At present, the Brillouin Optical Time Domain Reflectometer (BOTDR) sensor has been widely used in oil and gas pipeline monitoring and maintenance, and the ability to resist cross-interference is weak for the BOTDR sensor system, and it cannot process interference data at the same time. A Polarized Optical Time Domain Reflectometer (POTDR) based on the polarization effect is designed, which is based on the traditional POTDR sensor system and combined with the fiber grating, by using the fiber grating to enhance the intensity of the reflected signal light, effectively improve the signal-to-noise ratio of the sensor system, make the vibration measurement more accurate, and achieve the purpose of monitoring different fault points at the same time. Solve the limitation that BOTDR can only monitor the fault point individually. The fully distributed optical fiber sensor combined with the fiber grating gets rid of the limitation that BOTDR and POTDR can only monitor a single physical quantity parameter, and can monitor multiple physical quantity parameters at the same time, and the system is low cost, stable and feasible, and can be applied to the field of oil and gas pipeline monitoring on a large scale.
Cite this paper
Li, J. , Zhang, M. and Song, S. (2022). Development and Application of Distributed Optical Fiber Instruments. Open Access Library Journal, 9, e9552. doi: http://dx.doi.org/10.4236/oalib.1109552.
Yan, S.Z. and Chyan, L.S. (2010) Performance Enhancement of BOTDR Fiber Optic Sensor for Oil and Gas Pipeline Monitoring. Optical Fiber Technology, 16, 100-109.
https://doi.org/10.1016/j.yofte.2010.01.001
Chen, M.M., Wang, F., Zhang, Y.X., et al. (2018) Measurement of Multiple Vibration Points by Using POTDR. International Conference on Optical Instruments and Technology, Vol. 10618, Article ID: 1061803.
Hu, J.T., Wang, X.C. and Pan, S.L. (2018) Application of the Probe Pulse with Ergodic SOPs in Detecting Multi-Vibrations Using POTDR. International Conference on Optical Instruments and Technology, Vol. 10618, Article ID: 1061805.
Wang, X.C., Zhang, X.P., Wang, F., et al. (2011) Application of Frequency Spectrum Analysis in Measuring Multi-Vibrations by Using POTDR. International Conference on Optical Instruments and Technology, Vol. 8198, Article ID: 819808.
https://doi.org/10.1117/12.910376
Sun, Q.Z. (2008) Research and Application of Distributed Optical Fiber Sensing and Information Processing Technology. Ph.D. Thesis, Huazhong University of Science and Technology, Wuhan.
Zhao, X.F., Lu, J. and Wang, Y.H. (2010) Experimental Study of a BOTDR Fiber Optic Temperature Sensor. Journal of Disaster Prevention and Mitigation Engineering, 30, 247-250.
Zhao, L.J. and Li, Y.Q. (2015) Fast Extraction of Temperature Features of BOTDR System Based on Wavelet Transform. Electrical Measurement and Instrumentation, 52, 19-23.
Su, Y., Zhao, C., Long, X., et al. (2013) Distributed Generation Application in the Rural Areas of West China. Energy & Power Engineering, 5, 167-170.
https://doi.org/10.4236/epe.2013.54B032
Li, J.H., Wang, R., Xu, Z.Y., et al. (2007) A New Direct Detection BOTDR System with Wavelet Transform Application. Proceedings of the 13th National Conference on Fiber Optic Communication and 14th Academic Conference on Integrated Optics, 349-353.
Yang, F., Tang, S.-L., Yin, W.-G., et al. (2022) Analysis of Wind Vibration Monitoring of Overhead Transmission Lines Based on Multiparameter Distributed Fiber Optic Sensing. Power System Protection and Control, 50, 169-177.
Yin, G.L., Jiang, R., Xu, Z., et al. (2022) Fast, High Spatial Resolution Distributed Fiber Optic Sensing Technology and Its Application to Mechanical Deformation and Temperature Monitoring. Journal of Mechanical Engineering, 58, 96-104.
Jiang, T.W., Wang, S.J., Zhu, S.B., et al. (2022) Experimental Research and Application of Distributed Optical Fiber Acoustic Sensing System in Downhole Fault Activity Monitoring in Developed Gas Fields in Western China. Progress in Geophysics, 37, 1960-1968.
He, J. and Wang, E.W. (2017) A Polarized Optical Time-Domain Reflection Fiber Optic Vibration Sensing System Based on Coherent Detection. Journal of Sensing Technology, 30, 1017-1021.
