| Boxcar积分器提高光纤光栅传感器解调精度的分析 |
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| 引用本文： | 阮思旭,庄其仁,于百英.Boxcar积分器提高光纤光栅传感器解调精度的分析[J].传感器与微系统,2006,25(12):35-38. |
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| 作者姓名： | 阮思旭 庄其仁 于百英 |
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| 作者单位： | 华侨大学,信息科学与工程学院,福建,泉州,362021 |
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| 摘 要： | 阐述一种根据Boxcar积分器原理实现光纤光栅传感器B ragg波长移动的FFP精密解调原理,将FFP输出的光强-电压周期信号转换为光强度-时间周期信号,利用扫描式取样积分器得到形状与输入的被测信号相同,而周期变大的的输出波形,提高了幅值信噪比和时间分辨力,从而提高光纤光栅波长位移测量精度。
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| 关 键 词： | 光纤Bragg光栅 F-P腔解调 Boxcar积分器 |
| 文章编号： | 1000-9787（2006）12-0035-04 |
| 收稿时间： | 2006-05-20 |
| 修稿时间： | 2006年5月20日 |
Analysis of demodulation precision of fiber Bragg grating sensor with a Boxcar integrator |
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| RUAN Si-xu,ZHUANG Qi-ren,YU Bai-ying.Analysis of demodulation precision of fiber Bragg grating sensor with a Boxcar integrator[J].Transducer and Microsystem Technology,2006,25(12):35-38. |
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| Authors: | RUAN Si-xu ZHUANG Qi-ren YU Bai-ying |
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| Affiliation: | College of Information Science and Engineering, Huaqlao University, Quanzhou 362021, China |
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| Abstract: | The principle of wavelength-shift detection of fiber Bragg grating sensor is analysed based on fiber Fabry-Perot(FFP) cavity demodulation with a Boxcar integrator.The light intensity-voltage periodic signals of the FFP's output are converted to light intensity-time periodic signals.With a Boxcar integrator,output signals whose waveform are similar to the input waveform but the periods are lengthened is obtaihed,the signal-to-noise ratio(SNR) and time resolution are advanced,and the detection precision of wavelength shift is improved. |
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| Keywords: | fiber Bragg grating(FBG) F-P cavity demodulation Boxcar integrator |
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