环境监测用多参数光纤化学传感技术研究  

Research on multi parameter environmental sensing technique based on optical fiber

作　　者：范世福[1] 陈莉[1] 肖松山[1] 李彦芳[1] 欧国荣[2] 

机构地区：[1]天津大学生物医学工程与科学仪器系 [2]中国军事医学科学院卫生环境医学研究所

出　　处：《环境科学学报》1999年第2期200-204,共5页Acta Scientiae Circumstantiae

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００１ｐＨ，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．A new optical fiber sensing system for pH in water,SO 2 and NH 3 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 NH 4 + in water is 2×10 -6 mol/L, and for SO 3 2- is 2×10 -4 mol/L.The system is compacts and can be powered with battery and used for filed monitoring.

关 键 词：光纤传感器 环境监测 传感器 仪器 

分 类 号：X85[环境科学与工程—环境工程]