Title :
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
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;
Conference_Titel :
Sensors, 2011 IEEE
Conference_Location :
Limerick
Print_ISBN :
978-1-4244-9290-9
DOI :
10.1109/ICSENS.2011.6127102
