SU1241471A2 - Device for checking frequencies and levels of output signals of generators - Google Patents

Abstract

The invention relates to the field of radio metering technology and can be used to automatically control and simultaneously measure and display the frequencies and levels of the output signals of generators, is additional to the author. St. No. 984059. The purpose of the invention is to expand the functionality of the device. The device contains a generator of I signals, frequency meter 2, amplitude comparator 3, form W o 4 M

Description

reference voltage transformer 4 sharpened pulse shaper 5j standby multivibrator 6, differentiation unit 7, binary static trigger 8, voltage source 9, key 10., To achieve the set goal, the second standby multivibrator 12, force- M9POWER 15 relay switch 18, reference voltage source 21, hommutator 20, registration unit 19.

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The invention of the accuracy of radio metering technology and dp can be used to automatically control and simultaneously measure and display the frequencies and levels of the output signals of the generators.

The purpose of the invention is to expand the functionality of the device due to the simultaneous automatic control, measurement and display of the frequencies and levels of the output signals of the generators.

Fig, I shows a block diagram of the device; in fig. 2 - timing charts of the device.

The device comprises a signal generator 1, a frequency meter 2, an amplitude comparator 3, a reference voltage transmitter 4, a shaper 5 OCTJ. rock pulses, the first standby multivibrator 6, differentiation unit 7, binary static trigger 8, voltage source 9 voltage switch 10, digital primary converter 11, second multivirus waiter 12, frequency divider 13, digital matching unit 14, pulse power amplifier 15, 16 rectangular pulse generator, digital — data output block 17, relay switch 18, registration block 19, switch 20, reference source 21, First output of signal generator 1 connected to frequency 2 input and amplitude first input Nogo comparator 3, a second input connected to the output of the reference voltage 4, entry 5 shaper genital momenta connected to the output of the amplitude kompa-

This allows you to automatically control, measure, register the current value of the frequency of generator 1. Introduction of a square pulse generator I6, divider 13, digital primary converter 11, matching unit 14, data output block 17 allows you to automatically monitor, measure, register the current value power level of the output signals of the generator 1. 2 Il.

ratora 3, and the first output - with the input of the first standby multivibrator 6, the output of which is connected to the input of differentiation unit 7, the output of which is connected to the counting input of the trigger B, the S input of which is connected to the output of the key 10, the R input of the trigger 8 is connected with the second output of the signal generator 1, and the output of the trigger 8 is connected to the control inputs of the signal generator 1 and the frequency meter 2, the input of the switch 10 is connected to the output of the voltage source 9. Sequentially connected is the second waiting multivibrator 12, whose input is connected to the second output Ate 5 pointed pulses, power amplifier 15, relay switch 18, the second output of which is connected to the input of frequency meter 2 Remote start, comparator 20 and recording unit 19. Generator 16 square of pulses, frequency divider 13, digital primary converter 11 , the second input of which is connected to the first output of the generator 1 digital matching unit 14, the digital output data block 17, the output of which is connected to the second input of the switch 20, the third input of the switch 20 is connected to the output of the frequency meter 2. B the output of the reference voltage source 21 is connected to the second input of the relay switch 18,

The device works as follows.

The frequency of oscillator 1 is set to the lower limit f of the tuning range (Fig. 2a) and with

frequency meter 2 is measured. The output of the reference voltage generator 4 is set to a signal level y corresponding to the maximum permissible minimum level of the output signal of the generator I (Xy) (Fig. 2q).

At the initial time, the binary static trigger 8 is in the initial state 10. At the same time, a voltage is generated at its output, and 0, which is fed to the control input of the generator 1. At the time t, the key 10 is supplied from the voltage source 9 a binary static trigger 8 and translates it into position 01. The output of the trigger 8 produces a voltage (Fig. 2S), which is about turning off the frequency meter 2 and starts tuning the frequency of the generator 1 in the controlled range f, ..., f ( Fig. 2q). When the output signal of the generator reaches its maximum permissible minimum level, a frequency is generated at the output of the amplitude comparator 3, which, arriving at shaper 5, generates an electric pointed pulse U (Fig. 2 &) that starts first waiting multivibrator 6 (Fig. 22). The leading edge of the pulse of the multivibrator 6 is differentiated by the device 7 (Fig. 2a), the binary static trigger 8 is switched to the initial state 10. The frequency tuning of the oscillator 1 is stopped, and the frequency meter 2 is connected, determining the frequency f, where

one

The output level of the oscillator 1 is less than the acceptable value. The capacitance j, of the impulse of the input multivibrator 6 (Fig. 2i is selected on the basis of the time required for dp recording the frequency from the frequency meter 2.

