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Proceedings Paper

Fiber optic chemical sensing
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Paper Abstract

Monitoring of chemical species is important to a number of industrial and energy related industries. This paper presents a comparison of two fiber optic sensing schemes which are demonstrated for the detection of acetylene and carbon monoxide. The first sensor configuration utilizes the newly developed random hole optical fiber and detects gases entering into the holes in the fiber through the interaction with the evanescent field. The second scheme utilizes a hollow micro-capillary tube based fiber optic sensor system. In both systems, the detection of the chemical species is accomplished by analysis of the infrared absorption spectra produced by the species present in the path of the optical signal. The effect of varying pressure, micro-capillary tube diameter, capillary tube length, and gas species is presented.

Paper Details

Date Published: 5 November 2005
PDF: 15 pages
Proc. SPIE 5998, Sensors for Harsh Environments II, 59980D (5 November 2005); doi: 10.1117/12.634338
Show Author Affiliations
Gary Pickrell, Virginia Polytechnic Institute and State Univ. (United States)
Wei Peng, Arizona State Univ. (United States)
Bassam Alfeeli, Virginia Polytechnic Institute and State Univ. (United States)
Anbo Wang, Virginia Polytechnic Institute and State Univ. (United States)

Published in SPIE Proceedings Vol. 5998:
Sensors for Harsh Environments II
Anbo Wang, Editor(s)

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