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Proceedings Paper

Study on spatial resolution improvement of distributed temperature sensor system by linear fitting algorithm
Author(s): Miao Sun; Yuquan Tang; Jun Li; Shuang Yang; Fengzhong Dong
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Paper Abstract

Spatial resolution determines the minimum space unit that a distributed temperature sensor system can distinguish along the fiber thus it is an important parameter to evaluate the performance of the distributed temperature sensor system. A typical distributed temperature sensor system with a spatial resolution of 5m is built and an algorithm of linear fitting correction is proposed to realize temperature measurement of fiber length shorter than 5m accurately. With the method of linear fitting correction, the spatial resolution of the distributed temperature sensor system has been improved from 5m to 1m. The measured temperature of the DTS system is well calibrated by using linear fitting correction algorithm with a fiber length of 4m, 3m, 2m and 1m respectively. The maximum error of the corrective temperature is 2℃ for long term measurement.

Paper Details

Date Published: 8 October 2015
PDF: 5 pages
Proc. SPIE 9679, AOPC 2015: Optical Fiber Sensors and Applications, 967904 (8 October 2015); doi: 10.1117/12.2197008
Show Author Affiliations
Miao Sun, Anhui Institute of Optics and Fine Mechanics (China)
Univ. of Science and Technology of China (China)
Yuquan Tang, Anhui Institute of Optics and Fine Mechanics (China)
Jun Li, Anhui Institute of Optics and Fine Mechanics (China)
Shuang Yang, Anhui Institute of Optics and Fine Mechanics (China)
Fengzhong Dong, Anhui Institute of Optics and Fine Mechanics (China)
Univ. of Science and Technology of China (China)


Published in SPIE Proceedings Vol. 9679:
AOPC 2015: Optical Fiber Sensors and Applications
Yanbiao Liao; Weixu Zhang; Desheng Jiang; Wei Wang; Gilberto Brambilla, Editor(s)

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