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Review of salinity measurement technology based on optical fiber sensor

Qian, Yu ; Zhao, Yong ; Wu, Qi-lu ; Yang, Yang

Sensors and actuators. B, Chemical, 2018-05, Vol.260, p.86-105 [Periódico revisado por pares]

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Título:
Review of salinity measurement technology based on optical fiber sensor
Autor: Qian, Yu ; Zhao, Yong ; Wu, Qi-lu ; Yang, Yang
Assuntos: Biosensors ; Fiber optics ; Ion pairs ; Measurement ; Optical fiber sensor ; Optical fibers ; Refractive index ; Refractivity ; Salinity ; Salinity measurement ; Seawater ; Sensors ; Studies
É parte de: Sensors and actuators. B, Chemical, 2018-05, Vol.260, p.86-105
Descrição: A review of the salinity measurement technology based on the optical fiber sensor is presented. The principles of optical fiber measurement, the structures of probes and the characteristics of various sensing structures are concerned. Firstly, this paper discusses the relationship between the salinity and refractive index, and the effect of ion pairs on the refractive index. Secondly, four methods of direct or non-direct measurements of salinity are summarized, including optical refraction method, optical fiber grating, optical interference and surface plasmon effect. Subsequently, the article compares performances of various sensing structures and analyses the advantages and disadvantages of different sensors. Finally, a prospect of salinity measurement requirement and the development direction of fiber-optic sensors in this area are addressed.
Editor: Lausanne: Elsevier B.V
Idioma: Inglês

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