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AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsRobert L. Ruedisueli, Christine A. Bowles, Brian D. Layer
Estimating the term…
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 substrate's coated area which contacts the electrolyte effectively represents a working electrode. Practice “in the field” is possible relative to coated conductive substrates associated with diverse entities.
Coating assessment apparatus suitable for on-site use in association with a metal substrate and with electrochemical noise instrumentation including an ammeter and a voltmeter, said apparatus comprising:
A system, based on electrochemical noise, for evaluating the condition of a coating on a metallic substrate, said system comprising a zero resistance ammeter, a voltmeter, a reservoir adaptable to containment of electrolyte and to attachment to said metallic substrate whereby said electrolyte communicates with a coated portion of said metallic substrate, a witness electrode communicable with said electrolyte and at least substantially consisting of an exposed single metal material, a reference electrode communicable with said electrolyte, a first conductor for connecting an uncoated portion of said metallic substrate with said ammeter and with said voltmeter, a second conductor for connecting said witness electrode with said zero resistance ammeter in the absence of a resistor between said witness electrode and said zero resistance ammeter, and a third conductor for connecting said reference electrode with said voltmeter, wherein, upon the effecting of the respective said connections by said first conductor, said second conductor and said third conductor:
A method, based on electrochemical noise, for evaluating the condition of a coating on a metallic substrate, said method comprising:
Coating assessment apparatus suitable for on-site use in association with a coated metal substrate and with electrochemical noise instrumentation including an ammeter and a voltmeter, said apparatus comprising:
Dependencies are inferred from the claim text.