Bremer, K,Lewis, E,Leen, G,Moss, B,Leen, J,Lochmann, S,Mueller, I,Bock, WJ,Albert, J,Bao X

21ST INTERNATIONAL CONFERENCE ON OPTICAL FIBER SENSORS

Fibre optic pressure sensor system for high temperature exhaust gas flows

2011

November

Published

1

()

Fabry-Perot Interferometer Fibre Bragg Grating Optical Fibre Sensor Pressure Sensor Engine Exhaust High Temperature

Sensing the pressure of gasses in the exhaust manifold of an internal combustion engine is a challenging application. The exhaust gasses themselves are rapidly changing with temperatures involved that can be in the region of 800 degrees C. This paper presents a Fibre Optic Pressure Sensor (FOPS) system designed specifically for this application. The FOPS system consists of an Extrinsic Fabry Perot Interferometer / Fibre Bragg Grating hybrid sensor, which is able to measure pressure and temperature simultaneously at the point of measurement, and a feedback controlled single wavelength interrogation technique. The combination of both allows the acquisition of fast pressure fluctuations in high temperature environments.

10.1117/12.885137