Fabrication of a miniature all-glass fibre optic pressure and temperature sensor

Bremer, Kort; Lewis, Elfed; Leen, Gabriel; Moss, Brian; Lochmann, Steffen; Mueller, I.

doi:10.1016/j.proeng.2011.12.125

Cited by 8 publications

(4 citation statements)

References 9 publications

(8 reference statements)

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“…The remaining two subsections discuss the interrogation and experimentation carried out with the sensors. While an all-glass sensor was used as a reference for this study, the manufacturing process is not presented here as it was not the focus of this discussion and can be found in Bremer et al [ 21 , 22 ].…”

Section: Materials and Methodsmentioning

confidence: 99%

Fabrication and Qualitative Analysis of an Optical Fibre EFPI-Based Temperature Sensor

McGuinness

Cloonan

Oubaha

et al. 2021

Sensors

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The following presents a comparison of an extrinsic Fabry–Perot interferometer (EFPI)-based temperature sensor, constructed using a novel diaphragm manufacturing technique, with a reference all-glass EFPI temperature sensor. The novel diaphragm was manufactured using polyvinyl alcohol (PVA). The novel sensor fabrication involved fusing a single-mode fibre (SMF) to a length of fused quartz capillary, which has an inner diameter of 132 μm and a 220 μm outer diameter. The capillary was subsequently polished until the distal face of the capillary extended approximately 60 μm beyond that of the single mode fibre. Upon completion of polishing, the assembly is immersed in a solution of PVA. Controlled extraction resulted in creation of a thin diaphragm while simultaneously applying a protective coating to the fusion point of the SMF and capillary. The EFPI sensor is subsequently sealed in a second fluid-filled capillary, thereby creating a novel temperature sensor structure. Both temperature sensors were placed in a thermogravimetric analyser and heated from an indicated 30 °C to 100 °C to qualitatively compare sensitivities. Initial results indicated that the novel manufacturing technique both expedited production and produces a more sensitive sensor when compared to an all-glass construction.

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Section: Materials and Methodsmentioning

confidence: 99%

Fabrication and Qualitative Analysis of an Optical Fibre EFPI-Based Temperature Sensor

McGuinness

Cloonan

Oubaha

et al. 2021

Sensors

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“…Sample S 3 is an attempt to develop a real environment based model which can be used in buildings and other man-made structures. It is mainly intended for SHM applications [25].…”

Section: Sample Fabricationmentioning

confidence: 99%

“…If a crack is detected in its early stages, it is possible to prevent such damage [4][5][6]. A lot of investigations in the domain of non-destructive techniques have been undertaken with the goal of early detection of structural defects [7][8][9]. So there is an ever-growing requirement to develop a cheap and efficient pressure sensor which can sense dangerous strain levels and structural defects in man-made structures like buildings, bridges etc due to cyclic loading and unloading with time bounded conditions.…”

Section: Introductionmentioning

confidence: 99%

Design and development of lab model of piezo-optic sensor for Structural Health Monitoring

Sikarwar¹,

Singh²,

Satyendra³

et al. 2017

Smart Mater. Struct.

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This work deals with fibre optic pressure sensors for Structural Health Monitoring (SHM) based on the piezo-optic principle. Various samples were prepared and investigated under room ambient conditions. In one of the samples, periodic microbends of 1 cm spatial periodicity were introduced in the PCS600 optical fibre, which was then embedded in an Araldite matrix with the composition of 60% hardener and 40% resin. This sample was marked as S1. In another sample, the same fibre without microbending was embedded in the same Araldite matrix, and was marked as S2. In another sample, the fibre without microbending was embedded in a cement matrix composite, and was marked as S3. Sample S3 was an effort to develop a pressure sensor for real working environment. Here conventional portland cement was used for the fabrication of the sample. High pressure up to 60 KPa was applied to the sample under cyclic loading and unloading, and the corresponding output power noted. Sensitivities of fibre optic pressure sensor for samples S1, S2 and S3 are 2.304, 0.906 and 2.218 nW KPa–1, with reproducibilities 96.61%, 97.95% and 87.24% respectively. The sensitivities obtained indicate that the sensor has excellent potential to replace existing bulky electrical sensors.

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“…The T‐dependence semiconductor absorption at the band edge is used as the principle of the T measurements. Fabrication of a miniature all‐glass fiber optic pressure and temperature sensor is reported in Ref 12…”

Section: Introductionmentioning

confidence: 99%

Investigation of bending and temperature effects in optical fibers

Golnabi

Sharifian

2012

Micro & Optical Tech Letters

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Fiber bending and temperature loss mechanisms in plastic optical fibers are reported.A simple arrangement is used to monitor the fiber bending and temperature by output power variation. Powers in the fibers in bend‐free situation at room temperature and under rolling deforming force at different water bath temperatures (20–60°C) are measured and compared. Reported arrangements can be used as a temperature sensor. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:82–86, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27271

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Fabrication of a miniature all-glass fibre optic pressure and temperature sensor

Cited by 8 publications

References 9 publications

Fabrication and Qualitative Analysis of an Optical Fibre EFPI-Based Temperature Sensor

Fabrication and Qualitative Analysis of an Optical Fibre EFPI-Based Temperature Sensor

Design and development of lab model of piezo-optic sensor for Structural Health Monitoring

Investigation of bending and temperature effects in optical fibers

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