A highly sensitive in-situ CDOM sensor

Author

Hu Yi ; Sun Lei ; Ye Shuming ; Chen Hang ; Pan Jianming ; Gao Xiaohui

Author_Institution

Key Lab. of Biomed. Eng. of Minist. of Educ., Zhejiang Univ., Hangzhou, China

fYear

2013

fDate

26-28 Aug. 2013

Firstpage

648

Lastpage

652

Abstract

In-situ colored dissolved organic matter (CDOM) detection has great significance for marine scientific research. In this work, we have developed and tested a highly sensitive in-situ CDOM sensor. With the detecting principle and in-situ survey requirement, we have designed the conjugate focus light path, watertight mechanical structure and high precision electrical system with low power consumption. The baseline noise and calibration experiments indicated that the sensor had a sensitivity of 0.162μg/L. When the sensor is set at sleep mode, it consumes only 90μA with 9V power supply. These characters meet the in-situ survey requirement well.

Keywords

calibration; chemical sensors; dissolving; marine pollution; ocean composition; oceanographic equipment; organic compounds; baseline noise; calibration; colored dissolved organic matter; conjugate focus light path; current 90 muA; electrical system; in-situ CDOM sensor; in-situ survey requirement; marine scientific research; power consumption; sleep mode; voltage 9 V; watertight mechanical structure; Demodulation; Fluorescence; Interference; Light emitting diodes; Noise; Optical filters; Sensitivity; CDOM; Conjugate Focus Light Path; High Sensitivity; Low Power; Watertight Mechanical Structure;

fLanguage

English

Publisher

ieee

Conference_Titel

Information and Automation (ICIA), 2013 IEEE International Conference on

Conference_Location

Yinchuan

Type

conf

DOI

10.1109/ICInfA.2013.6720376

Filename

6720376