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Proceedings Paper

Vaporsense Contamination-Resistant High Temperature UV Hygrometer
Author(s): M. E. Gersh; M. W. Matthew; M. D. Bangert; P. Shuck
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Paper Abstract

The use of reliable and accurate hygrometers to monitor and control the operation of drying hoods would result in significant energy savings and improvement in product quality. We have developed such a hygrometer, VaporSense, which operates at high temperature and humidity in environments containing high concentrations of particulates and corrosive vapors. VaporSense uses the differential absorption of light by water vapor wavelengths to determine absolute humidity. A UV fiber-optic prulit, is inserted into the contaminating environment. Optical surfaces are kept clean by a curtain of dry air. VaporSense prototypes have been installed in a variety of industrial drying sites. Stable, long term, contamination free operation was demonstrated.

Paper Details

Date Published: 29 November 1988
PDF: 16 pages
Proc. SPIE 0961, Industrial Optical Sensing, (29 November 1988); doi: 10.1117/12.947859
Show Author Affiliations
M. E. Gersh, Spectral Sciences Inc. (United States)
M. W. Matthew, Spectral Sciences Inc. (United States)
M. D. Bangert, Pacer Systems, Inc. (United States)
P. Shuck, Pacer Systems, Inc. (United States)


Published in SPIE Proceedings Vol. 0961:
Industrial Optical Sensing
James Carney; Ernie Stelzer, Editor(s)

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