| 吸收光谱式光纤瓦斯传感器检测电路及其波形分析 |
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| 引用本文： | 聂晓华,姜建国. 吸收光谱式光纤瓦斯传感器检测电路及其波形分析[J]. 淮海工学院学报, 2002, 0(2) |
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| 作者姓名： | 聂晓华 姜建国 |
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| 作者单位： | 中国矿业大学信电学院 江苏徐州221008(聂晓华)，中国矿业大学信电学院 江苏徐州221008(姜建国) |
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| 摘 要： | 根据吸收光谱式光纤瓦斯传感器的设计原理及参数,设计并实现了光电微弱信号的检测电路,并对该电路的检测波形进行了数学分析.该电路的核心是锁相放大器.前置放大使用了仪用放大器AD620,和国产的发射、接收管.该电路结构简单、实用、灵敏度高.
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| 关 键 词： | 瓦斯传感器 微弱信号 锁相放大器 波形分析 |
Measure Circuit and Wave Analysis of Absorption Spectrum Optical Fiber Gas Sensor |
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| Nie Xiaohua Jiang Jianguo. Measure Circuit and Wave Analysis of Absorption Spectrum Optical Fiber Gas Sensor[J]. Journal of Huaihai Institute of Technology:Natural Sciences Edition, 2002, 0(2) |
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| Authors: | Nie Xiaohua Jiang Jianguo |
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| Affiliation: | China University of Mining and Technology Xuzhou Jiangsu 221008 |
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| Abstract: | Based on designed principle and parameter of absorption spectrum optical fiber gas sensor,This paper designes and realizes the measure circuit of photoelectricity faintness signal, analyzes mathematically measured wave of the circuit, sets up the mathematical model of the measure circuit. The measure circuit core is lock-in amplifier, The front amplifier of the circuit is the instrument amplifier AD620. In addition, this paper uses project and receive tube made in China. |
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| Keywords: | gas sensor faintness signal lock-in amplifier wave analysis |
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