| 光纤Bragg光栅在动态应变测量中的研究 |
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| 引用本文： | 李丽、,林玉池,沈小燕付鲁华王为.光纤Bragg光栅在动态应变测量中的研究[J].传感技术学报,2007,20(5):994-997. |
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| 作者姓名： | 李丽、 林玉池 沈小燕付鲁华王为 |
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| 作者单位： | 1. 天津大学精密测试技术及仪器国家重点实验室,天津,300072;天津理工大学自动化与能源工程学院,天津,300191
2. 天津大学精密测试技术及仪器国家重点实验室,天津,300072 |
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| 基金项目： | 高等学校博士学科点专项科研项目 |
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| 摘 要： | 为了将光纤光栅的传感特性应用于结构健康监测和高频应力作用下的材料力学性能测试中,对光纤光栅动态应变传感的测量进行了研究.设计了基于相位载波(PGC)零差法的非平衡Mach-Zender干涉解调系统,并对相位载波解调技术进行了分析.通过对比冲击实验和频谱分析,实验结果证明该检测方法有效可行,可以得到稳定的测量信号,系统在10 kHz的频率范围内有良好的频率响应.
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| 关 键 词： | 光纤光栅 干涉解调 相位载波零差法 动态应变 |
| 文章编号： | 1004-1699（2007）05-0994-04 |
| 收稿时间： | 2006-08-22 |
| 修稿时间： | 2006-08-29 |
Fiber Bragg Grating Sensor System for Dynamic Strain Measurement |
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| LI Li,LIN Yu-chi,SHEN Xiao-yan,FU Lu-hua,WANG Wei.Fiber Bragg Grating Sensor System for Dynamic Strain Measurement[J].Journal of Transduction Technology,2007,20(5):994-997. |
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| Authors: | LI Li LIN Yu-chi SHEN Xiao-yan FU Lu-hua WANG Wei |
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| Affiliation: | 1. State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China ; School of Automation and Energy, Tianjin University of Technology, Tianjin 300191, China |
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| Abstract: | The aim of this experiment is to apply the fiber Bragg grating sensor to structure health monitoring and testing mechanical characteristics of materials under high frequency stress load,this paper describes a fiber Bragg grating(FBG)sensing system for dynamic strain measurement.An unbalanced Mach-Zehnder(M-Z)interferometric demodulation system is introduced based on the phase generated carrier homodyne technique which is theoretical analysised.By mean of contrast experiment and spectral analysis,the experiment result demonstrates that this system can get steady analog signal and has good frequency response within 10 kHz. |
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| Keywords: | Fiber Bragg Grating interferometric demodulation phase generated carrier homodyne technique dynamic strain |
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