Sensor for electrochemical measurement and method for diagnosing

Details Sensor for electrochemical measurement and method for diagnosing Sensor for electrochemical measurement and method for diagnosing

1989-05-22

1990-10-09

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

324718, 324559, 324446, 204421, G01N 2702, G01N 1700

Patent

active

049623605

ABSTRACT:
A sensor for electrochemical measurement is disclosed which includes a chamber made of an electrically insulative material and having an open end portion, a super absorbent polymer material filled in the chamber and absorbing at a selected rate a liquid electrolyte, an electrode disposed in the chamber, and a screen which covers the open end portion of the chamber and which prevents the super absorbent polymer material from dropping out from the chamber but permits the liquid electrolyte to transmit through the screen. A method is also disclosed which uses the sensor to measure the degree of degradation of a coating film on metal or the corrosion protective properties of a rust film created on the surface of steel.

REFERENCES:
patent: 3106677 (1963-10-01), Edgard
patent: 3343081 (1967-09-01), Lane
patent: 4197176 (1980-04-01), Ensanian
patent: 4806849 (1989-02-01), Kihira
Kihira: "A New Method to Monitor Corrosion . . . "-ASTM Symposium on Degradation of Metals-May 1986.

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