Title :
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
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;
Conference_Titel :
Information and Automation (ICIA), 2013 IEEE International Conference on
Conference_Location :
Yinchuan
DOI :
10.1109/ICInfA.2013.6720376
