High-sensitivity simultaneous pressure and temperature sensor using a superstructure fiber grating

Lin, Changqing; Liu, Yi-Chi; Liu, Wen‐Fung; Fu, Ming‐Yue; Sheng, Hao-Jan; Bor, Sheau-Shong; Tien, Chuen‐Lin

doi:10.1109/jsen.2006.874033

Cited by 35 publications

(8 citation statements)

References 10 publications

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“…Several optical sensors for pressure and temperature measurement have been reported [19,20,21,22]. Here, we present a field trial of a combined optical fibre-based point sensor for monitoring pressure (depth) and temperature in underwater applications.…”

Section: Introductionmentioning

confidence: 99%

Underwater Depth and Temperature Sensing Based on Fiber Optic Technology for Marine and Fresh Water Applications

Duraibabu

Leen

Toal

et al. 2017

Sensors

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Oceanic conditions play an important role in determining the effects of climate change and these effects can be monitored through the changes in the physical properties of sea water. In fact, Oceanographers use various probes for measuring the properties within the water column. CTDs (Conductivity, Temperature and Depth) provide profiles of physical and chemical parameters of the water column. A CTD device consists of Conductivity (C), Temperature (T) and Depth (D) probes to monitor the water column changes with respect to relative depth. An optical fibre-based point sensor used as a combined pressure (depth) and temperature sensor and the sensor system are described. Measurements accruing from underwater trials of a miniature sensor for pressure (depth) and temperature in the ocean and in fresh water are reported. The sensor exhibits excellent stability and its performance is shown to be comparable with the Sea-Bird Scientific commercial sensor: SBE9Plus.

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Section: Introductionmentioning

confidence: 99%

Underwater Depth and Temperature Sensing Based on Fiber Optic Technology for Marine and Fresh Water Applications

Duraibabu

Leen

Toal

et al. 2017

Sensors

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“…52 A further larger group of multiparameter sensors based on FBGs are sensors for simultaneous measurements of pressure and temperature. [62][63][64][65][66][67] The approach described in Ref. 62 utilizes a design with partially polymer-coated FBG, which increases the pressure and temperature sensitivities significantly.…”

Section: Optical Engineeringmentioning

confidence: 99%

“…In Ref. 65, a combined FBG and LPFBG are embedded into an elastic polymer material, which is deformed under pressure and, consequently, strains both gratings. The difference in sensitivities of both gratings is used to resolve pressure and temperature.…”

Section: Optical Engineeringmentioning

confidence: 99%

Multiparameter fiber-optic sensors: a review

2019

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Needs for sensor miniaturization, versatile sensing solutions, and improved measurements' performances in difficult operating environments have recently driven considerable research in optical fiber sensor for multiparameter measurements. Multiparameter sensors not only enable new sensors' functionalities, but can also improve achievable measurement performances for some frequently measured parameters considerably. This study provides a review of work in the field of miniature fiber-optic sensors that allows independent and simultaneous measurements of two or more different physical or chemical parameters. Sensor designs and corresponding signal processing schemes are reviewed and compared.

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“…, where 1 E and 1 A denote elasticity coefficient and cross-sectional area of the adiabatic strip respectively, F is the stress to be measured [4] . And the strain of the metal strip only induced by the stress can be expressed by 2…”

Section: Structure and Operationg Principle Of The Sensing Headmentioning

confidence: 99%

“…A are elasticity coefficient and cross-sectional area of the metal strip respectively [4] . v and eff n are the Poisson ratio and the effective refractive index respectively.…”

Section: Structure and Operationg Principle Of The Sensing Headmentioning

confidence: 99%

Fiber Bragg grating sensor for the simultaneous measurement of stress and temperature in high temperature environment

Jiang

2007

SPIE Proceedings

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A novel fiber Bragg grating sensor operating in the environment of high temperature is studied. And the sensor can realize the simultaneous measurement of stress and temperature. The sensing head is comprised of one metal strip、one adiabatic strip and two FBGs with the same specification. The metal strip converts the measured temperature into the strain of the FBG2, and the temperature will be related to the peak wavelength shift of the FBG2 induced by the strain.The sensed stress in the environment of high temperature is transferred into the longitudinal strain applied into the FBG1 and FBG2 through the adiabatic strip and the metal strip, respectively, which will induced the peak wavelength shifts of the two fiber Bragg gratings. In this way, we can know the stress according to the center-wavelength shift of the FBG1, and the temperature from the difference of the peak wavelength between the FBG1 and FBG2. Finally, by a simple simulation we proved the physics feasibility of the sensor and found the fiber Bragg grating sensor has a stress sensitivity of about 0.15pm per N, and a temperature sensitivity of about 4pm per degree centigrade. A temperature dynamic range of 900 °C can be obtained.

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High-sensitivity simultaneous pressure and temperature sensor using a superstructure fiber grating

Cited by 35 publications

References 10 publications

Underwater Depth and Temperature Sensing Based on Fiber Optic Technology for Marine and Fresh Water Applications

Underwater Depth and Temperature Sensing Based on Fiber Optic Technology for Marine and Fresh Water Applications

Multiparameter fiber-optic sensors: a review

Fiber Bragg grating sensor for the simultaneous measurement of stress and temperature in high temperature environment

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