| 基于数字信号处理器的激光光谱瓦斯监测系统 |
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| 引用本文： | 王仁宝.基于数字信号处理器的激光光谱瓦斯监测系统[J].上海电力学院学报,2010(1):38-41. |
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| 作者姓名： | 王仁宝 |
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| 作者单位： | 安徽理工大学电气工程系; |
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| 基金项目： | 安徽理工大学青年教师科学研究基金资助(校科技[2008]25号) |
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| 摘 要： | 利用可调谐二极管激光吸收光谱(TDLAS)技术,选择不受干扰的1653.72nm波长处的吸收线监测煤矿瓦斯浓度,并结合了高性能的数字信号处理器(DSP)和二次谐波检测技术,进一步降低了检测限,使检测限低于0.074mg/m3,实现了对瓦斯浓度高稳定性和高灵敏度的实时测量。
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| 关 键 词： | 可调谐二极管激光吸收光谱（TDLAS） 数字信号处理器（DSP） 二次谐波检测 瓦斯 |
Laser absorption spectrometer methane detection system based on digital signal processor |
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| WANG Ren-bao.Laser absorption spectrometer methane detection system based on digital signal processor[J].Journal of Shanghai University of Electric Power,2010(1):38-41. |
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| Authors: | WANG Ren-bao |
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| Affiliation: | Department of Electrical Engineering;Anhui University of Science and Technology;Huainan 232001;China; |
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| Abstract: | By using the tunable diode laser absorption spectroscopy(TDLAS) technology the absorption line of methane at the wavelength of 1 653.72 nm is found to be free of interference and suitable for the measurement of coal mine methane.The high performance microcontroller(DSP) and second harmonic detection are used to lower the detection limit further that is below 0.074 mg/m3.It has an obvious advantage in sensitivity and stability and can achieve real-time measurement of the coal mine methane. |
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