基于光纤光栅的加速度传感系统研究
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摘要
提出了一种基于匹配光栅解调技术的加速度检测系统,有效地消除了光源功率变化对信号的影响。在传感器的设计上将传感光栅和参考光栅置于同一环境下,消除了温度对系统的影响,通过试验得到了传感器的频率特性和加速度响应,在实际工程应用中检测到了井下微震信号。
In this paper,the principle of acceleration measurement by FBG is introduced;matched fiber Bragg gratings(FBG) is adopted as demodulation scheme and a measurement system is proposed as well.The design of putting sensing grating and matching grating together could excludes the influence of temperature drift;the data of frequency character and acceleration response of the sensor are received by the experimental result and real coalmine seismic data is also obtained in project application.
In this paper,the principle of acceleration measurement by FBG is introduced;matched fiber Bragg gratings(FBG) is adopted as demodulation scheme and a measurement system is proposed as well.The design of putting sensing grating and matching grating together could excludes the influence of temperature drift;the data of frequency character and acceleration response of the sensor are received by the experimental result and real coalmine seismic data is also obtained in project application.
引文
[1]余俊.光纤光栅地震检波器研究[J].石油仪器,2004,18(6):23-25.
[2]陈海全,谢剑.美国公路桥梁抗震初步评定方法及实例[J].山东建筑大学学报,2008,23(1):56-57.
[3]黄昱,刘洪兵,张春燕,等.结构多维地震激励振动特性研究[J].山东建筑大学学报,2006,21(5):396-400.
[4]孙腾阁,朱彤,杨广辉,等.土木工程结构健康监测的现状及发展[J].山东建筑工程学院学报,2006,21(1):81-85.
[5]王敏,乔学光,贾振安,等.光纤布喇格光栅传感系统信号解调技术研究[J].激光与光电子学进展,2004,41(12):54-58.
[6]李宏男,李东升,赵柏东.光纤健康监测方法在土木工程中的研究与应用进展[J].地震工程与工程振动,2002,22(6):76-83.
[7]盛秋琴,施可彬,高立模.光纤光栅振动传感的匹配检测方法研究[J].光学学报,2002,22(7):847-851.
[2]陈海全,谢剑.美国公路桥梁抗震初步评定方法及实例[J].山东建筑大学学报,2008,23(1):56-57.
[3]黄昱,刘洪兵,张春燕,等.结构多维地震激励振动特性研究[J].山东建筑大学学报,2006,21(5):396-400.
[4]孙腾阁,朱彤,杨广辉,等.土木工程结构健康监测的现状及发展[J].山东建筑工程学院学报,2006,21(1):81-85.
[5]王敏,乔学光,贾振安,等.光纤布喇格光栅传感系统信号解调技术研究[J].激光与光电子学进展,2004,41(12):54-58.
[6]李宏男,李东升,赵柏东.光纤健康监测方法在土木工程中的研究与应用进展[J].地震工程与工程振动,2002,22(6):76-83.
[7]盛秋琴,施可彬,高立模.光纤光栅振动传感的匹配检测方法研究[J].光学学报,2002,22(7):847-851.