First Aerodynamics Division, National Aerospace Laboratory(NAL)
Noise and Emission Research Group, National Aerospace Laboratory(NAL)
Aeroengine Division, National Aerospace Laboratory(NAL)
Graduate School, The University of Tokyo
出版者
航空宇宙技術研究所
出版者（英）
National Aerospace Laboratory(NAL)
雑誌名
航空宇宙技術研究所報告
雑誌名(英)
Technical Report of National Aerospace Laboratory TR-940
巻
940
ページ
14
発行年
1987-08
抄録（英）
An improved phase-match arrangement for generating broadband CARS signals was devised and applied to the detection of low concentration species in a burned gas. This arrangement was effective in eliminating nonresonant signals generated in the light path and was capable of keeping the signal levels higher than BOXCARS arrangement. It was shown that by single-pulse measurements the lowest detection level of O2 concentration was possible down to 2％ volumetric fraction. A nonresonant background suppression technique was also attempted and background-free specta of O2 and CO were obtained to demonstrate the background rejection ability and the enhancement of detectivity.
CARS Measurements of Combustion (II) Gas Species Concentration Measurements
naltr00940.pdf
(961.58KB)
