Design of dissolved oxygen detecting system based on fluorescence lifetime method

GUO Li-quan; ZHANG Yu-jun; YIN Gao-fang; WANG Zhi-gang

doi:10.13873/j.1000-97872011.10.006

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Design of dissolved oxygen detecting system based on fluorescence lifetime method

更新时间：2025-09-11

- Design of dissolved oxygen detecting system based on fluorescence lifetime method
- Vol. 30, Issue 10, Pages: 109-111(2011)
- 作者机构：
  
  中国科学院安徽光学精密机械研究所
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872011.10.006
  CLC： X853
- Published：2011
- 稿件说明：
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[1]郭立泉,张玉钧,殷高方,王志刚.基于荧光寿命法的溶解氧检测系统设计[J].传感器与微系统,2011,30(10):109-111.

GUO Li-quan, ZHANG Yu-jun, YIN Gao-fang, et al. Design of dissolved oxygen detecting system based on fluorescence lifetime method[J]. 2011, 30(10): 109-111.
[1]郭立泉,张玉钧,殷高方,王志刚.基于荧光寿命法的溶解氧检测系统设计[J].传感器与微系统,2011,30(10):109-111. DOI： 10.13873/j.1000-97872011.10.006.

GUO Li-quan, ZHANG Yu-jun, YIN Gao-fang, et al. Design of dissolved oxygen detecting system based on fluorescence lifetime method[J]. 2011, 30(10): 109-111. DOI： 10.13873/j.1000-97872011.10.006.

摘要

依据荧光猝灭原理

分析了荧光寿命和水体溶解氧浓度的关系特性

研究了荧光寿命的锁相环检测技术

设计了基于ADuC841单片机和锁相环放大电路的新型荧光寿命法溶解氧检测系统。测量精度为0.01 mg/L

稳定性好

灵敏度高

响应时间小于30 s

并且不受外界杂散光和光源波动的影响

可实现水体溶解氧的原位、实时、在线监测。

Abstract

According to the principle of fluorescence quenching

the relation between fluorescence lifetime and concentration of dissolved oxygen is analyzed

phase locked loop（PLL）detecting technology of fluorescence lifetime is studied.A new dissolved oxygen detecting system with fluorescence lifetime method is designed based on ADuC841 SCM system and phase locked loop.The measuring precision is 0.01 mg/L

and the response time is less than 30s

with good stability and high sensitivity.It’s not influenced by environmental light and light source fluctuation.It can realize in situ

real-time and on line detection of the dissolved oxygen.

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Keywords

references

荧光寿命的正弦调制测量法及分析 [J]. 冯颖,黄世华. 光谱学与光谱分析 . 2007(12)

一种基于荧光猝灭原理的光纤氧气传感器 [J]. 姜德生,赵士威,韩蕴,越方禹,黄俊. 光学学报 . 2003(03)

锁相环（PLL）电路设计与应用[M]. 科学出版社 , (日)远坂俊昭著, 2006

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