Design of chlorophyll-a and turbidity sensor based on fluorescence induction and scattering-light detection

Keke Zhang; Shixuan Liu; Shizhe Chen; Yong Qi; Bin Miao; Xingkui Yan; Xuejiao Bai

doi:10.1117/12.2067746

21 August 2014 Design of chlorophyll-a and turbidity sensor based on fluorescence induction and scattering-light detection

Keke Zhang, Shixuan Liu, Shizhe Chen, Yong Qi, Bin Miao, Xingkui Yan, Xuejiao Bai

Author Affiliations +

Proceedings Volume 9233, International Symposium on Photonics and Optoelectronics 2014; 923323 (2014) https://doi.org/10.1117/12.2067746
Event: International Symposium on Photonics and Optoelectronics (SOPO 2014), 2014, Suzhou, China

Abstract

The chlorophyll-a and turbidity sensor based on the principles of fluorescence induction and scattering-light detection is designed. Using fluorescence induction technology, scattering-light detection technology and weak signal detection technology, chlorophyll-a concentration measurement and turbidity measurement in seawater are integrated in a set of testing equipment to implement software and hardware reuse and improve the integration of the device, which has the features of small size and easy operation. The comparative experiments and repetitive experiments are completed with ALEC ACLW-CAR chlorophyll / turbidity sensor. Experiment results show that chlorophyll-a concentration, turbidity and the system output values have good linear relationships, and the fitting coefficients are 0.999. Repeatability standard deviations of chlorophyll-a detection and turbidity detection are better than 0.08 μg/L and 0.04 FTU, respectively, and the accuracy of the device within ± 2%. Chlorophyll-a and turbidity in-situ monitoring in seawater can be achieved using this testing equipment.

Citation Download Citation

Keke Zhang, Shixuan Liu, Shizhe Chen, Yong Qi, Bin Miao, Xingkui Yan, and Xuejiao Bai "Design of chlorophyll-a and turbidity sensor based on fluorescence induction and scattering-light detection", Proc. SPIE 9233, International Symposium on Photonics and Optoelectronics 2014, 923323 (21 August 2014); https://doi.org/10.1117/12.2067746

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