Robert L. Ruedisueli - Vienna VA Christine A. Bowles - Ellicott City MD Brian D. Layer - Gaithersburg MD
Assignee:
The United States of America as represented by the Secretary of the Navy - Washington DC
International Classification:
G01R 2708
US Classification:
324700
Abstract:
Apparatus for using electrochemical noise analysis to assess the coating upon a conductive substrate comprises an electrolyte-containing cell, a witness electrode, a reference electrode and a working conductor. The electrolyte-containing cell is securely coupled with the coated conductive substrate so that the electrolyte is contiguous with a coated area of the metal substrate, which is demarcated by an electrolytic contact-permitting aperture in the electrolyte-containing cell. The witness electrode contacts the electrolyte and connects to an ammeter. The reference electrode contacts the electrolyte and connects to a voltmeter. Via the working conductor, the ammeter and the voltmeter each connect to a noncoated region of the metal substrate. The conductive substrates coated area which contacts the electrolyte effectively represents a working electrode. Practice âin the fieldâ is possible relative to coated conductive substrates associated with diverse entities.