Electrochemical flowmeter

Details Electrochemical flowmeter Electrochemical flowmeter

1984-10-01

1986-02-18

Ruehl, Charles A.

Measuring and testing

Volume or rate of flow

By measuring transit time of tracer or tag

204411, 73181, G01P 518

Patent

active

045704929

ABSTRACT:
A device for measuring the velocity of flow of a liquid comprises electrodes over which the liquid flows. A chemical emitting electrode is mounted so as to contact the liquid at a first point and is supplied with periodic input pulses by a current pulse generator such that chemicals are caused to be periodically generated on its surfaces. A second chemical detecting electrode is mounted downstream of the first point. The second electrode is connected to a potentiostatic circuit which produces an output signal when it detects the arrival of chemicals produced by the first electrode. A circuit measures the time between an input pulse and the corresponding output signal such that the velocity of the flow of the liquid can be determined.

REFERENCES:
patent: 1611502 (1926-12-01), Allen
patent: 2640936 (1953-06-01), Pajes
patent: 3019647 (1962-02-01), Beard et al.
patent: 4152935 (1979-05-01), Nagaishi et al.

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