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Proceedings Paper

Study of underway salinity monitoring device based on optical refractive index measurement
Author(s): Long Yu; Junyao Chen; Wenping Guo; Kecheng Yang; Xiaojun Yin
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Paper Abstract

In ocean optics, salinity is an important inherent optical parameter to be measured. In the field of optics, refractive index (RI) is closely related to salinity. Through the real-time detection of the refractive index, we achieved the purpose of underway monitoring the salinity of seawater. We designed a refractive index measurement system based on optical total internal reflection. In this system, the detecting precision of the refractive index of the sea water reached 10-4. Through the conversion of the refractive index, we achieved in-situ measurement of the salinity. In 2016 summer, we accomplished a successful underway measurement in China Yellow Sea. The trends of the results from refractive index are basically agreed with the salinity measurements from electrical conductivity.

Paper Details

Date Published: 24 October 2017
PDF: 6 pages
Proc. SPIE 10462, AOPC 2017: Optical Sensing and Imaging Technology and Applications, 1046238 (24 October 2017); doi: 10.1117/12.2285116
Show Author Affiliations
Long Yu, Huazhong Univ. of Science and Technology (China)
Junyao Chen, Huazhong Univ. of Science and Technology (China)
Wenping Guo, Huazhong Univ. of Science and Technology (China)
Kecheng Yang, Huazhong Univ. of Science and Technology (China)
Xiaojun Yin, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 10462:
AOPC 2017: Optical Sensing and Imaging Technology and Applications
Yadong Jiang; Haimei Gong; Weibiao Chen; Jin Li, Editor(s)

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