| 摘要 |
A stabilized platform having five degrees of freedom utilizes a platform supported on a base by a spherical bearing which permits movement about roll, pitch and yaw axes. A triaxis torquer has a non-magnetic stator depending from the platform, permanent magnet rotors disposed on the base which produce a magnetic field through the stator, and a set of electrical windings attached to the stator. Energizing the windings selectively produces torque in roll, pitch and yaw. A mirror gimbal and drive system on the platform provides movement in elevation of a mirror. A motor is provided for rotating the base in azimuth relative to its mounting in a vehicle or the like. A set of rate gyroscopes mounted on the platform and a set of resolvers provide rate of movement of the platform and gimbal, and position information to a servo system which controls the torquers and drive systems to stabilize the platform in roll, pitch and yaw, and to position the mirror in elevation and azimuth. Laser and infrared optical devices may be mounted on the platform and coupled by the mirror to a desired line of sight. |
