| 光纤光栅传感器锁定放大电路的设计 |
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| 引用本文： | 曾喜娟,庄其仁.光纤光栅传感器锁定放大电路的设计[J].鞍山师范学院学报,2010,12(6):38-43. |
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| 作者姓名： | 曾喜娟 庄其仁 |
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| 作者单位： | 黎明职业大学;华侨大学信息科学与工程学院; |
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| 摘 要： | 针对光纤光栅传感器反射光信号微弱的特点,采用锁定放大器作为检测放大电路.设计了锁定放大器的硬件电路,通过PROTUS软件仿真,得到了各部分电路的仿真波形图.结果表明,设计的电路作为光纤光栅传感器的检测电路可提高系统的信噪比.
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| 关 键 词： | 带通滤波器 移相电路 相敏检测 PROTUS |
Design of Lock-in Amplification Circuit for FBG Sensor Signal Detection |
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| ZENG Xi-juan,ZHUANG Qi-ren.Design of Lock-in Amplification Circuit for FBG Sensor Signal Detection[J].Journal of Anshan Teachers College,2010,12(6):38-43. |
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| Authors: | ZENG Xi-juan ZHUANG Qi-ren |
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| Institution: | ZENG Xi-juan1,ZHUANG Qi-ren2(1.Liming Vocational University,QuanZhou FuJian 362000,China,2.College of Infor.Sci&Eng.Huaqiao University,Quanzhou Fujian 362021,China) |
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| Abstract: | According to the features of FBG sensor,a Lock-in Amplification Circuit is used for weak signal detection.Every hardware circuit is designed based on the Lock-in Amplification Circuit's structure.Then all of the circuits are simulated by the PROTUS,and the simulation waveform are given.The simulation result indicates that the system's signal-to-noise ratio is improved by adopting this design scheme. |
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| Keywords: | Band-pass filter Phase-shift circuit Phase sensitivity detection PROTUS |
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