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spectral Doppler velocimetry, SDV
释义
spectral Doppler velocimetry, SDV
Encyclopedia
工学
多普勒测速法
释
spectral Doppler velocimetry, SDV
光谱多普勒测速法
专门应用于气体速度测量的方法。应是利用气体分子特征光谱的多普勒频移、展宽等效应,通过光谱分析(吸收光谱、荧光光谱或拉曼光谱),获得气体分子的速度和温度、压力等参量,光谱分析是非接触、快速的、直接测量方法,无须使用示踪粒子,测量准确度高。
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