Phase-metering device

Details Phase-metering device Phase-metering device

1981-08-18

1984-03-20

Tokar, Michael J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Phase comparison

328133, G01R 2500

Patent

active

044383932

ABSTRACT:
A phase-metering device comprises first and second input signal sources; N-1 phase-shift circuits at N exceeding two, which are placed in series, a phase shift of each of said circuits being equal to .pi./N radians, the input of the first phase-shifter circuit being connected to the second input signal source; N phase converter units each having two potential (positive and inverted) outputs and two pulse outputs, first inputs of said units being connected to the first input signal source, a second input of the first phase converter unit being connected to the first input signal source, while second inputs of the other phase converter units are coupled to the outputs of the respective phase-shift circuits; the outputs of said phase converter units being connected to inputs of a pulse distributor whose outputs are coupled to inputs of a reversible counter; a digital recorder being connected to the outputs of said reversible counter.

REFERENCES:
patent: 3820022 (1974-06-01), Watt
patent: 3989931 (1976-11-01), Phillips
patent: 4070618 (1978-01-01), Thomas
patent: 4144489 (1979-03-01), Ward

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