【摘要】 本文着重阐述反射式同侧接收方式激光测速的原理,并根据我室多年来流体力学试验中测量溢流边界层内流速分布的实践,总结了激光测速中提高信噪比(S/N)的一些具体措施和方法。更多还原

【Abstract】 This paper presents a new method of measuring fluid velocity by laser. A number of experiments have been done by measuring the velocity distribution in overfall boundary. The test result agrees with the theory. According to the experiments, several ways by which signal-to-noise ratio can be increased have been provided.更多还原