23 September 1998 Fiber optic hydrogen sensor
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Proceedings Volume 3489, Fourth Pacific Northwest Fiber Optic Sensor Workshop; (1998) https://doi.org/10.1117/12.323426
Event: Fourth Pacific Northwest Fiber Optic Sensor Workshop, 1998, Troutdale, OR, United States
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.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Chuck C. Jung, Elric W. Saaski, David A. McCrae, "Fiber optic hydrogen sensor", Proc. SPIE 3489, Fourth Pacific Northwest Fiber Optic Sensor Workshop, (23 September 1998); doi: 10.1117/12.323426; https://doi.org/10.1117/12.323426

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