Electromagnetic flowmeter characterized by zero quadrature signa

Details Electromagnetic flowmeter characterized by zero quadrature signa Electromagnetic flowmeter characterized by zero quadrature signa

1975-08-14

1976-12-07

Ruehl, Charles A.

Measuring and testing

Volume or rate of flow

System

G01F 158

Patent

active

039954846

ABSTRACT:
The coils of an electromagnetic flowmeter are driven by a current waveform which is the equivalent of a composite of a sine wave and a square wave. The induced voltage is perferably sampled during steady state conditions but is at all times free of transient voltage spikes or error signals.

REFERENCES:
patent: 2808723 (1957-10-01), Buntenbach
patent: 3550446 (1970-12-01), Tucker et al.
patent: 3759097 (1973-09-01), Cushing
patent: 3894430 (1975-07-01), Rummel et al.

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