FENG Yuxiang; WANG Yuchen; TONG Jiahuan; LYU Lidong

doi:10.7498/aps.74.20241652

Abstract

Distributed optical fiber temperature measurement system is widely used in the fields of substation, power cable, natural gas transmission pipeline and other temperature measurement systems. It can continuously measure the temperature information at each location along the sensing direction. Raman distributed optical fiber temperature measurement system demodulates the temperature information based on Raman Stokes scattered light and anti-Stokes scattered light power, and the Raman scattering light power directly affects the temperature measurement accuracy. So, it is a challenging task to control the hardware of the system to ensure the feasiblity of the Raman sacttering signals. The laser pulse power, and the gain of avalanche photodetector may vary randomly in the system, resulting in fluctuations in the acquired Raman scattered light power data. Therefore, a scheme of Raman distributed fiber temperature measurement system based on dynamic calibration is proposed in this work, and by setting up the temperature calibration unit and combining the proposed power correction algorithm and previous calibration data, the Raman Stokes scattering light and Raman anti-Stokes scattering light power are calibrated at the same laser pulse power level and avalanche photodetector gain, thereby improving the temperature measurement accuracy of the system. For the performance demonstration of the new scheme, the experimental system adopts 50-ns laser pulse to carry out temperature measurement experiments with a 4.6-km long single-mode fiber. The results show that in the temperature measurement range from 35 ℃ to 95 ℃, based on the traditional temperature demodulation algorithm, the temperature deviation measured is in the range from –5.8 ℃ to 1.0 ℃, and the root mean square error is 4.0 ℃, and by the dynamic calibration algorithm, the deviation of deviation measured is within –0.8 ℃ to 0.9 ℃ and the root mean square error is 0.5 ℃. Therefore, the novel Raman-type distributed optical fiber temperature measurement system proposed in this work has the function to dynamically correct the Raman-type scattered light power to suppress the influence caused by instability of the key devices such as pulsed laser and avalanche photodetector and improve the temperature measurement accuracy, which is valuable in practical engineering applications.

Keywords:

Authors and contacts

Corresponding author: LYU Lidong, lvlidong@ahut.edu.cn

Funds: Project supported by the National Natural Science Foundation of China (Grant No. 51977001).

FullText HTML

References

[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]
[16]
[17]
[18]
[19]
[20]
[21]
[22]
[23]
[24]
[25]
[26]

Cited By

DownLoad: Full-Size Img PowerPoint

实际温度/℃	测得温度/℃	误差/℃
35.0	36.0	+1.0
45.0	43.0	–2.0
55.0	50.4	–4.6
65.0	64.1	–0.9
75.0	69.6	–5.4
85.0	80.2	–4.8
95.0	89.2	–5.8

DownLoad: CSV

实际温度/℃	测得温度/℃	比值H₁	比值H₂	误差/℃
35.0	35.4	1.0180	1.0150	+0.4
45.0	45.3	1.0100	1.0225	+0.3
55.0	54.6	1.0141	1.0350	–0.4
65.0	64.2	1.0365	1.0366	–0.8
75.0	75.2	1.0204	1.0443	+0.2
85.0	85.9	1.0250	1.0478	+0.9
95.0	95.5	1.0263	1.0500	+0.5

DownLoad: CSV

map

[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]
[16]
[17]
[18]
[19]
[20]
[21]
[22]
[23]
[24]
[25]
[26]

