Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1976-04-26
1977-03-29
Miller, Jr., Stanley D.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324DIG1, 324 65R, 324 99R, 328 1, 328167, H04B 110, G01R 2702, G01R 1706
Patent
active
040152090
ABSTRACT:
A carrier wave compensator includes a novel sampling filter connected between a null amplifier and a compensation potentiometer to suppress interference voltages without deteriorating the dynamic response of the system. The sampling filter includes a multiplier, an integrator and a sample and hold circuit which is reset during zero passages of the carrier wave.
REFERENCES:
patent: 3308383 (1967-03-01), Kinoshita et al.
patent: 3510696 (1970-05-01), Bargen et al.
patent: 3550013 (1970-12-01), Gurol
patent: 3824479 (1974-07-01), Alger
patent: 3845385 (1974-10-01), Ebrecht
Franzblau Bernard
Miller, Jr. Stanley D.
Trifari Frank R.
U.S. Philips Corporation
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