Development, Based On The Focusing System Of The Metal Grating

Automatic focusing is a primary condition to achieve precision tracking on the moving target for the large-scale photoelectric tracking telescope system. With the development of photoelectric tracking system, distance focusing system should have higher focus precision, better environmental adaptability and smaller space.The focusing system accuracy, reliability and performance will be improved by Distance focusing system based on metal grating.The system will have environmental adaptability and simplified structure.Metal grating and mirror focusing system are integrated, hardware control circuit is designed and DSP control software is prepared. Through improvement, the system is applied in a large electro-optical tracking system. The functionality and performance of focusing system are certificated through a set of test.Focusing accuracy and environment adaptability are improved and the volume is reduced in this system.