High sensitivity pressure measurement using optical fibre sensors mounted on a composite diaphragm

被引：15
|
作者：
Aime, Laura F. J. [1 ]
Kissinger, Thomas [1 ]
James, Stephen W. [1 ]
Chehura, Edmon [1 ]
Verzeletti, Alberto [2 ]
Tatam, Ralph P. [1 ]
机构：
[1] Cranfield Univ, Ctr Engn Photon, Cranfield MK43 0AL, Beds, England
[2] Composite R&D, Mercedes NN13 7BD, Brackley, England
来源：
OPTICS EXPRESS | 2021年 / 29卷 / 03期
基金：
英国工程与自然科学研究理事会;
关键词：
TEMPERATURE; STRAIN;
D O I：
10.1364/OE.416715
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A pressure sensor specified for aerodynamic applications and based on optical fibre strain sensors mounted on a circular glass fibre reinforced polymer membrane is presented. The use of two fibre optic strain sensing technologies is explored, the novel intrinsic fibre segment interferometry (FSI) approach and fibre Bragg gratings (FBGs), with the use of FSI shown to offer a pressure resolution that is 15 times larger than that achieved using an FBG. A number of design and fabrication issues are considered, including the position of the fibres relative to the neutral axis of the membrane and the influence of the membrane support structure on the thermal and pressure sensitivities of the sensor, with particular regards to pressure and temperature discrimination. Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License.
引用
收藏
页码：4105 / 4123
页数：19
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