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Proceedings Paper

Fiber optic hydrogen sensor
Author(s): Chuck C. Jung; Elric W. Saaski; David A. McCrae
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Paper Abstract

This paper describes a novel fiber optic-based hydrogen sensor. The sensor consists of a thin-film etalon, constructed on the distal end of a fiber optic. The exterior mirror of the etalon is palladium or a palladium-alloy, which undergoes an optical change upon exposure to hydrogen. Data is presented on fiber optic sensors constructed with palladium and several alloys of palladium. The linearity of the optical response of these sensors to hydrogen is examined. Etalons made with pure palladium are found to be desirable for sensing low concentrations of hydrogen, or for one-time exposure to high concentrations of hydrogen. Etalons made from palladium alloys are found to be more desirable in applications were repeated cycling in high concentrations of hydrogen occurs.

Paper Details

Date Published: 23 September 1998
PDF: 7 pages
Proc. SPIE 3489, Fourth Pacific Northwest Fiber Optic Sensor Workshop, (23 September 1998); doi: 10.1117/12.323426
Show Author Affiliations
Chuck C. Jung, Research International, Inc. (United States)
Elric W. Saaski, Research International, Inc. (United States)
David A. McCrae, Research International, Inc. (United States)


Published in SPIE Proceedings Vol. 3489:
Fourth Pacific Northwest Fiber Optic Sensor Workshop
Chuck C. Jung; Eric Udd, Editor(s)

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