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DE580673C - Arrangement for displaying the mean value of a fluctuating measured variable - Google Patents

Arrangement for displaying the mean value of a fluctuating measured variable

Info

Publication number
DE580673C
DE580673C DEG82789D DEG0082789D DE580673C DE 580673 C DE580673 C DE 580673C DE G82789 D DEG82789 D DE G82789D DE G0082789 D DEG0082789 D DE G0082789D DE 580673 C DE580673 C DE 580673C
Authority
DE
Germany
Prior art keywords
mean value
measured variable
arrangement
displaying
capacitor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEG82789D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FRITZ HOFMANN DIPL ING
HANS GRANER DIPL ING
Original Assignee
FRITZ HOFMANN DIPL ING
HANS GRANER DIPL ING
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by FRITZ HOFMANN DIPL ING, HANS GRANER DIPL ING filed Critical FRITZ HOFMANN DIPL ING
Priority to DEG82789D priority Critical patent/DE580673C/en
Application granted granted Critical
Publication of DE580673C publication Critical patent/DE580673C/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K3/00Thermometers giving results other than momentary value of temperature
    • G01K3/02Thermometers giving results other than momentary value of temperature giving means values; giving integrated values
    • G01K3/06Thermometers giving results other than momentary value of temperature giving means values; giving integrated values in respect of space
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B49/00Measuring or gauging equipment on boring machines for positioning or guiding the drill; Devices for indicating failure of drills during boring; Centering devices for holes to be bored
    • B23B49/04Devices for boring or drilling centre holes in workpieces
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/34Measuring arrangements characterised by the use of electric or magnetic techniques for measuring roughness or irregularity of surfaces
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D1/00Measuring arrangements giving results other than momentary value of variable, of general application
    • G01D1/02Measuring arrangements giving results other than momentary value of variable, of general application giving mean values, e.g. root means square values
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/36Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
    • G01P3/40Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light using stroboscopic means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Description

Bibfiotheek
Pur, Ind. Eigendonra
Library
Pur, Ind. Eigendonra

18 AUG. 193318 AUG. 1933

DEUTSCHES REICHGERMAN EMPIRE

AUSGEGEBEN AM
14. JULI 1933
ISSUED ON
JULY 14, 1933

REICHSPATENTAMTREICH PATENT OFFICE

PATENTSCHRIFTPATENT LETTERING

JVr 580673
KLASSE 42 d GRUPPE 4
JVr 580673
CLASS 42 d GROUP 4

G 827891X142 d Tag der Bekanntmachung über die Erteilung des Patents: 2g. Juni 1933G 827891X142 d Date of publication of the patent grant: 2g. June 1933

2)ipi.-3ng. Hans Graner und 2)ipl.-3ng. Fritz Hofmann in München2) ipi.-3ng. Hans Graner and 2) ipl.-3ng. Fritz Hofmann in Munich

Anordnung zum Anzeigen des Mittelwerts einer schwankenden MeßgrößeArrangement for displaying the mean value of a fluctuating measured variable

Patentiert im Deutschen Reiche vom 9. Juni 1931 abPatented in the German Empire on June 9, 1931

Als Empfänger für elektrische Fernmeßeinrichtungen wird häufig ein Energiespeicher, beispielsweise ein Kondensator, benutzt, dessen Spannung oder Entladestrom das An-Zeigeinstrument speist, während seine Aufladung durch einzelne Stromstöße erfolgt, deren Zahl, Dauer oder Verhältnis der Meßgröße proportional ist. Das Empfangsinstrument wird bei solchen Anordnungen trotz des Energiespeichers noch gewisse Schwankungen zeigen, die die Ablesung beeinträchtigen. Man könnte zwar diese Schwan-. klingen durch genügende Vergrößerung des Energieinhalts des Speichers oder der Dämpfung des Instruments so weit verkleinern, daß sie praktisch verschwinden. Dadurch würde sich jedoch bei einer Änderung der Meßgröße das Instrument nur sehr langsam auf den neuen Meßwert einstellen.An energy storage device is often used as a receiver for electrical telemetry equipment, for example a capacitor, whose voltage or discharge current is used, the indicating instrument feeds, while its charging takes place through individual current surges, their number, duration or ratio of the measured variable is proportional. In such arrangements, the receiving instrument will still have certain fluctuations in spite of the energy store that affect the reading. You could swan this. sound through sufficient enlargement of the Reduce the energy content of the memory or the damping of the instrument so much, that they practically disappear. However, this would affect a change adjust the instrument very slowly to the new measured value.

