SU165792A1 - - Google Patents

Description

Automatic ir wave meters (frequency meters) of the type ChE are known, operating on the principle of converting siiusoidal oscillations into a sequence of pulses. Wavemeters of this type are limited to vernichnim but the frequency.

The proposed automatic direct reading wave meter is characterized by the fact that in it the adjustment body of the oscillating circuit is coupled with a digital digitizer of wave meter scale indicators. As a result, the working range is extended towards the high frequencies.

The signal from the detector head of the resonant circuit is fed to digital indicators of the scale of the wavemeter.

In order to obtain a large number of reference points a digital indicator), the first device may contain a ten-day gearbox with deceleration (for example, 10: 1).

The drawing presents a block diagram of an automatic search wave meter.

The volomer consists of a resonance circuit /, a detector head 2 and a digital indig; atoric device 3. The tuning unit 4 of the resonant circuit is coupled with a digital circuit breaker of the wavemeter scale, which circuit can be done either by the I alvapic or capacitive method. The closure of the closure at each time point is uniquely determined by the position of the setting element.

The digital indicator} device consists of a set of elements, of which 5 is triggered and shows a certain frequency. Indicator elements are electronic circuits locked in a normal state in two channels. When the wavemeter is working, one of the channels opens

0 successively in each indicator element by the interlocking device in its rotation synchronously with the displacement of the organ and adjustment. The second channel opens with a current pulse from the detector head of the resistive circuit in

5 moment of resonance. A current pulse is applied simultaneously to all indicator elements. When the tuning body is evenly shifted and the circuit breaker with them is connected, the volnomer searches for it and, if there is a resonance, automatically shows the corresponding frequency.

In order to obtain a large number of reference points, the digital indicator device contains a decade reducer with slow motion (for example, 10: I).

The principle on which the wave meter is based makes it possible to construct a whole range of standardized wavemeters into various ranges that will differ between the invention.

1. An automatic search wave meter with a direct reading, containing a resonant circuit and a detector head for indicating resonance, characterized in that, in order to expand the operating dianazone towards the high frequencies, the oscillating circuit tuning element is coupled with the digital indicator gauge of the wavemeter scale.

2. Vol. No. 1, characterized in that the signal from the detector head of the resonant circuit is supplied to digital indicators, wave meter scales.

3.Volnomer on PP. 1, 2, different; By the fact that, in order to obtain a large number of reference points, the digital display device contains a ten-day gearbox with a slowdown (for example, 10: 1).

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