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Simultaneous detection of CO2 and CO in engine exhaust using multi-mode absorption spectroscopy, MUMAS

Abstract:

Multi-mode absorption spectroscopy, MUMAS has been employed for the simultaneous detection of CO2 and CO. MUMAS signatures were recorded using a diode-pumped Er:Yb:glass microlaser emitting a multi-mode spectrum in the region of 1.57 μm. The ratio of CO2:CO concentrations in a calibration gas was measured to within the manufacturers uncertainty of ±1.4%. Both gases were also detected and the ratio of their concentrations measured in the exhaust gas of a SI internal combustion engine under var...

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Publication status:
Published

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Publisher copy:
10.1016/j.snb.2014.03.060

Authors


Thompson, A More by this author
Northern, H More by this author
Williams, B More by this author
Hamilton, M More by this author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Atomic and Laser Physics
Publisher:
Elsevier
Journal:
SENSORS AND ACTUATORS B-CHEMICAL
Volume:
198
Pages:
309-315
Publication date:
2014-07-05
DOI:
ISSN:
0925-4005
URN:
uuid:21eebb37-4e50-426c-bdd8-67eb4249c8c6
Source identifiers:
464887
Local pid:
pubs:464887

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