Application of magnetic smart materials to aerospace motion control

摘要

Energen, Inc. has developed linear actuators and linear stepper motors based on magnetostrictive materials. These devices are designed to operate efficiently in harsh vacuum and cryogenic environments. They provide submicron positioning resolution over a range of motion of 20 mm or more. The linear actuators have high bandwidth and a short stroke making them ideal for active vibration damping high speed optical positioning. The stepper motors have a long stroke and will hold position when powered off.