Study on spatial resolution improvement of distributed temperature sensor system by linear fitting algorithm

被引：4

作者：

Sun, Miao ^{[1
,2
]}

Tang, Yuquan ^{[1
]}

Li, Jun ^{[1
]}

Yang, Shuang ^{[1
]}

Dong, Fengzhong ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Anhui Prov Key Lab Photon Devices & Mat, Hefei 230031, Peoples R China

[2] Univ Sci & Technol China, Hefei 230029, Peoples R China

来源：

AOPC 2015: OPTICAL FIBER SENSORS AND APPLICATIONS | 2015年 / 9679卷

关键词：

distributed temperature sensor system; spatial resolution; linear fitting algorithm;

D O I：

10.1117/12.2197008

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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 degrees C for long term measurement.

引用

页数：5

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