A Dual-Parameter Fusion Distributed Optical Fiber Sensor System for Oil and Gas Pipeline Monitoring

• 作者: Baoji Li Hongliang Wu Yangquan Xie Zhiyong Dai
• 来源期刊: 应用数学与应用物理(英文)
• 学科: 工学
• 关键词: Oil and Gas Pipeline MONITORING LEAKAGE MONITORING Dual-Parameter Opti-cal Fiber Sensor CCPONS Code
• 年，卷（期）: 2019,（11）
• 页码范围: 2909-2916
• 页数: 8页
• 分类号: TN2

摘要

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.