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Proceedings Paper

Multichannel fiber optic temperature monitor
Author(s): Larry A. Jeffers
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Paper Abstract

We have developed a multichannel fiber-optic based radiation pyrometer for monitoring the temperature distribution across a moving web up to 4 meters wide. The system employs an array of up to 160 pick-ups whose outputs are delivered by optical fibers to the monitor where they are optically multiplexed onto a 16-channel germanium photodiode array. The pick-ups are deployed linearly across the web on 2.5 cm centers. A 32-channel prototype system achieved a noise limited precision of +/- 1 degree(s)C over the range 140 degree(s)C to 200 degree(s)C. The noise increased to +/- 5 degree(s)C at 100 degree(s)C.

Paper Details

Date Published: 7 February 1994
PDF: 10 pages
Proc. SPIE 2072, Fiber Optic Physical Sensors in Manufacturing and Transportation, (7 February 1994); doi: 10.1117/12.166878
Show Author Affiliations
Larry A. Jeffers, Babcock & Wilcox Co. (United States)

Published in SPIE Proceedings Vol. 2072:
Fiber Optic Physical Sensors in Manufacturing and Transportation
John W. Berthold III; Richard O. Claus; Michael A. Marcus; Robert S. Rogowski, Editor(s)

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