Electrical resistors – Resistance value responsive to a condition – Gas – vapor – or moisture absorbing or collecting
Patent
1993-12-20
1995-09-19
Lateef, Marvin M.
Electrical resistors
Resistance value responsive to a condition
Gas, vapor, or moisture absorbing or collecting
338307, 338320, H01C 700
Patent
active
054519209
ABSTRACT:
A thick film hydrogen sensor element includes an essentially inert, electrically-insulating substrate having deposited thereon a thick film metallization forming at least two resistors. The metallization is a sintered composition of Pd and a sinterable binder such as glass frit. An essentially inert, electrically insulating, hydrogen impermeable passivation layer covers at least one of the resistors.
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P. A. Michaels, "Summary Report: Design, Development and Prototype Fabrication of an Area Hydrogen Detector (5 Apr. 1963 through 4 Apr. 1964)," Sep. 1964.
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M. A. Butler and D. S. Ginley, "Hydrogen Sensing with Palladium-Coated Optical Fibers," J. Appl. Phys., 64(7), pp. 3706-3712, 1 Oct. 1988.
Hoffheins Barbara S.
Lauf Robert J.
Adams Harold W.
Griffin J. Donald
Lateef Marvin M.
Marasco Joseph A.
Martin Marietta Energy Systems Inc.
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