Distributed acoustic sensing based on interferometry of phase opticaltime-domain reflectometry

摘要：

　　We demonstrate the design and characterization of a distributed optical fiber sensing system based on Michelson interferometer associated with the phase sensitive optical time domain reflectometer (ψ-OTDR) for acoustic measurement.Phase, amplitude, frequency response and location information can be directly obtained at the same time by using the passive 3×3 coupler demodulation.In order to simulate sound profiles of seismic or hydroacoustic imaging, experiments on detection of multiple piezoelectric transducers (PZT) are carried out.The result shows that our system can well recreate the different acoustic sources with different intensities.

关键词： Distributed fiber sensing Rayleigh backscattering Optical time domain reflectometry Interferometry

作者: Chen Wang Ying Shang Xiaohui Liu Chang Wang Gangding Peng

作者单位: Shandong Provincial Key Laboratory of Optical Fiber Sensing Technologies, Laser Institute of Shandon School of Electrical Engineering & Telecommunications, The University of New South Wales, NSW, 2052,

会议类型: 国内会议

会议名称: 光纤和光电子传感器及其安全应用国际会议(OFSIS2015)

会议地点: 济南

会议语种:英文

页码: 256-260

在线出版日期: 2015-01-20（万方平台首次上网日期，不代表论文的发表时间）