Share Email Print
cover

Proceedings Paper

Fiber thermometer based on the cross detection of the fluorescence decay of Tm:YAG crystal fiber and background radiation
Author(s): Yonghang Shen; Weizhong Zhao; Jinglei He; Tong Sun; Kenneth T. V. Grattan
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

A fiber thermometer using the cross detection of the fluorescence decay and background radiation was presented to measure the temperature from room temperature to over 1600 °C. A YAG crystal fiber with a Tm doped tip was used as the sensing material. A phase-locked detection scheme was used for the fluorescence detection and background radiation compensation. The compensation current was also used for the background radiation detection. The fluorescence characteristics of the Tm doped YAG crystal fiber was analyzed in a temperature range from room temperature to over 1200 °C. The annealing effect on the probe material under high temperature was also investigated. The preliminary result showed that the system could achieve a resolution much better than 1 °C over the whole temperature range from room temperature to 1400 °C.

Paper Details

Date Published: 9 September 2002
PDF: 9 pages
Proc. SPIE 4920, Advanced Sensor Systems and Applications, (9 September 2002); doi: 10.1117/12.481968
Show Author Affiliations
Yonghang Shen, City Univ. and Zhejiang Univ. (China)
Weizhong Zhao, City Univ. and Zhejiang Univ. (China)
Jinglei He, Zhejiang Univ. (China)
Tong Sun, City Univ. (United Kingdom)
Kenneth T. V. Grattan, City Univ. (United Kingdom)


Published in SPIE Proceedings Vol. 4920:
Advanced Sensor Systems and Applications
Yun-Jiang Rao; Julian D. C. Jones; Hiroshi Naruse; Robert I. Chen, Editor(s)

© SPIE. Terms of Use
Back to Top