TY - JOUR
T1 - Utilization of the Tunability of the Lead-Salt Diode Laser for a Fast and Local Measurement of Specific Gas Density
AU - Sano, Hiroya
AU - Koga, Ryuji
AU - Kosaka, Megumi
AU - Shinohara, Koji
PY - 1982/3
Y1 - 1982/3
N2 - In the optical gas monitoring method using a lead-salt diode laser, a spectral scanning operation of the diode brings an immunity against spectral interference which has limited the sensitivity of prevailing methods. Local, sensitive, and noncontacting features as well as quickness are attained simultaneously. Experiments for atmospheric methane showed a sensitivity of 0.3 ppm over a path length of only 1 m. Density data were obtained at every 4 s and the immunity for spectral interference was demonstrated. Theoretically, a sensitivity of 0.015 ppm for 1 m is expected.
AB - In the optical gas monitoring method using a lead-salt diode laser, a spectral scanning operation of the diode brings an immunity against spectral interference which has limited the sensitivity of prevailing methods. Local, sensitive, and noncontacting features as well as quickness are attained simultaneously. Experiments for atmospheric methane showed a sensitivity of 0.3 ppm over a path length of only 1 m. Density data were obtained at every 4 s and the immunity for spectral interference was demonstrated. Theoretically, a sensitivity of 0.015 ppm for 1 m is expected.
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U2 - 10.1109/TIM.1982.6312518
DO - 10.1109/TIM.1982.6312518
M3 - Article
AN - SCOPUS:0019534897
SN - 0018-9456
VL - IM-31
SP - 66
EP - 69
JO - IEEE Transactions on Instrumentation and Measurement
JF - IEEE Transactions on Instrumentation and Measurement
IS - 1
ER -