Apparatus for measuring a coating on a plate

Details Apparatus for measuring a coating on a plate Apparatus for measuring a coating on a plate

1994-08-24

1996-02-27

Gutierrez, Diego F. F.

Measuring and testing

Coating material: ink adhesive and/or plastic

324439, 204434, 204412, 118712, G01N 2702

Patent

active

054939046

ABSTRACT:
The invention provides a method and apparatus for measuring the quality of a coating on a plate. The invention uses a method of measuring the impedance of a coating on a plate, which uses the steps of placing the coating on a plate in a chamber, and then placing a counter electrode in the chamber so that the coating lies between the plate and the counter electrode. A reference electrode is placed in the chamber so that the coating lies between the reference electrode and the plate, and the chamber is filled with a fluid with an ionic substrate. A potentiostat induces a voltage between the plate and the reference electrode, and impedance of the coating is measured to determine the quality of the coating.

REFERENCES:
patent: 4182638 (1980-01-01), Cooke
patent: 4256542 (1981-03-01), Tytgat et al.
patent: 4658365 (1987-04-01), Syrett et al.
patent: 4840719 (1989-06-01), Jasinski
patent: 4861453 (1989-08-01), Matsuoka et al.
patent: 4894251 (1990-01-01), Sieverin
patent: 5006786 (1991-04-01), McKubre et al.
patent: 5217594 (1993-06-01), Henkens et al.
Abstract of JA 149049, published Nov. 1980.

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