39results about How to "Real-time return compensation" patented technology

The invention belongs to the technical field of precision measurement and the field of optical engineering, and particularly relates to a portable array zero setting high-frequency-response large-working-distance auto-collimation device and method. The device is composed of a light source, a collimating mirror, a reflector and a feedback imaging system. The method comprises the steps that the reflector is adjusted, a reflection light beam is returned to an image surface center of the feedback imaging system, and then an angle deflection measuring device on the reflector is used for obtaining angle changes on the surface of a measured object. Due to the fact that the reflector is added on a traditional auto-collimation angle measuring system, the problem that measurement cannot be carried out due to the fact that reflected light of the measure object deviates from the measuring system can be avoided, and then the technical advantage that the auto-collimation working range is significantly widened under the same working range or the working distance is significantly increased under the same auto-collimation working range is achieved. In addition, due to specific design of the collimating mirror, the feedback imaging system, the reflector and the like, the device further has the advantages of being small, portable and high in measuring precision and meanwhile has the quite high measuring speed.