Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Modulator/demodulator
Patent
1975-11-25
1977-05-31
Rolinec, Rudolph V.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Modulator/demodulator
332 43B, G01R 1918, H03C 154
Patent
active
040272397
ABSTRACT:
A device is provided for detecting the current level of a DC signal. It includes an even harmonic modulator to which a reference AC signal is applied. The unknown DC signal acts on the reference AC signal so that the output of the modulator includes an even harmonic whose amplitude is proportional to the unknown DC current.
REFERENCES:
patent: 2304135 (1942-12-01), Wise
patent: 2724742 (1955-11-01), Chesnut
patent: 2854633 (1958-09-01), Jager
patent: 3434075 (1969-03-01), Hawkins
Carlson Dean E.
Churm Arthur A.
Gottlieb Paul A.
Karlsen Ernest F.
Rolinec Rudolph V.
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