A new kind of high integration drive modular for scanning mirror was developed. The modular can be used for a dynamical system of scanning mirror of space optics remote sensor. Based on the idea of integration of optics

mechanics and electronics

a right stepper motor

a harmonic reducer and 16 bit encoder were made up of the compact drive modular. Then the shafting precision

position precision and speed precision of the modular were analyzed and tested. According to the testing result

the shafting radial error was less than 3μm; the shafting end error was less than 1μm; position precision was less than 40"; the relative speed precision was 19% when the speed was 0.1°/s and the relative speed precision was 6.8% when the speed was 5°/s. The testing result proved that the drive modular was light

powerful

precise and satisfied for the scanning mirror.