TY - JOUR
T1 - An optical fibre based ultra violet and visible absorption spectroscopy system for ozone concentration monitoring
AU - O'Keeffe, S.
AU - Fitzpatrick, C.
AU - Lewis, E.
PY - 2007/8/8
Y1 - 2007/8/8
N2 - The use of optical fibres for the measurement of ozone based on the optical absorption of UV light at 254 nm and visible light at 600 nm is investigated and tested. Sensing in the UV region allows for highly sensitive detectors due to its high absorption in that region. The visible region has a significantly lower absorption of ozone and so it is possible to monitor high ozone concentrations. Calculations based on the Beer-Lambert law are presented to demonstrate the high resolution of the UV based sensor in determining the concentration of ozone in the range of 0-1 mg/l and the ability of the visible based sensor to measure high concentrations over a wide range of 25-126 mg/l.
AB - The use of optical fibres for the measurement of ozone based on the optical absorption of UV light at 254 nm and visible light at 600 nm is investigated and tested. Sensing in the UV region allows for highly sensitive detectors due to its high absorption in that region. The visible region has a significantly lower absorption of ozone and so it is possible to monitor high ozone concentrations. Calculations based on the Beer-Lambert law are presented to demonstrate the high resolution of the UV based sensor in determining the concentration of ozone in the range of 0-1 mg/l and the ability of the visible based sensor to measure high concentrations over a wide range of 25-126 mg/l.
KW - Absorption spectroscopy
KW - Gas sensing
KW - Optical fibre sensing
KW - Ozone
UR - http://www.scopus.com/inward/record.url?scp=34447631319&partnerID=8YFLogxK
U2 - 10.1016/j.snb.2007.02.023
DO - 10.1016/j.snb.2007.02.023
M3 - Article
AN - SCOPUS:34447631319
SN - 0925-4005
VL - 125
SP - 372
EP - 378
JO - Sensors and Actuators, B: Chemical
JF - Sensors and Actuators, B: Chemical
IS - 2
ER -