| 环境监测用多参数光纤化学传感技术研究 |
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| 引用本文： | 范世福,陈莉,肖松山,李彦芳,欧国荣.环境监测用多参数光纤化学传感技术研究[J].环境科学学报,1999,19(2):200-204. |
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| 作者姓名： | 范世福 陈莉 肖松山 李彦芳 欧国荣 |
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| 作者单位： | 天津大学生物医学工程与科学仪器系,天津,300072 |
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| 摘 要： | 采用发光二极管、光导纤维和硅光电二级管检测器研制成可供环境水ｐＨ值和大气中ＳＯ２、ＮＨ３检测的光纤多参数传感系统．仪器对ｐＨ值的响应可低达００１ｐＨ，对水中ＮＨ４＋的检测限为２×１０－６ｍｏｌ／Ｌ，ＳＯ３２－的检测限为２×１０－４ｍｏｌ／Ｌ；仪器体积小，可用电池供电、便于野外监测，检测准确、稳定，成本低廉．
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| 关 键 词： | 光纤传感器 光电二极管 双光路补偿 |
| 收稿时间： | 1997/4/21 0:00:00 |
| 修稿时间： | 1997/11/10 0:00:00 |
Research on multi parameter environmental sensing technique based on optical fiber |
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| FAN Shifu,CHEN Li,XIAO Songshan,LI YANfang and OU Guorong.Research on multi parameter environmental sensing technique based on optical fiber[J].Acta Scientiae Circumstantiae,1999,19(2):200-204. |
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| Authors: | FAN Shifu CHEN Li XIAO Songshan LI YANfang and OU Guorong |
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| Institution: | Dept.of Biomedi. Eng. and Scient. Instra.Tianjin University, Tianjin 300072,Dept.of Biomedi. Eng. and Scient. Instra.Tianjin University, Tianjin 300072,Dept.of Biomedi. Eng. and Scient. Instra.Tianjin University, Tianjin 300072,Dept.of Biomedi. Eng. and Scient. Instra.Tianjin University, Tianjin 300072 and Dept.of Biomedi. Eng. and Scient. Instra.Tianjin University, Tianjin 300072 |
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| Abstract: | A new optical fiber sensing system for pH in water,SO2 and NH3 in air monitoring was designed and developed.It consists of LED sources,optical fiber and silicon photodiode detector.The responsibility of the system for pH is 0.01 unit,the detective limits for 4+ in water is 2×10-6mol/L, and for SO32- is 2×10-4 mol/L.The system is compacts and can be powered with battery and used for filed monitoring. |
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| Keywords: | optical fiber sensor photodiode double beam compensation |
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