Electromagnetic flow meter having electropolished electrodes

Details Electromagnetic flow meter having electropolished electrodes Electromagnetic flow meter having electropolished electrodes

2007-11-13

2007-11-13

Patel, Harshad (Department: 2855)

Measuring and testing

Volume or rate of flow

By measuring electrical or magnetic properties

Reexamination Certificate

active

11132806

ABSTRACT:
An electromagnetic flowmeter has a measuring tube through which a fluid to be measured flows, a magnetic field applying section which applies a magnetic field to the fluid to be measured, and a couple of electrodes which pick up an electromotive force generated according to a flow rate of the fluid to be measured, wherein each of the electrodes has an interface processed by electropolishing.

REFERENCES:
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patent: 4517846 (1985-05-01), Harrison et al.
patent: 4736634 (1988-04-01), Amata
patent: 5269191 (1993-12-01), Wada
patent: 1 288 912 (1972-09-01), None
patent: 63180419 (1988-07-01), None
patent: WO 03/088352 (2003-10-01), None
“Influence of the core material polishing on the fluxset sensor's operation” by Vertesy, G et al.; Jun. 2000.
Keisuke Kihara et al., “The Electrochemical Behavior of the Electrode for Electromagnetic Flowmeters,” 36thProceedings of the Japan Joint Automatic Control Conference, Oct. 27-29, 1993, pp. 415-416 (with English Abstract).
Sanwa Co., Ltd., “Technical Information,” (with concise explanation in English).
European Search Report dated Sep. 2, 2005.

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