Title :
Monitoring technology of salinity in water with optical fiber sensor
Author :
Zhao, Yong ; Liao, Yanbiao ; Zhang, Bo ; Lai, Shurong
Author_Institution :
Dept. of Autom., Tsinghua Univ., Beijing, China
fDate :
5/1/2003 12:00:00 AM
Abstract :
A novel optical fiber sensor used for remote monitoring of salinity in water is proposed. Based on the detection of beam deviation due to the refractive index changes of the salt water, salinity can be measured by a position-sensitive detector. The measurement principle is theoretically described. Preliminary prototype is set up, and experimental results indicate the feasibility of the method. Salinity measurement resolution can reach 0.012%o within the measurement range from distilled water to salt water with salinity of 50%o.
Keywords :
fibre optic sensors; measurement errors; monitoring; oceanographic techniques; seawater; water pollution measurement; beam deviation; distilled water; mariculture; marine environment monitoring; measurement principle; monitoring technology; oceanics; optical fiber sensor; position-sensitive detector; refractive index changes; salinity; salinity measurement resolution; salt water; seasonal climate prediction; water; water quality; Light sources; Optical fiber sensors; Optical refraction; Optical sensors; Position sensitive particle detectors; Prototypes; Refractive index; Remote monitoring; Sea measurements; Ultrasonic variables measurement;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2003.811318
