Apparatus for indicating the sequence of alternating current sig

Details Apparatus for indicating the sequence of alternating current sig Apparatus for indicating the sequence of alternating current sig

1976-11-22

1978-08-01

Tokar, M.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Phase comparison

328134, G01R 2500

Patent

active

041045866

ABSTRACT:
An apparatus which indicates the sequence of a pair of alternating current input signals by determining the sense of a datum crossing in one input signal with respect to the polarity of the other input signal at the time of the datum crossing.

REFERENCES:
patent: 3296581 (1967-01-01), Warner
patent: 4025848 (1977-05-01), Delagrange

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