Introduce a kind of focusing structure of space remote sensor

including harmonic drive and screw

line guide rail

compensate traditional focusing structures. According to the resistance torque calculation determined the motor’s model. Calculating the resolution of focusing structure is 0.43μm. The structure was experienced dynamic environment testing with whole machine

and compared focus precision after dynamic environment testing. The testing data indicate that the line tilt was less than 20″ and the displacement error was less than 5μm

met the requirement .Experimental results proved that this focusing structure was compact

high rigidity

well precision

meets using demand.