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| 分时差分式光纤甲烷气体检测仪的研制 | |
| 引用本文： | 米新江,许爱东,王英华,李灵风.分时差分式光纤甲烷气体检测仪的研制[J].仪表技术与传感器,2003(6):12-14,19. |
| 作者姓名： | 米新江 许爱东 王英华 李灵风 |
| 作者单位： | 1. 廊坊师范学院,河北,廊坊,065000 2. 河北半导体研究所,河北,石家庄,050051 3. 新疆特变电工股份有限公司,新疆,昌吉,831100 4. 燕山大学成人教育学院,河北,秦皇岛,066004 |
| 摘 要： | 基于甲烷气体的吸收光谱特性，研制了一种用低廉LED作光源的新型分时差分式光纤甲烷气体检测仪。光源LED自动实行交替斩波，波长切换机构的灵巧设计可以用单光路实现差分吸收浓度检测，消除了双光路的差异。理论和实验表明，该结构既可以简化设计，又可有效抑制信号检测与传输中的同性干扰。 |
| 关 键 词： | 分时差分光吸收 甲烷 检测仪 光纤传感器 研制 |
| 文章编号： | 1002-1841(2003)06-0012-03 |
Study on Time - Sharing Difference Absorption Optical Fiber CH4 Sensor |
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| Mi Xinjiang,Xu Aidong,Wang Yinghua,Li Lingfeng.Study on Time - Sharing Difference Absorption Optical Fiber CH4 Sensor[J].Instrument Technique and Sensor,2003(6):12-14,19. | |
| Authors: | Mi Xinjiang Xu Aidong Wang Yinghua Li Lingfeng |
| Abstract: | Based on the CH4 absorption spectrum, a novel kind of transmission-type optical fiber CH4 detector with the low-cost illuminant of LED (automatically alternate chopped) is presented in this paper. Time-sharing difference absorption signal is realized by a smart design. The theory and experiments show that the sensor with optical fiber is simple for design, sufficient to suppress the interference and the variant from the double beam path. |
| Keywords: | Optical Fiber CH4 Time-Sharing Processing Difference Photo- Absorption Sensors |
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