Durch die vorliegende Erfindung soll erreicht werden, daß der Zeiger des Empfängers bei gleichbleibender Meßgröße ruhig bleibt und trotzdem schnell nachfolgt, wenn sie sich verändert. Diese beiden einander widersprechenden Bedingungen werden dadurch miteinander vereinigt, daß die obere und untere Grenze, zwischen denen der Ladezustand des Energiespeichers (z. B. die Spannung eines Kondensators) schwankt, durch Fühlorgane Cz. B. elektrische Ventile) abgetastet und durch zwei weitere Energiespeicher (z. B. Kondensatoren) festgehalten werden. Das Empfangsinstrument mißt (z. B. über einen Spannungsteiler) den Mittelwert zwischen den Ladezuständen dieser beiden Zusatzspeicher und damit zwischen den beiden Grenzwerten. Die Wirkungsweise einer solchen erfindungsmäßigen Anordnung wird am besten an Hand der beiliegenden Abbildung erläutert, die ein charakteristisches Ausführungsbeispiel schematisch wiedergibt. Der Kondensator 1 stellt den ersten Energiespeicher dar, der durch eine nicht gezeichnete Fernübertragungseinrichtung über die Klemmen 2 und über den Widerstand 3 im Takte einer Impulsfrequenz oder eines Impulsverhältnisses usw. aufgeladen wird und sich über den Widerstand 4 entlädt. Seine Spannung schwankt nach Maßgabe seiner Kapazität und der Größe der Widerstände mit den Impulsen auf und ab. Um keine zu großen Einstellzeiten für das an ihm liegende Empfangsinstrument zu erhalten, sei er verhältnismäßig klein angenommen, so daß die Spannungsschwankungen entsprechend groß sind. Um das Instrument ruhig zu halten, wird der obere und der untere ΰΓεηζλνεΓί dieser Spannungsschwankungen durch zwei entgegengesetzt geschaltete Ventile 5 und 6 abgetastet, in den Kondensatoren 7 und 8, die wesentlich kleiner sind als der Kondensator i, gespeichert und durch einen Spannungsteiler 9 mit großem Widerstand gemittelt dem Instrument zugeführt, das beispielsweise als hochohmiges Drehspulinstrument oder als Röhrenvoltmeter die Spannung· an den Klemmen 10 mißt. Der Widerstand 9 wird so gewählt, daß der durch ihn bedingte Spannungsaus-The aim of the present invention is to ensure that the pointer of the receiver remains steady while the measured variable remains the same and nevertheless follows quickly if it changes. These two contradicting conditions are combined in that the upper and lower limits, between which the state of charge of the energy storage device fluctuates (e.g. the voltage of a capacitor), are controlled by sensing elements Cz. B. electric valves) are scanned and held by two other energy stores (z. B. capacitors). The receiving instrument measures (e.g. via a voltage divider) the mean value between the charge states of these two additional memories and thus between the two limit values. The mode of operation of such an arrangement according to the invention is best explained with reference to the accompanying figure, which shows a characteristic exemplary embodiment schematically. The capacitor 1 represents the first energy store, which is charged by a remote transmission device (not shown) via the terminals 2 and via the resistor 3 in the cycle of a pulse frequency or a pulse ratio, etc. and is discharged via the resistor 4. Its voltage fluctuates up and down with the pulses depending on its capacity and the size of the resistors. In order not to have too long setting times for the receiving instrument lying on it, it is assumed to be relatively small, so that the voltage fluctuations are correspondingly large. To keep the instrument steady, the upper and lower ΰΓεηζλνεΓί of these voltage fluctuations are scanned by two oppositely connected valves 5 and 6, stored in capacitors 7 and 8, which are much smaller than capacitor i, and stored by a voltage divider 9 with a large Averaged resistance is fed to the instrument, which measures the voltage at the terminals 10, for example as a high-resistance moving-coil instrument or as a tube voltmeter. The resistor 9 is chosen so that the voltage output caused by it

gleich zwischen den Kondensatoren 7 und S so langsam erfolgt, daß das Instrument keine nennenswerten Schwankungen mehr zeigt. Ändert sich die Meßgröße am Kondensator 1, so wird einer der beiden Kondensatoren 7 oder S über das zugehörige Ventil sofort auf den neuen Wert eingestellt, der andere folgt durch Entladung oder Ladung über den Widerstand 9 langsam nach, so daß das Instrument im ersten Augenblick wenigstens die Hälfte der Änderung anzeigt und sich dann weiter dem Endwert nähert. Schaltet man dem Widerstand9 den Kondensator ix parallel, so wird durch dessen spannungshaltende Wirkung fast die ganze Spannungsänderung des Meßwertes sofort auf das Instrument 10 übertragen, wohingegen der Ausgleich des verbleibenden Restes freilich wegen der Wirkung des Kondensators 11 entsprechend langsamer erfolgt. Diese Art der Einstellung paßt sich jedoch den gewöhnlichen Bedürfnissen gut an.between the capacitors 7 and S takes place so slowly that the instrument does not shows more significant fluctuations. If the measured variable on capacitor 1 changes, so one of the two capacitors 7 or S is opened immediately via the associated valve the new value is set, the other follows by discharging or charging via the Resistance 9 slowly so that the instrument at least for the first time shows half of the change and then continues to approach the final value. Switches the resistor 9 is the capacitor ix parallel, almost the entire voltage change of the measured value is immediately applied to the instrument due to its voltage-holding effect 10 transferred, while the balance of the remainder of course because of the effect of the capacitor 11 takes place correspondingly more slowly. This kind of Attitude, however, adapts well to ordinary needs.

