Title :
Development of an optical fibre sensor system for online monitoring of microwave plasma UV and ozone generation system
Author :
O´Keeffe, S. ; Ortoneda, M. ; Cullen, J.D. ; Shaw, A. ; Phipps, D. ; Al-Shamma, A.I. ; Fitzpatrick, C. ; Lewis, E.
Author_Institution :
RFM Res. Group, Liverpool John Moores Univ., Liverpool
Abstract :
An optical fibre sensor system is being developed to monitor the outputs of a microwave-generated plasma UV lamp, capable of producing germicidal UV and ozone gas simultaneously, for use in food treatment. Optical fibres offer the advantage of allowing for remote monitoring of the measurement site. The fibres are not affected by high electromagnetic fields and the control electronics can be kept away from such a harsh environment, making them an ideal choice for the monitoring of the microwave radiation device. The sensor system monitors UV intensity at 254 nm and also ozone gas concentrations, based on the Beer-Lambert Law for absorption spectroscopy.
Keywords :
fibre optic sensors; food preservation; gas sensors; ultraviolet detectors; Beer-Lambert Law; absorption spectroscopy; control electronics; electromagnetic fields; food treatment; germicidal UV; microwave plasma UV online monitoring; microwave-generated plasma UV lamp; optical fibre sensor system; ozone gas; ozone generation system; wavelength 254 nm; Electromagnetic fields; Electromagnetic measurements; Lamps; Microwave generation; Optical fiber devices; Optical fiber sensors; Optical fibers; Plasma measurements; Radiation monitoring; Remote monitoring;
Conference_Titel :
Sensors, 2008 IEEE
Conference_Location :
Lecce
Print_ISBN :
978-1-4244-2580-8
Electronic_ISBN :
1930-0395
DOI :
10.1109/ICSENS.2008.4716475
