摘要
介绍了一种同时多点激光多普勒测速仪(LDV)的系统构成和原理,推导出了该测量系统的计算公式,并通过实验进行了验证。结果表明,该系统不仅能同时获取流场中多个空间测量点的速度信息,并且具有结构简单、频率响应快和精度高等特点。
We describe a new LDV system which can simultaneously measure velocities at different points in a velocity field. The measurement system features a simple structure,high accuracy and fast frequency response, The structure of the proposed system and the principle of the operations are described in detail. A theoretical analysis on Doppler shifts in the system is presented. Experiments to demonstrate the developed LDV system are also described.
出处
《光电子．激光》
EI
CAS
CSCD
北大核心
2007年第7期824-827,共4页
Journal of Optoelectronics·Laser
基金
国家自然科学基金资助项目(60578054)
