一种直角棱镜棱脊相对变化量测量方法

在一些导弹的瞄准系统中，需要对导弹复位角度进行测量。通常是在导弹上安装直角棱镜．使直角棱镜棱脊与导弹轴线水平。在直角棱镜的反射光路中，通过对直角棱镜棱脊的方位监测，利用直角棱镜棱脊方位的变化来计算导弹的复位角度。主要对由于直角棱镜棱脊相对倾斜进行了理论分析和实验验证，在理论分析和实验验证中都认为直角棱镜为理想棱镜，无角度制造误差，即不考虑折射的作用。

The Measure of the Right-angle Prism Axis's Comparatively Variety

It is needed to measure missile's replacement-angle in missile's aiming system. Usually, a right-angle prism on the missile is setup, and making the prism axis paralleling missile axis. In the reflection optical path using right-angle prism, It is achieve measured with testing variety of prism axis's azimuth. theoretic analyse and experiment about the right-angle prism axis's comparatively variety are mainly introduced. Otherwise, in theoretic analyse and experiment, the right-angle prism hasn't produced error. And the ray refraction is considered without.