激光制导装置出射激光束散角和光轴平行性的简易检测方法

Handy method to detect divergence angle and optical axis parallelism of laser guidance device

在激光末端制导武器系统中,出射激光的束散角和光轴平行性是决定照射精度的重要因素,需要经常性的检查和调整。采用棱镜透镜组合装置把出射激光束经发射通道聚焦成像,根据光斑半径测量束散角。根据光斑中心在瞄准通道中的相对位置确定光轴平行性。这种方法光路简单、装调方便,可以在野外环境下对照射性能快速检测和调整。改变装配结构后,同样适用于其它的末制导系统。

In laser terminal guidance system, diverging angle of laser beam and optical axis parallelism are important parameters. They must be checked and adjusted to the accurate status regularly. Using assembled unit of prism and lens, the laser beam from firing channel is focalized and imaged. Divergence angle is accounted according to the radius. Axis parallelism is accounted according to the relative deflection from center of aiming channel. This method is handy and reliable. It can be used in outdoor surroundings and applied to other similar system after changing assembling structure.