Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1979-04-26
1981-02-24
Krawczewicz, Stanley T.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
328148, 328162, G01R 2700
Patent
active
042530571
ABSTRACT:
A circuit including a peak detector detects the distortion of the leading corner of a square-wave reference signal in the over-compensated condition of an attenuator probe and turns on an indicator light. The light turns off as the probe is adjusted to the properly compensated condition because the distortion is no longer detected.
REFERENCES:
patent: 2981851 (1961-04-01), Wier
patent: 2982887 (1961-05-01), Seeley, Jr.
patent: 4070615 (1978-06-01), Crop
Peach et al., Peak-Shift Measurements, IBM Technical Disclosure Bulletin, Feb. 1971, pp. 2728-2730.
Carlton Dale E.
Wilke William G.
Krawczewicz Stanley T.
Noe George T.
Tektronix Inc.
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