[1]	Sun Miao, Yang Shuang, Tang Yu-Quan, Zhao Xiao-Hu, Zhang Zhi-Rong, Zhuang Fei-Yu. Distributed fiber optic temperature sensor based on dynamic calibration of Raman Stokes backscattering light intensity. Acta Physica Sinica, 2022, 71(20): 200701. doi: 10.7498/aps.71.20220611
[2]	Yang Yu-Lian, Liu Li-Ming, Deng Qing-Xue, Jia Xin-Hong, Liang Wen-Yan, Jiang Li, Song Wei-Jie, Mou Xin-Yang. Influence of nonlinear effects on forward stimulated Brillouin scattering distributed sensing. Acta Physica Sinica, 2022, 71(15): 154206. doi: 10.7498/aps.71.20220313
[3]	Wang Ya-Hui, Zhao Le, Hu Xin-Xin, Guo Yang, Zhang Jian-Zhong, Qiao Li-Jun, Wang Tao, Gao Shao-Hua, Zhang Ming-Jiang. High-accuracy dual-slope-assisted chaotic Brillouin fiber dynamic strain measurement. Acta Physica Sinica, 2021, 70(10): 100704. doi: 10.7498/aps.70.20201892
[4]	Ma Tian-Bing, Zi Bao-Wei, Guo Yong-Cun, Ling Liu-Yi, Huang You-Rui, Jia Xiao-Fen. Distributed optical fiber temperature sensor based on self-compensation of fitting attenuation difference. Acta Physica Sinica, 2020, 69(3): 030701. doi: 10.7498/aps.69.20191456
[5]	Liu Tie-Gen, Yu Zhe Jiang, Jun-Feng, Liu Kun, Zhang Xue-Zhi, Ding Zhen-Yang, Wang Shuang, Hu Hao-Feng, Han Qun, Zhang Hong-Xia, Li Zhi-Hong. Erratum: Advances of some critical technologies in discrete and distributed optical fiber sensing research [Acta Phys. Sin. 2017, 66(7): 070705]. Acta Physica Sinica, 2017, 66(9): 099901. doi: 10.7498/aps.66.099901
[6]	Rao Yun-Jiang. Recent progress in ultra-long distributed fiber-optic sensing. Acta Physica Sinica, 2017, 66(7): 074207. doi: 10.7498/aps.66.074207
[7]	Liu Tie-Gen, Yu Zhe, Jiang Jun-Feng, Liu Kun, Zhang Xue-Zhi, Ding Zhen-Yang, Wang Shuang, Hu Hao-Feng, Han Qun, Zhang Hong-Xia, Li Zhi-Hong. Advances of some critical technologies in discrete and distributed optical fiber sensing research. Acta Physica Sinica, 2017, 66(7): 070705. doi: 10.7498/aps.66.070705
[8]	Pei Li, Wu Liang-Ying, Wang Jian-Shuai, Li Jing, Ning Ti-Gang. Phase shift chirped fiber Bragg grating based distributed strain and position sensing. Acta Physica Sinica, 2017, 66(7): 070702. doi: 10.7498/aps.66.070702
[9]	Chen Wen-Jie, Jiang Jun-Feng, Liu Kun, Wang Shuang, Ma Zhe, Zhang Wan-Chen, Liu Tie-Gen. Research on improving detection sensitivity to acoustic based on coherent-OTDR distributed fiber-sensing system. Acta Physica Sinica, 2017, 66(7): 070706. doi: 10.7498/aps.66.070706
[10]	Gui Xin, Hu Chen-Chen, Xie Ying, Li Zheng-Ying. Research on distributed intrinsic Fabry-Perot sensors. Acta Physica Sinica, 2015, 64(5): 050704. doi: 10.7498/aps.64.050704
[11]	Wang Jie, Jia Xin-Hong, Rao Yun-Jiang, Wu Hui-Juan. Phase-sensitive optical time-domain reflectometer based on bi-directional Raman amplification. Acta Physica Sinica, 2013, 62(4): 044212. doi: 10.7498/aps.62.044212
[12]	Ma Cheng-Ju, Ren Li-Yong, Tang Feng, Qu En-Shi, Xu Jin-Tao, Liang Quan, Wang Jian, Han Xu. Study on static pressure of fiber cable spool based on distributed fiber Bragg grating sensing technology. Acta Physica Sinica, 2012, 61(5): 054702. doi: 10.7498/aps.61.054702
[13]	Cheng Wei-Bin, Kang Si-Min, Wang Yue-Long, Tang Nan, Guo Ying-Na, Huo Ai-Qing. Fast-scale instability and dynamic parameter resonance of power factor correction Boost converter. Acta Physica Sinica, 2011, 60(2): 020506. doi: 10.7498/aps.60.020506
[14]	Zhang Chao, Rao Yun-Jiang, Jia Xin-Hong, Deng Kun, Chang Liang, Ran Zeng-Ling. Influence of optical simple pulse coding on the Brillouin optical time domain analyzer based on bi-directional Raman amplification. Acta Physica Sinica, 2011, 60(10): 104211. doi: 10.7498/aps.60.104211
[15]	Han Ru, Fan Xiao-Ya, Yang Yin-Tang. Temperature-dependent Raman property of n-type SiC. Acta Physica Sinica, 2010, 59(6): 4261-4266. doi: 10.7498/aps.59.4261
[16]	Zhang Chao, Rao Yun-Jiang, Jia Xin-Hong, Chang Liang, Ran Zeng-Ling. Brillouin optical time domain analyzer based on bi-directional Raman amplification. Acta Physica Sinica, 2010, 59(8): 5523-5527. doi: 10.7498/aps.59.5523
[17]	Sun Qi-Zhen, Liu De-Ming, Wang Jian. A novel ring structure-based distributed optical fiber vibration sensing system. Acta Physica Sinica, 2007, 56(10): 5903-5908. doi: 10.7498/aps.56.5903
[18]	Tong Zhi, Wei Huai, Jian Shui-Sheng. Optimal design of distributed Raman amplifiers employed in long-haul optical transmission systems. Acta Physica Sinica, 2006, 55(4): 1873-1882. doi: 10.7498/aps.55.1873
[19]	Zhang Xiao-Dan, Zhao Ying, Zhu Feng, Wei Chang-Chun, Wu Chun-Ya, Gao Yan-Tao, Hou Guo-Fu, Sun Jian, Geng Xin-Hua, Xiong Shao-Zhen. A study of Raman and optical emission spectroscopy on microcrystalline silicon films deposited by VHF-PECVD. Acta Physica Sinica, 2005, 54(1): 445-449. doi: 10.7498/aps.54.445
[20]	Zhou Xiao-Jun, Du Dong, Gong Jun-Jie. Study on spatial resolution of polarized-modes coupling distributed fiber optic sensor. Acta Physica Sinica, 2005, 54(5): 2106-2110. doi: 10.7498/aps.54.2106

Catalog

Vol. 74, Issue 7 - 2025-04-05

Metrics

Abstract views: 574
PDF Downloads: 32
Cited By: 0

姓名
邮箱
手机号码
标题
留言内容
验证码

Search

Article

留言板

Abstract

Authors and contacts

Corresponding author: LYU Lidong, lvlidong@ahut.edu.cn

FullText HTML

References

Cited By

Catalog

Metrics

Authors

Referees

About Journal

About

Search

Article

留言板

Abstract

Authors and contacts

Corresponding author: LYU Lidong, lvlidong@ahut.edu.cn

FullText HTML

References

Cited By

Catalog

Metrics

Publishing process

Authors

Referees

About Journal

About