Electromagnetic flowmeter

Details Electromagnetic flowmeter Electromagnetic flowmeter

1984-03-15

1985-09-03

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

By measuring electrical or magnetic properties

G01F 160

Patent

active

045384681

ABSTRACT:
An electromagnetic flowmeter includes a flow rate detecting circuit; an exciting circuit for supplying an exciting current to this flow rate detecting circuit; a signal processing section for sampling an output signal from the flow rate detecting circuit and smoothing this sampled output signal; and a signal generating circuit for supplying a sampling signal and an excitation control signal to the exciting circuit and the signal processing section, respectively. This signal generating circuit supplies a sampling signal having the frequency which is apart by a range of 0.5 to 10% from the frequency of the commercial power source to the signal processing section.

REFERENCES:
patent: 4117721 (1978-10-01), Suzuki et al.
patent: 4206641 (1980-06-01), Takada
patent: 4227408 (1980-10-01), Schmock et al.
patent: 4296636 (1981-10-01), Mannherz

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