风洞模型激光攻角测量

Laser Measurement of Attack Angle by Wind- tunnel Model

给出一种用于风洞飞机模型攻角测量的方法.采用对称双光束交叠照射角传感器,风洞实验测角范围由40°增加到76°;利用电子处理器计数干涉条纹,测角精度可达0.005°.

A method for measuring attack angle by wind-tunnel model is described. By using laser angle senser (LAS) with two symmetrical and overlapping beams, the angle measured in dynamic state is increased from 40 ° to 76° . Whereas, the error in angle measurement is reduced to 0.005° .