caa a22 4500 445368705 CHVBK 20180317142939.0 cr unu---uuuuu 170323e20110601xx s 000 0 eng 10.1007/s00340-011-4570-8 doi (NATIONALLICENCE)springer-10.1007/s00340-011-4570-8 A carbon monoxide and thermometry sensor based on mid-IR quantum-cascade laser wavelength-modulation absorption spectroscopy [Elektronische Daten] [J. Vanderover, W. Wang, M. Oehlschlaeger] A mid-infrared wavelength modulation spectroscopy (WMS) absorption sensor utilizing a quantum cascade laser (QCL) source for carbon monoxide detection at 4.6μm and high-temperature thermometry has been developed and demonstrated. Measurements are made in a room-temperature gas cell and in high-temperature reflected-shock-heated gases. Room-temperature results demonstrate a minimum CO detectivity of 0.03ppm per meter of absorption path length at a 1-kHz detection bandwidth, representing an order-of-magnitude increased sensitivity compared to scanned-wavelength direct absorption. High-temperature shock tube measurements demonstrate sensitive thermometry from 850 to 3500K for pressures near 1atm at detection bandwidths of 500Hz and 1kHz. Sensor determined temperatures agree with the post-reflected-shock conditions within ±1.9% (1σ deviation). To our knowledge, the thermometry measurements presented here represent the first WMS high-temperature thermometry measurements made using a QCL. Springer-Verlag, 2011 Vanderover J. Department of Mechanical, Aerospace, and Nuclear Engineering, Rensselaer Polytechnic Institute, 110 8th Street, 12180, Troy, NY, USA aut Wang W. Department of Mechanical, Aerospace, and Nuclear Engineering, Rensselaer Polytechnic Institute, 110 8th Street, 12180, Troy, NY, USA aut Oehlschlaeger M. Department of Mechanical, Aerospace, and Nuclear Engineering, Rensselaer Polytechnic Institute, 110 8th Street, 12180, Troy, NY, USA aut Applied Physics B Springer-Verlag 103/4(2011-06-01), 959-966 0946-2171 103:4<959 2011 103 340 https://doi.org/10.1007/s00340-011-4570-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00340-011-4570-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Vanderover J. Department of Mechanical, Aerospace, and Nuclear Engineering, Rensselaer Polytechnic Institute, 110 8th Street, 12180, Troy, NY, USA aut NATIONALLICENCE 700 1- Wang W. Department of Mechanical, Aerospace, and Nuclear Engineering, Rensselaer Polytechnic Institute, 110 8th Street, 12180, Troy, NY, USA aut NATIONALLICENCE 700 1- Oehlschlaeger M. Department of Mechanical, Aerospace, and Nuclear Engineering, Rensselaer Polytechnic Institute, 110 8th Street, 12180, Troy, NY, USA aut NATIONALLICENCE 773 0- Applied Physics B Springer-Verlag 103/4(2011-06-01), 959-966 0946-2171 103:4<959 2011 103 340 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer