which is the first output of the device, characterized in that, in order to expand the functionality of the device by providing recognition along with heated metal products of unheated metal and non-metal products with the extension nomenclature of controlled products, the first trigger is introduced into it, the C-input of which is connected to the output of the first threshold element, the D-input - with the source supply voltage, direct output - with the first input of the first logical element And, the second trigger, the C-input of which is connected to the output of the pulse shaper, D-input - to the power supply voltage, direct output - to the second input of the first logical element And, capacitive sensitive element in the form of a conductive plate of any geometric shape with a central hole, the geometric shape of which repeats the geometric shape of the outer side surface of the ferrite core, multivibrator connected in series with a capacitive sensing element, located at its input, a detector, a second threshold element, and a second AND gate, the first input of which is connected to the direct output of the first trigger, the second input is the inverse output of the second trigger, and its output is the second output of the device, the third logical element And, the first input of which is connected to the inverse output of the first trigger, the second input to the inverse output of the second trigger, and its output is the third output of the device, the third trigger, the C-input of which is connected to the output of a threshold element, D-input - with a power supply source, direct output - with third inputs of the first, second and third logical elements And, a one-shot oscillator, whose input is connected to the output of the second threshold element, output - to the fourth inputs of the first, second and third logical elements And, the initial setting unit, the input of which is connected to the output of the one-shot, the output - with the R-inputs of the first, second and third triggers, while the capacitive sensing element is installed coaxially with the central hole of the ritual core and the outer side surface of the ferrite core covering its inner end surface around its entire perimeter with a gap between these surfaces, the inductive sensitive element and the infrared photodetector form the sensitive element of the device, and the plane of the optical window of the infrared photodetector, the plane of the open end of the ferrite core and one of the planes capacitive sensing element, directed in one direction, are installed in parallel and form a sensor the surface of the device.

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