| 用光纤光栅的啁啾效应实现温度不敏感的位移传感 |
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| 引用本文： | 黄勇林,童峥嵘,项阳,许兆文,开桂云,董孝义.用光纤光栅的啁啾效应实现温度不敏感的位移传感[J].中国激光,2002,29(11):1015-1018. |
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| 作者姓名： | 黄勇林 童峥嵘 项阳 许兆文 开桂云 董孝义 |
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| 作者单位： | 南开大学现代光学研究所,天津,300071 |
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| 基金项目： | 国家自然科学基金(编号:60077012,69977006)资助项目 |
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| 摘 要： | 将均匀周期光纤布拉格光栅斜向粘贴于矩形悬臂梁的侧面,通过调节弹性梁自由端的位移,使其产生啁啾,利用光纤光栅的啁啾效应,实现了温度不敏感的位移传感。由于传感量为光纤光栅的带宽,有效地解决了温度交叉敏感问题,在位移传感实验中获得了很好的线性响应度。
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| 关 键 词： | 光纤光栅 位移传感 啁啾效应 温度不敏感 |
| 收稿时间： | 2001/7/24 |
Temperature-insensitive Displacement Sensing Using the Chirp Effect of Fiber Bragg Grating |
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| HUANG Yong-lin,TONG Zheng-rong,XIANG Yang,XU Zhao-wen,KAI Gui-yun,DONG Xiao-yi.Temperature-insensitive Displacement Sensing Using the Chirp Effect of Fiber Bragg Grating[J].Chinese Journal of Lasers,2002,29(11):1015-1018. |
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| Authors: | HUANG Yong-lin TONG Zheng-rong XIANG Yang XU Zhao-wen KAI Gui-yun DONG Xiao-yi |
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| Abstract: | A fiber Bragg grating is slantingly bonded to the side of the rectangle cantilever beam, and the chirp effect of the grating would appear by adjusting the displacement of the beam's free end. The displacement sensing using the chirp effect of fiber Bragg grating under strain-gradient is demonstrated in this paper. Because the bandwidth of the grating is temperature-insensitive, the cross talk between displacement and temperature is avoided. The good linear response has been obtained. |
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| Keywords: | fiber Bragg grating displacement sensing chirp effect temperature-insensitive |
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