System for measuring the frequency of an electrical signal

Details System for measuring the frequency of an electrical signal System for measuring the frequency of an electrical signal

1975-06-13

1977-07-05

Rolinec, Rudolph V.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Phase comparison

333 72, G01R 2300

Patent

active

040342883

ABSTRACT:
The present invention relates to system for measuring the frequency of an electrical signal. The device in accordance with the invention comprises, deposited upon a piezo-electric substrate a transducer array in the form of interdigital comb structures whose teeth are in the form of a circular arc and which are capable of emitting surface elastic waves at the surface of the substrate, and a series of pick-ups elements of substantially point type, arranged to selectively receive said surface elastic waves.

REFERENCES:
patent: 3697899 (1972-10-01), Dias
patent: 3727718 (1973-04-01), Whitehouse

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