Temperature compensated miniature all-glass fibre optic pressure sensor

Author

Bremer, K. ; Lewis, E. ; Leen, G. ; Moss, B. ; Lochmann, S. ; Mueller, I.

Author_Institution

Opt. Fibre Sensor Res. Centre (OFSRC), Univ. of Limerick, Limerick, Ireland

fYear

2011

fDate

28-31 Oct. 2011

Firstpage

105

Lastpage

108

Abstract

In this paper the low pressure response and resolution of a temperature compensated miniature all-glass Fibre Optic Pressure Sensor (FOPS) is evaluated. The active temperature compensation of a diaphragm based all-silica Extrinsic Fabry Perot Interferometric (EFPI) FOPS is established by encapsulating a Fibre Bragg Grating (FBG) within the EFPI cavity. The evaluation is performed by using an extended White Light Interrogation (WLI) system. Due to its several advantages the reported FOPS has already been successfully applied in measuring pressure in an exhaust system of a vehicle as well as in a simulated geothermal well.

Keywords

Fabry-Perot interferometers; compensation; diffraction gratings; exhaust systems; fibre optic sensors; pressure measurement; pressure sensors; EFPI; FOPS; diaphragm; exhaust system; extrinsic Fabry Perot interferometry; fibre Bragg grating; fibre optic sensor; miniature all-glass fibre; pressure measurement; pressure sensor; simulated geothermal well; temperature compensation; white light interrogation; Cavity resonators; Equations; Mathematical model; Optical fibers; Pressure measurement; Temperature measurement; Temperature sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

Sensors, 2011 IEEE

Conference_Location

Limerick

ISSN

1930-0395

Print_ISBN

978-1-4244-9290-9

Type

conf

DOI

10.1109/ICSENS.2011.6127102

Filename

6127102