Electrical test instruments

Details Electrical test instruments Electrical test instruments

1980-07-25

1982-11-30

Tokar, Michael J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

G01R 2314

Patent

active

043618049

ABSTRACT:
A combined frequency and modulation measuring instrument contains a frequency counter which provides a direct indication of a carrier frequency and which is used to control the frequency of a local oscillator by means of which a modulated carrier frequency is converted directly to a required intermediate frequency.

REFERENCES:
patent: 3736510 (1973-05-01), Wu
patent: 3978403 (1976-08-01), Mansfield
patent: 4236110 (1980-11-01), Shearer

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