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Review of Seawater Fiber Optic Salinity Sensors Based on the Refractive Index Detection Principle

Sensors (Basel, Switzerland), 2023-02, Vol.23 (4), p.2187 [Peer Reviewed Journal]

COPYRIGHT 2023 MDPI AG ;2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;2023 by the authors. 2023 ;ISSN: 1424-8220 ;EISSN: 1424-8220 ;DOI: 10.3390/s23042187 ;PMID: 36850782

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  • Title:
    Review of Seawater Fiber Optic Salinity Sensors Based on the Refractive Index Detection Principle
  • Author: Li, Gaochao ; Wang, Yongjie ; Shi, Ancun ; Liu, Yuanhui ; Li, Fang
  • Subjects: absolute salinity ; Accuracy ; Algorithms ; Atmospheric pressure ; Environmental monitoring ; Equipment and supplies ; Fiber optics ; In situ measurement ; Measuring instruments ; Methods ; ocean observation ; optical fiber sensor ; Performance indices ; Principles ; refractive index ; Refractivity ; Review ; Salinity ; Sea-water ; Seawater ; Sensors
  • Is Part Of: Sensors (Basel, Switzerland), 2023-02, Vol.23 (4), p.2187
  • Description: This paper presents a systematic review of the research available on salinity optic fiber sensors (OFSs) for seawater based on the refractive index (RI) measurement principle for the actual measurement demand of seawater salinity in marine environmental monitoring, the definition of seawater salinity and the correspondence between the seawater RI and salinity. To further investigate the progress of in situ measurements of absolute salinity by OFSs, the sensing mechanisms, research progress and measurement performance indices of various existing fiber optic salinity sensors are summarized. According to the Thermodynamic Equation of Seawater-2010 (TEOS-10), absolute salinity is recommended for sensor calibration and measurement. Comprehensive domestic and international research progress shows that fiber-optic RI sensors are ideal for real-time, in situ measurement of the absolute salinity of seawater and have excellent potential for application in long-term in situ measurements in the deep ocean. Finally, based on marine environmental monitoring applications, a development plan and the technical requirements of salinity OFSs are proposed to provide references for researchers engaged in related industries.
  • Publisher: Switzerland: MDPI AG
  • Language: English
  • Identifier: ISSN: 1424-8220
    EISSN: 1424-8220
    DOI: 10.3390/s23042187
    PMID: 36850782
  • Source: PubMed (Medline)
    Geneva Foundation Free Medical Journals at publisher websites
    AUTh Library subscriptions: ProQuest Central
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