Automatic examination and correction of optic-axes error in impulse laser range finder

摘要

The impulse laser range finder has been used broadly in military affairs. The "optic-axes" of the laser range finder usually refers to the white light aim axes, laser emitting axes and laser receival axes. The three axes must be parallel to each other. As the range finder is designed, in general, it make sure that the white light aim axis and the laser receival axis is parallel each other in structure. Therefore, to examine and correct the three axes of the device becomes to examine and correct the two axes of the white light aim axes and the laser emitting axis. When the laser ranger finders are used in field operations, there is often a misadjustment of the axes, so the range finding ability is declining. In this paper, By using the image of CCD, we have obtained the error of the two axes and calculated the error by computer. We can adjust the eccentricity ring of the finder according to the calculated error. Automatic examination and correction of the optic-axes error of the finder are realized.