SU1580315A1 - Period meter - Google Patents

Abstract

The invention relates to radio measurements and can be used to measure the period of a signal, the frequency of which varies slightly. The period meter contains forming device 1, time relay 2, selector 3, generator 4 reference pulses, pulse counter 5, counting device 6, RS flip-flop 7, storage register 9. Introduction of the switch 8 makes it possible to adjust the output readings of the device with the first impulse that comes after the fallen impulse, which improves the speed of the device. 2 Il.

Description

l 1

eight

entrance

one

Output

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FIG. I

Claims (1)

Claim A period meter containing a forming device, a time relay, a selector. a reference pulse generator, a pulse counter, a conversion device, a trigger, and a memory register, the output of the forming device being connected to the first input of the conversion device, a second trigger input, a setting counter pulse input 0, and a time relay input, the output of which is connected to the first input of the selector, the second input of which is connected to the output of the reference pulse generator, and the output of the selector is connected to the information input of the pulse counter and the second input of the recalculation device, the output of which is connected from the first m trigger input, characterized in that, in order to improve performance, a switch is inserted into it, the first trigger output connected to the first control input of the switch, the second trigger output connected to the second control input of the switch, the information inputs of which are connected to the information outputs of the pulse counter, the information outputs of the switch are connected to the information inputs of the memory register, the recording synchronization input of which is connected to the output of the forming device, the input of which is the input and spectator of the period. Fig. 2