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Proceedings Paper

Zirconium fluoride glass fiber radiometer for low-temperature measurement
Author(s): A. El Khoniss; Serge R. Mordon; Guy Dhelin; Bruno Buys; Jean Claude Lesage
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Paper Abstract

Infrared signal transmission through zirconium glass fiber is used for noncontact temperature measurement. A fiber optic radiometer using a cooled photonic detector was designed and constructed for temperature measurements between 30 degree(s)C and 200 degree(s)C. An acquisition and data processing software allowing calibration, display, and storage of data was developed. In this work we suggest a new approach for signal processing, based on active filters. This method is compared to the synchronous detection technique using a lock-in amplifier. The dependence of the radiometer signal on ambient temperature and detector cooling is presented. The dependence of the radiometer signal on the black-body temperature is given. The radiometer spatial resolution is calculated. Since real time, high-accuracy low- temperature measurement was obtained, we suggest this IR fiber radiometric thermometer may be useful in medical applications.

Paper Details

Date Published: 10 February 1995
PDF: 9 pages
Proc. SPIE 2331, Medical Sensors II and Fiber Optic Sensors, (10 February 1995); doi: 10.1117/12.201244
Show Author Affiliations
A. El Khoniss, Institut National de la Sante et de la Recherche Medicale (France)
Serge R. Mordon, Institut National de la Sante et de la Recherche Medicale (France)
Guy Dhelin, Institut National de la Sante et de la Recherche Medicale (France)
Bruno Buys, Institut National de la Sante et de la Recherche Medicale (France)
Jean Claude Lesage, Institut National de la Sante et de la Recherche Medicale (France)


Published in SPIE Proceedings Vol. 2331:
Medical Sensors II and Fiber Optic Sensors
Anna Maria Verga Scheggi; Francesco Baldini; Pierre R. Coulet; Otto S. Wolfbeis, Editor(s)

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