| 基于DSP的光纤光栅应变传感器信号检测实验研究 |
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| 引用本文： | 魏康林. 基于DSP的光纤光栅应变传感器信号检测实验研究[J]. 光学与光电技术, 2007, 5(2): 31-34 |
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| 作者姓名： | 魏康林 |
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| 作者单位： | 三峡大学理学院物理系,宜昌,443002 |
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| 摘 要： | 针对光纤光栅应变传感器接收信号弱且信噪比低这一问题,提出了应用DSP技术来抑制噪声,提高Bragg峰值波长检测精度的方法.实验结果表明所设计的498阶Kaiser窗低通FIR数字滤波器能够显著提高光纤光栅应变传感器的信号检测精度.采用DSP技术可以较好地解决光纤光栅传感器的波长解调这一技术难题.
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| 关 键 词： | 光纤光栅应变传感器 信号检测 数字信号处理 线性拟合 |
| 文章编号： | 1672-3392（2007）02-0031-04 |
| 收稿时间： | 2006-10-23 |
| 修稿时间： | 2006-12-13 |
Signal Detection of Fiber Bragg Grating Strain Sensor Based on DSP |
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| WEI Kang-lin. Signal Detection of Fiber Bragg Grating Strain Sensor Based on DSP[J]. optics&optoelectronic technology, 2007, 5(2): 31-34 |
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| Authors: | WEI Kang-lin |
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| Abstract: | The fiber Bragg grating strain sensor has some disadvantages such as poor received signal intensity and the low signal-to-noise ratio. The method that can improve the detection precision of the Bragg peak wavelength is presented.The noise suppression technolgy based on DSP is applied. The experiment results show that the FIR PLF which is based on Kaiser window improves the fiber Bragg grating strain sensor's measure precision, and the DSP technology can resolve the problem of wavelength demodulation of the FBG. |
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| Keywords: | fiber Bragg grating strain sensor signal detection digital signal processing line fitting |
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