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Proceedings Paper

The Effects Of Temperature On The Response Of A Porous Fiber Optic Humidity Sensor
Author(s): Q. Zhou; M. R. Shahriari; G. H. Sigel Jr.
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Paper Abstract

Fiber optic waveguides based on porous glasses offer excellent sensitivity and specificity for remote chemical sensing. This paper examines the effect of temperature on the response of a porous fiber optic humidity sensor. Cobalt chloride is used as the colorimetric reagent, permeated into the porous segment of the fiber. The humidity response of the fiber has been evaluated over a temperature range of 25°C to 90°C. Temperature effects appear to result both from changes in the extinction coefficient of cobalt chloride as well as differences in the sensing probe's equilibrium constants. The basic temperature dependence of the humidity sensor has been modeled in an effort to provide compensation for the measurement probe in a real world environment.

Paper Details

Date Published: 19 January 1989
PDF: 5 pages
Proc. SPIE 0990, Chemical, Biochemical, and Environmental Applications of Fibers, (19 January 1989); doi: 10.1117/12.959987
Show Author Affiliations
Q. Zhou, Rutgers University (United States)
M. R. Shahriari, Rutgers University (United States)
G. H. Sigel Jr., Rutgers University (United States)

Published in SPIE Proceedings Vol. 0990:
Chemical, Biochemical, and Environmental Applications of Fibers
Robert A. Lieberman; Marek T. Wlodarczyk, Editor(s)

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