Open AccessA Submersible in-Situ Highly Sensitive Chlorophyll Fluorescence Detection System
Author(s) -
Yi Pan,
Lei Qiu
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/677/2/022065
Subject(s) - in situ , chlorophyll fluorescence , remote sensing , fluorescence , chlorophyll , correlation coefficient , signal (programming language) , interference (communication) , chlorophyll a , environmental science , water quality , biological system , chemistry , computer science , optics , telecommunications , physics , geology , ecology , channel (broadcasting) , biochemistry , organic chemistry , machine learning , biology , programming language
Chlorophyll concentration in water is an important indicator of water quality monitoring. In this paper, the method of fluorescence analysis for the detection of chlorophyll in water is introduced in detail, and a design scheme of in-situ chlorophyll fluorescence detection instrument is proposed. Effectively improve the efficiency and accuracy of chlorophyll fluorescence detection in water by optimizing optical path, fluorescence signal modulation, filtering and other anti-interference methods; Adopt a low-power design scheme to extend the instrument’s in-situ continuous detection time. The test results show that the linear response correlation coefficient R of the self-designed water chlorophyll detection instrument is above 0.999 with an accuracy of 0.02μg/L. The in-situ measurement time can reach 3 months, reaching the level of similar high-end instruments abroad.