DEVICE WHICH MEASURES FREQUENCY OF LOW- FREQUENCY SIGNALS Russian patent published in 1998 - IPC

Abstract RU 2101714 C1

FIELD: radio engineering instruments. SUBSTANCE: device has operational amplifier 1, reference voltage source 2, operational amplifier 3, digital-to-analog converter 4, measuring unit 5, counting pulse generator 6, time selector 7, pulse counter 8, memory unit 9, JK flip-flop 10, C flip-flop 11, differentiating circuit 12, input line, control line with corresponding connections. EFFECT: possibility to design low-frequency meter. 2 dwg

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RU 2 101 714 C1

Authors

Avanesov V.M.

Tereshkov V.V.

Dates

1998-01-10—Published

1992-02-07—Filed