Das mechanische Abbild dieser Anordnung ließe sich z. B. so ausführen, daß die beiden Grenzstellungen eines um seinen Mittelwert schwankenden Zeigers durch Fühlhebel oder Schleppzeiger abgetastet werden. Zur Speicherung der Grenzstellungen sind die Schleppzeiger je mit einer Schwungmasse behaftet, die unter sich durch eine weiche Feder gekuppelt sind. Der Mittelpunkt der Feder gibt den getnittelten und beruhigten Empfangswert an. Zur Nachahmung der Wirkung des Kondensators 11 werden die beiden Schleppzeiger außerdem über einen Öl- oder Luftkatarakt miteinander verbunden, so daß bei raschen Änderungen der Stellung eines Schleppzeigers der andere vorübergehend mitgezogen wird, während der anschließende, langsame Ausgleichsvorgang ohne Behinderung durch den Katarakt ablaufen kann.The mechanical image of this arrangement could be z. B. run so that the two Limit positions of a pointer fluctuating around its mean value can be scanned by a feeler lever or a drag pointer. To the Storage of the limit positions, the drag pointers each have a flywheel, which are coupled to each other by a soft spring. The center of the pen indicates the averaged and calmed reception value. To imitate the effect of the capacitor 11, the two drag pointers are also via an oil or Air cataract connected to each other, so that with rapid changes in position one Drag pointer, the other is temporarily dragged along, while the subsequent, slow equalization process can take place without being hindered by the cataract.

Claims (2)

Patentansprüche:Patent claims: i. Anordnung zum Anzeigen des Mittelwerts einer schwankenden Meßgröße,-dadurch gekennzeichnet, daß die obere und untere Grenze, zwischen denen der Ladezustand eines Energiespeichers (z. B. die Spannung des Kondensators 1) schwankt, durch Fühlorgane (z. B. elektrische Ventile 5, 6) abgetastet und durch zwei weitere Energiespeicher (z. B. die Kondensatoren 7 und 8) festgehalten werden und ihr Mittelwert (z. B. über einen Spannungsteiler 9) mittelbar oder unmittelbar gemessen wird.i. Arrangement for displaying the mean value of a fluctuating measured variable, -thereby characterized in that the upper and lower limits between which the state of charge an energy storage device (e.g. the voltage of capacitor 1) fluctuates, scanned by sensing elements (e.g. electric valves 5, 6) and by two other energy storage devices (e.g. the capacitors 7 and 8) are recorded and their mean value (e.g. via a Voltage divider 9) is measured directly or indirectly. Anordnung nach Anspruch 1, da-Arrangement according to claim 1, since 2.2. durch gekennzeichnet, daß der Unterschied zwischen den beiden Grenzwerten durch eine mit der Zeit verschwindende Festhaltevorrichtung (z. B, durch einen Kondensator 11) auch bei Änderungen der Meßgröße vorübergehend aufrechterhalten wird.characterized in that the difference between the two limit values by a holding device that disappears over time (e.g. by a Capacitor 11) temporarily maintained even if the measured variable changes will. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEG82789D 1931-06-09 1931-06-09 Arrangement for displaying the mean value of a fluctuating measured variable Expired DE580673C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG82789D DE580673C (en) 1931-06-09 1931-06-09 Arrangement for displaying the mean value of a fluctuating measured variable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG82789D DE580673C (en) 1931-06-09 1931-06-09 Arrangement for displaying the mean value of a fluctuating measured variable

Publications (1)

Publication Number Publication Date
DE580673C true DE580673C (en) 1933-07-14

Family

ID=7137637

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG82789D Expired DE580673C (en) 1931-06-09 1931-06-09 Arrangement for displaying the mean value of a fluctuating measured variable

Country Status (1)

Country Link
DE (1) DE580673C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1020464B (en) * 1951-06-26 1957-12-05 Exact Weight Scale Company Test device for monitoring the production of successive test specimens
DE1126631B (en) * 1951-03-29 1962-03-29 Nat Ind Products Company Device for measuring a number of successive test specimens
DE1130901B (en) * 1959-06-27 1962-06-07 Westinghouse Canada Ltd Electrical control device for rolling mills
DE1278117B (en) * 1960-09-16 1968-09-19 Siemens Ag Arrangement for the automatic evaluation of diagrams
DE1257443B (en) * 1958-03-14 1974-05-22

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1126631B (en) * 1951-03-29 1962-03-29 Nat Ind Products Company Device for measuring a number of successive test specimens
DE1020464B (en) * 1951-06-26 1957-12-05 Exact Weight Scale Company Test device for monitoring the production of successive test specimens
DE1257443B (en) * 1958-03-14 1974-05-22
DE1130901B (en) * 1959-06-27 1962-06-07 Westinghouse Canada Ltd Electrical control device for rolling mills
DE1278117B (en) * 1960-09-16 1968-09-19 Siemens Ag Arrangement for the automatic evaluation of diagrams

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