物体运行速度激光多普勒法测量原理

The Principle of Measuring the Movement Speed of Body Using Laser on the Basis of Dopple-Effect

根据多普勒效应及光的干涉原理，采用激光作为光源对物体运行速度作了测量．该方法具有无接触，测量精度高的特点．采用计算机对测量数据采样分析、处理并输出必要的控制信号，计算机在处理数据对可对测量误差自动补偿．

The principle of measuring the movement speed of body using laser as light source according to Dopple-effect and interfere of light. The method has the characteristics of untouching with measurmeot body and high measarent percision. In the measmeat, a compacter is used to Collect and analyse datum, and to compensate the measurment error automaticly.