The Application Of The Dual-wedge Prism Scaning In The Forward Looking Infra-Red Navigation Equipment

The fighter plane’s Forward Looking Infra-Red navigation equipment(FLIR) an essential kind of performance battle task equip under nighttime or bad visibility condition, For airplane pilot real time provide clearer environment image, The flight of the further exaltation airplane safe ability and war power. That equipments can also install etc. has strict request to the weight, cubage at the helicopter of carry a body top the performance navigate, rescue, surveillance, scout etc. task. This paper discussed developing of The FLIR process in detail, Category, structure and characteristics that takes aim at line move to the realization The FLIR did synopsis introduction, Through analysis compare. For make system structure tightly packed, small scaled turn, the weight is light. Put forward an adoption to revolve The Dual-wedge Prism Scaning System for the seeing of equipments’ field, Pass to control two prisms to quickly revolve certain angle, guide light axis to arrive particular position, carry out to take aim at scanning of the line big scope, and optical designing and mechanical construction designing were introduced as the main points.This paper systematically analyzed prisms to revolve angle and take aim at the relation of line angle, the control regulation of the prisms and the electrical engineering machine in the drive machine of nomina speed, Stall torque and Max torque of calculation, load to need of speed, the torque compute, the calculation of optoelectronics coder. In this paper, It’s necessary design parameters were obtained by FLIR overall designing, The sound foundation of researching FLIR was constructed.