TWO-DIMENSIONAL POINTING MOTOR

摘要

A spherical 2-D pointer motor provides for panning (sideways actuate motion) and tilt (yaw motion) and may be made smaller than one-cubic inch. The motor is preferably controlled by a microcomputer based controller using pulse-width modulation (PWM) to separately control each of its three coils (10) or (A), (B), (C). The coils (10) or (A), (B), (C) are arranged orthogonally to provide a singly unified torque vector which turns the rotor and accurately points it in the desired directions. The motor is especially adapted to carry a sensor such as a CCD array.