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Proceedings Paper

Research on a 260 degree C distributed optical fiber temperature sensor and its optimization design
Author(s): Hongzhi Zhao; Naiji Li; Dazun Zhao
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Paper Abstract

The paper presents theoretical and experimental investigations on distributed anti-Stokes ratio thermometry (DART) sensing for monitoring temperature in complicated structure. A technique, based on maximizing signal to noise ratio (SNR) of DART, has been proposed. A preliminary prototype DART system based on a microcomputer has been developed and optimized by this technique. It has spatial resolution of 15.6 m (limited by pulse width of the laser), measuring time of 160 s, temperature resolution of 7 degrees Celsius, sensing upper limit of 260 degrees Celsius, and sensing distance of 1.5 km.

Paper Details

Date Published: 10 January 1997
PDF: 8 pages
Proc. SPIE 3000, Laser Diode and LED Applications III, (10 January 1997); doi: 10.1117/12.263498
Show Author Affiliations
Hongzhi Zhao, Tsinghua Univ. (China)
Naiji Li, Beijing Institute of Technology (China)
Dazun Zhao, Beijing Institute of Technology (China)


Published in SPIE Proceedings Vol. 3000:
Laser Diode and LED Applications III
Kurt J. Linden, Editor(s)

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