基于荧光猝灭原理的海洋原位溶解氧传感器及定量标定算法

doi:10.3976/j.issn.1002-4026.2021.02.001

山东科学 ›› 2021, Vol. 34 ›› Issue (2): 1-10.doi: 10.3976/j.issn.1002-4026.2021.02.001

• 海洋科技与装备 • 下一篇

基于荧光猝灭原理的海洋原位溶解氧传感器及定量标定算法

袁达，冯现东，张云燕，吴丙伟

齐鲁工业大学(山东省科学院) 山东省科学院海洋仪器仪表研究所山东省海洋环境监测技术重点实验室国家海洋监测设备工程技术研究中心，山东青岛 266061

收稿日期:2020-09-18 出版日期:2021-04-13 发布日期:2021-04-13
作者简介:袁达（1988—），男，助理研究员，研究方向为海洋生态环境监测技术及仪器研制，复杂校准算法建模。E-mail: yuanda1988@126.com
基金资助:
国家重点研发计划（2016YFC1400800）；青岛市应用基础研究计划青年专项（19-6-2-26-cg）

Development of marine in situ dissolved oxygen sensor based on fluorescence quenching and its quantitative calibration algorithm

YUAN Da，FENG Xian-dong，ZHANG Yun-yan，WU Bing-wei

National Engineering and Technological Research Center of Marine Monitoring Equipment,Shandong Provincial Key Laboratory of Ocean Environmental Monitoring Technology，Institute of Oceanographic Instrumentation, Qilu University of Technology(Shandong Academy of Sciences)，Qingdao 266061, China

Received:2020-09-18 Online:2021-04-13 Published:2021-04-13

摘要/Abstract

摘要： 针对国产化海水溶解氧传感器原位准确监测的需求，采用调制-解调数字正交锁相放大检测技术研制了海水光学溶解氧传感器，实现了微弱荧光寿命的准确检测。采用多项式标定方法对溶解氧传感器进行了温度系数标定，建立了荧光相位、溶解氧浓度、温度的多项式定量算法模型，实现了溶解氧的准确检测，在标定试验温度范围内随机温度和溶解氧浓度下，使用该方法标定后传感器测温精度为±0.1 ℃，溶解氧测量准确度达到了±0.1 mg/L

关键词: 荧光猝灭, 光学溶解氧传感器, 数字锁相放大, 标定

Abstract: To meet the demand of in situ accurate monitoring of seawater dissolved oxygen using a domestic sensor, an optical seawater dissolved oxygen sensor was developed using modulation-demodulation digital quadrature lock-in amplification detection technology. The developed sensor achieved accurate detection of weak fluorescence lifetime. The dissolved oxygen sensor temperature coefficient was calibrated through polynomial regression analysis. A polynomial quantitative algorithm model of the fluorescence phase, dissolved oxygen concentration, and temperature was established to achieve the accurate detection of dissolved oxygen. Under a random temperature and dissolved oxygen concentration within the calibration test temperature range, the temperature measurement accuracy of the sensor is ±0.1 ℃ and the accuracy of dissolved oxygen measurement is ±0.1 mg/L after calibration.

Key words: fluorescence quenching, optical dissolved oxygen sensor, digital phase-locked amplification, calibration

中图分类号:

袁达, 冯现东, 张云燕, 吴丙伟. 基于荧光猝灭原理的海洋原位溶解氧传感器及定量标定算法 [J]. 山东科学, 2021, 34(2): 1-10.

YUAN Da, FENG Xian-dong, ZHANG Yun-yan, WU Bing-wei. Development of marine in situ dissolved oxygen sensor based on fluorescence quenching and its quantitative calibration algorithm[J]. Shandong Science, 2021, 34(2): 1-10.

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基于荧光猝灭原理的海洋原位溶解氧传感器及定量标定算法

Development of marine in situ dissolved oxygen sensor based on fluorescence quenching and its quantitative calibration algorithm

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