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光纤局部放电超声传感系统的相位稳定性控制

Phase Stability Control of Optical Fiber Partial Discharge Ultrasonic Sensing System.

作者信息

Xing Chao, Zang Qian, He Ruidong, Zhao Jun, Wang Lili, Dai Lujian, Shi Rongbin, Wang Sihan, Ma Guoming

机构信息

State Grid Hebei Electric Power Co., Ltd., Electric Power Research Institute, Shijiazhuang 310014, China.

State Grid Hebei Electric Power Co., Ltd., Shijiazhuang 310014, China.

出版信息

Sensors (Basel). 2022 Nov 4;22(21):8495. doi: 10.3390/s22218495.

DOI:10.3390/s22218495
PMID:36366207
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9658637/
Abstract

Optic fiber interferometers are highly sensitive ultrasonic sensors for partial discharge detection. However, low-frequency vibration and environmental noise will disturb the sensors in the field, and cause a phase fading suppression effect that reduces sensitivity. This paper analyzed the problems existing in the phase feedback control system based on PZT, and an improved scheme incorporating a high-frequency carrier phase demodulation is proposed. Based on an acousto-optic modulator, the proposed phase feedback control system overcomes the phase fading suppression effect. A test is carried out on an ultrasonic calibration platform and a transformer oil discharge platform. The test results show that the stability of the improved phase demodulation system has been significantly improved, and meets the requirements of field applications. Compared with the signal-to-noise ratio at the time of phase fading of the system before the improvement, the signal-to-noise ratio of the improved system is improved by 69 dB.

摘要

光纤干涉仪是用于局部放电检测的高灵敏度超声传感器。然而，低频振动和环境噪声会在现场干扰传感器，并产生相位衰落抑制效应，降低灵敏度。本文分析了基于压电陶瓷（PZT）的相位反馈控制系统存在的问题，并提出了一种结合高频载波相位解调的改进方案。基于声光调制器，所提出的相位反馈控制系统克服了相位衰落抑制效应。在超声校准平台和变压器油放电平台上进行了测试。测试结果表明，改进后的相位解调系统的稳定性得到了显著提高，满足现场应用的要求。与改进前系统相位衰落时的信噪比相比，改进后系统的信噪比提高了69 dB。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6def/9658637/e2d8ef62207f/sensors-22-08495-g012.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6def/9658637/5b2d008fb290/sensors-22-08495-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6def/9658637/4a7a9873fd92/sensors-22-08495-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6def/9658637/4de7164e938d/sensors-22-08495-g008.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6def/9658637/e46bbb232036/sensors-22-08495-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6def/9658637/e2d8ef62207f/sensors-22-08495-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6def/9658637/a6d4e52fe555/sensors-22-08495-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6def/9658637/05b136ba320b/sensors-22-08495-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6def/9658637/147bfa62a939/sensors-22-08495-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6def/9658637/b9ce38249f78/sensors-22-08495-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6def/9658637/e56c5a2a8c21/sensors-22-08495-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6def/9658637/5b2d008fb290/sensors-22-08495-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6def/9658637/4a7a9873fd92/sensors-22-08495-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6def/9658637/4de7164e938d/sensors-22-08495-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6def/9658637/6ff5c8d394b9/sensors-22-08495-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6def/9658637/f663bf2b853a/sensors-22-08495-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6def/9658637/e46bbb232036/sensors-22-08495-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6def/9658637/e2d8ef62207f/sensors-22-08495-g012.jpg

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本文引用的文献

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Optical Fiber Sensors for Ultrasonic Structural Health Monitoring: A Review.光纤传感器在超声结构健康监测中的应用：综述。
Sensors (Basel). 2021 Nov 4;21(21):7345. doi: 10.3390/s21217345.
3
A Fiber-Optic Sensor for Acoustic Emission Detection in a High Voltage Cable System.一种用于高压电缆系统声发射检测的光纤传感器。
Sensors (Basel). 2016 Nov 30;16(12):2026. doi: 10.3390/s16122026.
4
Improved synthetic-heterodyne Michelson interferometer vibrometer using phase and gain control feedback.采用相位和增益控制反馈的改进型合成外差迈克尔逊干涉仪振动计
Appl Opt. 2015 Dec 10;54(35):10418-24. doi: 10.1364/AO.54.010418.