空间旋转多光谱多光轴校准技术研究

Research of Calibration Technology of Spatial Rotative Multispectral and Multibeam Axes

论文总结了多光轴在空间旋转时形成的原因及其误差量,形成了兼顾安全和便捷的技术途径:首先以摄像机模拟非可见且对人眼有危害的激光器;其次设计加工出一种专用的回转基准调校基座和基准光源,通过转动基座,检测出摄像机光轴和可见光轴在空间不同相对位置的误差,采用双光楔方法进行调节;最后依托过渡工装使激光器光轴相对其安装面的精度与摄像机一致,由此保证了激光轴与可见光轴在任意方位角处均保持平行;其平行度误差不超过0.1m rad。

The calibration technology on the Optoeleetronic system with visible,laser,and rotational mechanical axis is discussed in this paper, this is the calibration of multispeetral spatial rotation optieal axis, the characteristics is not only the parallelism adjustment of optical axis where relative rotational movement occurs, but also the danger of invisible high-energy laser. The reason and error resulted from the muhibeam axis spatial rotation are summarized, proposing the adjustment technique with both safety and convenience. It begins that the harmful invisible laser is simulated by the visible light camera. Then, the special rotative adjustment pedestal and the reference source are designed and processed, and the error of the different spatial relative position between camera axis and visual axis is measured by turning the rotative pedestal and adjusted utilizing dual-optical wedge technique. Finally, the axis of laser and telescope in the discretional azimuth is kept parallel based on the consistence of precision in laser axis relative to fitting surface and camera through the transition froek,the error is limited to be less than 0. 1 mrad.