TITLE:
A Dual-Parameter Fusion Distributed Optical Fiber Sensor System for Oil and Gas Pipeline Monitoring
AUTHORS:
Baoji Li, Hongliang Wu, Yangquan Xie, Zhiyong Dai
KEYWORDS:
Oil and Gas Pipeline Monitoring, Leakage Monitoring, Dual-Parameter, Opti-cal Fiber Sensor, CCPONS Code
JOURNAL NAME:
Journal of Applied Mathematics and Physics,
Vol.7 No.11,
November
27,
2019
ABSTRACT: For oil and gas pipeline monitoring applications, this paper proposed a dual-parameter fusion distributed fiber optic sensor system that enables distributed temperature and distributed vibration measurements in a single fiber. Through the fiber-scattering spectrum time domain detection combined with coded pulse sequence and Raman scattering spectrum is obtained, which realizes high-resolution temperature measurement and wide-band vibrational wave measurement. The experimental results show that, on 10 km optical fiber measurement, temperature resolution up to 0.1?C and vibration response frequency range 20 Hz - 5 kHz. This sensing system achieves temperature and vibration dual-parameter measurements with fiber optics, greatly simplifying the system and facilitating installation and it can be widely used in oil and gas pipeline monitoring.