A compact multifunctional fiber sensor for simultaneous underwater measurement of salinity, temperature and strain

Sang, Guofeng; Yan, Ran; Yin, Bin; Wu, Songhua; Wang, Muguang; Yan, Lili; Li, Haisu; Hou, Benran; Gao, Mingquan

doi:10.1016/j.measurement.2022.111039

Cited by 12 publications

(4 citation statements)

References 35 publications

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“…The development of this direction is beneficial for the integration of seawater salinity sensors with other parameter sensors. Guofeng Sang [ 47 ] developed a compact multifunctional fiber optic sensor based on single-mode fiber-photonic crystal that maintains a fiber Bragg grating (SPNPS-PMFBG) ( Figure 5 d). By monitoring the wavelength and output power of the two PMFBG resonance peaks, simultaneous measurements of salinity, temperature and strain are possible.…”

Section: Salinity Ofssmentioning

confidence: 99%

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

Wang

Shi

et al. 2023

Sensors

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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.

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Section: Salinity Ofssmentioning

confidence: 99%

“…( c ) Illustration of the multiplexed FBG sensor system [ 41 ]. ( d ) Diagram of the fusing process at different stages [ 47 ]. ( e ) Schematic of the measurement system and its sensing structure [ 49 ].…”

Section: Salinity Ofssmentioning

confidence: 99%

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

Wang

Shi

et al. 2023

Sensors

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“…In many practical applications, multiparameter measurements are often required 14–16 . The following focuses on strain, magnetic field (MF), and refractive index (RI) sensors composed of the ARROW mechanism in HCF.…”

Section: Introductionmentioning

confidence: 99%

“…13 In many practical applications, multiparameter measurements are often required. [14][15][16] The following focuses on strain, magnetic field (MF), and refractive index (RI) sensors composed of the ARROW mechanism in HCF. Zhao et al designed an Fabry-Perot interferometer strain probe based on ARROW to measure strain.…”

Section: Introductionmentioning

confidence: 99%

Tapered hollow‐core fiber sensor for monitoring axial strain, magnetic field, and refractive index

Gao,

Jiang,

Deng

et al. 2024

Micro & Optical Tech Letters

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A high sensitivity sensor is proposed to measure axial strain, magnetic field, and refractive index. Hollow‐core fiber (HCF) and single mode fiber (SMF) are fused together to form the “SMF–HCF–SMF,” then tapering HCF, and finally forming a sensor. The light in the sensor structure forms an antiresonant reflection optical waveguide mechanism. The sensor has particularly thin waist circumference, therefore the surface evanescent field of the sensor is easily affected by environmental parameters, making it particularly sensitive to environmental parameters. The axial strain sensitivity obtained by the sensor is as high as −31.87 pm/µε. The magnetic field sensitivity obtained by combining the sensor with magnetostrictive material Terfenol‐D in the range of 10–40 mT is 123.9 pm/mT. The sensor measures the refractive index of NaCl solution with a sensitivity of up to 2109.308 nm/RIU (RIU: refractive index unit). Additionally, the sensor has good stability and repeatability when measuring three physical quantities. The sensor has a compact structure, stable performance, simple manufacturing, and can measure multiple parameters in biochemical engineering, industrial structural health detection, and marine resource detection.

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Modelling and analysis of fiber Bragg grating temperature sensor for Internet of things applications (FBG-4-IoT)

Macheso,

Zekriti

2024

International Journal of Intelligent Networks

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A compact multifunctional fiber sensor for simultaneous underwater measurement of salinity, temperature and strain

Cited by 12 publications

References 35 publications

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

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

Tapered hollow‐core fiber sensor for monitoring axial strain, magnetic field, and refractive index

Modelling and analysis of fiber Bragg grating temperature sensor for Internet of things applications (FBG-4-IoT)

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