| 光谱吸收型光纤气体传感器及解调系统 |
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| 引用本文： | 李建兴,柏俊杰,冉昌艳.光谱吸收型光纤气体传感器及解调系统[J].福建建筑高等专科学校学报,2013(3):261-264. |
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| 作者姓名： | 李建兴 柏俊杰 冉昌艳 |
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| 作者单位： | [1]福建工程学院信息科学与工程学院,福建福州350118 [2]重庆科技学院电气与信息工程学院重庆410331;东南大学仪器科学与工程学院,江苏南京210096 |
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| 基金项目： | 国家自然基金资助项目（NO.51105398）;福建省自然科学基金项目（NO.2012D069）;福建省资助省属高校科研专项计划项目（NO.JK2011038） |
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| 摘 要： | 基于光谱吸收型气体传感器的传感机理,搭建了实验平台,研究了基于一、二次谐波幅度比值法实现气体浓度检测的可行性,设计了一种新型的光纤气体传感器;基于32位嵌入式软核处理器NiosⅡ和FPGA技术设计了光纤气体传感器的解调系统.实验结果表明,该光纤气体传感器及其解调系统具有易维护、高速、高分辨率、高精度等优点.
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| 关 键 词： | 光纤气体传感器 谐波检测 解调系统 软核处理器Nios Ⅱ |
A new type of optical fiber gas sensor and demodulation system |
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| Li Jianxing,Bai Junjie,Ran Changyan.A new type of optical fiber gas sensor and demodulation system[J].Journal of Fujian College of Architecture & C.E.,2013(3):261-264. |
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| Authors: | Li Jianxing Bai Junjie Ran Changyan |
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| Affiliation: | 1. School of Information Science and Engineering, Fujian University of Technology, Fuzhou 350118, China; 2. College of Electrical and Information Engineering, Chongqing University of Science and Technology, Chongqing 401331, China; 3. College of Instrument Science and Engineering, Southeast University, Nanjing 210096, China) |
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| Abstract: | Based on the sensing principle of spectrum absorptive gas sensors, an experimental platform was built to study the feasibility of the method of detecting gas concentration using the first and second harmonic amplitude ratio method. A new type of optical fiber gas sensor was designed. Based on 32-bit embedded soft-core processors NiosⅡ and FPGA technique, a fiber-optic gas sensor demodulation system was designed. Experimental results show that the fiber-optic gas sensors and demodulation system are easy to maintain with high-speed, high-resolution and high accuracy. |
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| Keywords: | optical fiber gas sensor harmonic measurement demodulation system soft-core processors Nios Ⅱ |
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