At the same time, the first peaked impulse formed by the forming block 7 (Fig. 2 o), the translation of the tri-J Ig

ger 8 is in state 01. The frequency meter 2 is turned off and the frequency of the generator 1 is further adjusted. When the frequency f reaches, at which the output signal of generator 1 again corresponds to the maximum acceptable minimum level, the output of the amplitude comparator 3

By telem 5, the second pending multi-50 is triggered, a signal is generated again,

which, entering the shaper 5, generates a pulse of a peaked shape (Fig. 2 &), which will start both the waiting multivibrators 6 and 12, etc.

At the end of the control range at frequency t (Fig. 2q), from the second output of generator 1, the voltage Ug is applied to the R input of the trigger 8. Trigger 8

vibrator 12. The pulsed signal of the multivibrator 12 and y (Fig. 2e), amplified by the power amplifier 15, switches the relay switch 18 so that the voltage applied to its contacts from the reference voltage unit 21 goes to the first input of the switch 20. Switch 20 connects your

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t fO

15

20

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, the second entrance to the block 19 registration,

which starts recording information about the output power level, coming from the output of the generator 1 through blocks 1G, 14 and 17. At the same time, the digital primary converter 11 converts the level of the output power of the generator. 1 in a binary-decimal code with a quantization frequency determined by the frequency of the master oscillator of 16 square-wave pulses and the divisor of the 13 frequency. The digital code from the output of npeoQ-ramizer I1 goes to the digital matching unit 14 and from it to the digital output data unit 17. The duration Cp of the pulse of the second standby multivibrator 12 (Fig. 2e) is chosen equal to half the pulse duration of the first standby multivibrator 6, so that the frequency and output level of the generator I can be recorded at this time. At the end of the pulse the second standby multivibrator I2 returns to its original state and the relay switch 18 connects the source 21 of the reference voltage to its second output and supplies the voltage to the Remote start of the frequency meter 2 (at the same time, the voltage from the first input of the switch and 20 and its contacts will connect the recording unit 19 to the third input 20) of the switch. Information about the current frequency of the frequency meter 2 in binary-decimal code will go to the third input of the switch 20 and then to the recording unit 19, where it will be recorded.

At the time (t,) of the end of the pulse of the first waiting multivibrator 6, its falling edge is differentiated.

block 7 (Fig. 2 o), the translation of the tri-J Ig

25

thirty

35

40

ger 8 is in state 01. The frequency meter 2 is turned off and the frequency of the generator 1 is further adjusted. When the frequency f reaches, at which the output signal of generator 1 again corresponds to the maximum acceptable minimum level, the output of the amplitude comparator 3

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is reset, the frequency tuning of the generator I is stopped, the frequency meter and the recording unit 19 are connected,

dividing and recording the upper frequency f of the generator,

Thus, the introduction of a second standby multivibrator 12, a power amplifier 15, a switch relay 18, a reference voltage source 21 of the switch 20, a recording unit 19 allows automatic control, measurement and recording of the current frequency of the generator I, and the additional introduction of a rectangular generator pulses 16, divider 13, digital primary converter 11, matching unit 14, data output block 17 allows you to automatically monitor, measure and record the current value of the power level generator signal 1. In this case, the specified control level in the amplitude comparator 3 will answer the question about the suitability or unsuitability of the test object, and the entered blocks will indicate and register, without operator’s intervention, the exact frequency and output power levels of the Generator 1 at the exit points beyond acceptable limits, which expands Functional capabilities of the control device.

Claims (1)

Invention Formula A device for controlling the frequencies and output levels of generators according to the author. St. No. 984059, O TL, which, in order to expand its functionality, introduces in series a second waiting multivibrator, whose input is connected to the second output of a sharpened pulse former, a pulse power amplifier, a relay switch, a switch, and registration unit, as well as series-connected square pulse generator, frequency divider, digital primary converter, the second input of which is connected to the output of the signal generator, digital matching unit, digital howl a data output unit, the output of which is connected to the second input of the switch, as well as a voltage source, the third input of the switch is connected to the frequency meter output, the output of the voltage source is connected to the second input of the relay switch, the second output of which is connected to the input .