| 匹配光栅解调的传感器 |
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| 引用本文： | 罗映祥,余重秀,颜玢玢,张志国,李海军. 匹配光栅解调的传感器[J]. 激光与光电子学进展, 2006, 43(5): 47-50 |
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| 作者姓名： | 罗映祥 余重秀 颜玢玢 张志国 李海军 |
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| 作者单位： | 重庆三峡学院电子工程系,万州,404000;北京邮电大学电子工程学院,北京,100876 |
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| 摘 要： | 介绍了匹配光纤布拉格光栅解调的基本原理，对采用此解调方法的传感器系统的参数进行了测试，并对系统进行定标。通过改进电路设计，检测极值点附近的对称点，提高了检测的精度。估算了系统的分辨率，温度分辨率为0．25℃，应变分辨率为2．07με。该系统具有结构简单、成本低、抗干扰能力强等特点。
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| 关 键 词： | 光纤光栅 传感器 解调 分辨率 |
| 收稿时间： | 2005-11-15 |
| 修稿时间： | 2005-11-152006-02-17 |
Sensor Based on Demodulation by Matched Fiber Grating |
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| LUO Yingxiang,YU Chongxiu,YAN Binbin,ZHANG Zhiguo,LI Haijun. Sensor Based on Demodulation by Matched Fiber Grating[J]. Laser & Optoelectronics Progress, 2006, 43(5): 47-50 |
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| Authors: | LUO Yingxiang YU Chongxiu YAN Binbin ZHANG Zhiguo LI Haijun |
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| Affiliation: | 1. Department of Electronics Engineering, Chongqing Three Gorges College, Wanzhou 404000;2. Electronic Engineering School,Beijing University of Posts and Telecommunications, Beijing 100876 |
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| Abstract: | The basic principle of the matched fiber Bragg grating demodulation method is introduced. Parameters of the sensing system with the demodulation method are tested, and the system is calibrated. By modifying design of the electronic circuit in the demodulation system, which detects the symmetrical points near the extreme point, the measuring resolution is improved. The resolution of the sensing system is estimated, which is 0.25℃ for the temperature and 2.07me for the strain. This system has some notable advantages, such as simple structure, low cost, insensitive to external environment and so on. |
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| Keywords: | fiber Bragg grating sensor demodulation resolution |
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