Multiperiodical phasemeter

Details Multiperiodical phasemeter Multiperiodical phasemeter

1977-10-31

1979-06-05

Tokar, M.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Phase comparison

328133, G01R 2500

Patent

active

041575008

ABSTRACT:
The invention provides a multiperiodical phasemeter which is arranged to supply a rectangular wave showing the instantaneous value of the difference to be measured between two waves, said phasemeter being connected to a display means which indicates said instantaneous value of said dephasing between two waves, a multiperiodical phasemeter wherein the phasemeter is connected to a low-pass filter producing the average value of said rectangular wave, differentiator for said average wave, a polarity detector parting into two distinct channels differentiated signals depending on the polarity thereof, a memory circuit consisting of a bistable multivibrator operated by the signals of the two said channels, and whereby the display means consists of an up-down counter operated by the signals of said memory so as to perform counting up or counting-down of the signals issued from the phasemeter.

REFERENCES:
patent: 3323053 (1967-05-01), Southern

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