Auto ranging of a frequency measuring instrument

Details Auto ranging of a frequency measuring instrument Auto ranging of a frequency measuring instrument

1985-06-04

1987-09-22

Levy, Stewart J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

324 78R, 364484, G01R 2310

Patent

active

046957910

ABSTRACT:
An auto ranging system for causing an instrument for determining the frequency of a wave to be in a frequency mode or a period mode in response to the digits of the frequency of the wave determined in a trial interval. The cycles of the wave during which the cycles of an oscillator are counted during a period mode can also be selected from an examination of the digits.

REFERENCES:
patent: 3917927 (1975-11-01), Minton
patent: 3990007 (1976-11-01), Hohhof
patent: 4066875 (1978-01-01), Ollington et al.
patent: 4224568 (1980-09-01), Griner

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