Apparatus and method for measuring the frequency of a sweeping s

Details Apparatus and method for measuring the frequency of a sweeping s Apparatus and method for measuring the frequency of a sweeping s

1975-09-18

1977-08-09

Rolinec, Rudolph V.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

324 77C, G01R 2302

Patent

active

040413870

ABSTRACT:
A swept frequency measuring system is provided with an electronic counter for measuring the frequency of the sweeping signal from a sweeping signal generator, at a predetermined point in the sweep indicated by a marker. Upon the occurrence of a marker, the counter starts counting the frequency of the signal while the sweeping signal generator continues to sweep. After a predetermined interval, the counter stops counting for a second predetermined interval and, then, during a third predetermined interval counts down from the count made during the first interval. The resultant count remaining in the counter is an indication of the frequency of the sweeping signal at the marker, and this count is displayed in a digital display.

REFERENCES:
patent: 3643126 (1972-02-01), Hay
patent: 3735347 (1973-05-01), Whitney
patent: 3803486 (1974-04-01), Russell

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