A fiber optic salinity measurement method based on the Fresnel principle

MA Xiao-chun; DONG Jun-liang; LIANG Fang; MA Ning

doi:10.3969/j.issn.1001-3806.2010.03.008

LASER TECHNOLOGY > 2010 > 34(3): 313-315. > DOI: 10.3969/j.issn.1001-3806.2010.03.008

MA Xiao-chun, DONG Jun-liang, LIANG Fang, MA Ning. A fiber optic salinity measurement method based on the Fresnel principle[J]. LASER TECHNOLOGY, 2010, 34(3): 313-315. DOI: 10.3969/j.issn.1001-3806.2010.03.008

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A fiber optic salinity measurement method based on the Fresnel principle

1.
Xinjiang Uygur Autonomous Region Research Institute of Measurement & Testing, Urumqi 830011, China;
2.
Department of Automation, Tsinghua University, Beijing 100084, China;
3.
China Special Equipment Inspection and Research Institute, Beijing 100013, China

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Received Date: May 13, 2009
Revised Date: May 30, 2009
Published Date: May 24, 2010

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Abstract

Abstract

In order to measure the refractive index of the salt solution so that its salinity can be obtained,a measurement method with optical fiber based on the Fresnel principle was put forward.Its principle was introduced and the experimental results were obtained.The experiments indicated that the resolution was smaller than 0.4%.This method is simple,fast,sensitive and accurate.It can be applied in real-time monitoring of the seawater salinity.It also can be widely used in the field of industrial online concentration or refractive detection.
- measurement and metrology,
- salinity measurement,
- Fresnel principle,
- refractive index

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