8 October 2015 Study on spatial resolution improvement of distributed temperature sensor system by linear fitting algorithm
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Proceedings Volume 9679, AOPC 2015: Optical Fiber Sensors and Applications; 967904 (2015) https://doi.org/10.1117/12.2197008
Event: Applied Optics and Photonics China (AOPC2015), 2015, Beijing, China
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.
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Miao Sun, Miao Sun, Yuquan Tang, Yuquan Tang, Jun Li, Jun Li, Shuang Yang, Shuang Yang, Fengzhong Dong, Fengzhong Dong, } "Study on spatial resolution improvement of distributed temperature sensor system by linear fitting algorithm", Proc. SPIE 9679, AOPC 2015: Optical Fiber Sensors and Applications, 967904 (8 October 2015); doi: 10.1117/12.2197008; https://doi.org/10.1117/12.2197008
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