摘要
对高分辨率激光光谱技术用于气流流场的测量方法进行了探讨．利用不同波长光波频率的自动扫描进行了静态和动态、单向和相向光的吸收光谱测量，得到了初步的实验结果。
An optical technique for velocity measurement in gas flowfield is presented. The technique is based on the observation of Doppler shifted absorption spectrum lines from seeded idodine molecules excited at a laser frequency. Large amount of optical spectrum measurements are made for static and dynamic, unidirectional and dual directional laser excitations at different wave length. Some conclusions are drawn. The key points and difficulties of the technique are also pointed out.
出处
《实验力学》
CSCD
北大核心
1999年第2期150-156,共7页
Journal of Experimental Mechanics
基金
国家自然科学基金
关键词
流场速度测量
高分辨率
激光光谱
气流
flowfield velocity measurement, laser absorption spectrum
