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Proceedings Paper

Fiber optic wide region temperature sensing system
Author(s): Xunjian Xu; Koji Nonaka; Hongbin Song
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Paper Abstract

A fiber optic wide region temperature sensing system based on optical pulse correlation measurement and SHG differential detection technique is proposed and demonstrated. In order to establish the reliability of this fiber optic temperature sensing system, a long-term wide region outside temperature monitoring experiment with a new designed 20ps time-bias optical pulse correlation unit for wide measurement rang was carried out. The temperature measured by means of a correlation sensor had the same variation as and higher sensitivity and quick measurement response than the digital thermometer. The resolution of the correlation sensor is approximately ±0.01 oC . This fiber optic temperature sensor can measure even in very tough environment and low and high temperature range. Not only point temperature but also a field area average temperature can monitor by this system.

Paper Details

Date Published: 23 February 2009
PDF: 7 pages
Proc. SPIE 7278, Photonics and Optoelectronics Meetings (POEM) 2008: Fiber Optic Communication and Sensors, 72781F (23 February 2009); doi: 10.1117/12.823298
Show Author Affiliations
Xunjian Xu, Kochi Univ. of Technology (Japan)
Koji Nonaka, Kochi Univ. of Technology (Japan)
Hongbin Song, Kochi Univ. of Technology (Japan)


Published in SPIE Proceedings Vol. 7278:
Photonics and Optoelectronics Meetings (POEM) 2008: Fiber Optic Communication and Sensors
Dieter Stefan Jäger; Deming Liu; Ping Shum, Editor(s)

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