Accession Number : ADA269266

Title :   Magnetostrictive Actuators for Human Sensory Feedback.

Descriptive Note : Final rept. Jul 92-Jan 93,

Corporate Author : TECHNICAL RESEARCH ASSOCIATES INC SALT LAKE CITY UT

Personal Author(s) : Brimhall, Owen D. ; Knowlton, Daniel ; Curtin, Howard R.

Report Date : FEB 1993

Pagination or Media Count : 37

Abstract : The development of actuators with enhanced capabilities is critical to the achievement of sensory feedback systems for intuitive, real time human operation of telerobotic systems. The objective of this research project was to demonstrate feasibility of new actuators using active materials which will enhance the capabilities of dexterous, exoskeletal feedback systems for telerobotic applications. In Phase I, feasibility of several novel Terfenol-D magnetostrictive actuators were demonstrated. Several prototype actuators were fabricated and tested, including: resistive single axis brakes, resistive multiaxis (ball) brake joints, and linear motors. The new actuators are relatively efficient, responsive, small and exert high forces. The actuators provide proportional forces and are easily interfaced with digital electronics. Several of the actuators were integrated into a simple demonstration board. Phase II will pursue advanced development of proportional force resistive brake actuators and active linear motion actuators.... Hand exoskeletons, Telerobotic actuators, Magnetostrictive actuators, Terfenol-d, Force feedback, Active materials

Descriptors :   *ACTUATORS, *FEEDBACK, *ROBOTS, *MAGNETOSTRICTIVE ELEMENTS, BRAKES, DEMONSTRATIONS, ELECTRONICS, HANDS, HUMANS, MATERIALS, MOTION, MOTORS, OPERATION, PHASE, PROTOTYPES, REAL TIME, TIME, SENSORY DEPRIVATION, EXOSKELETON, PERFORMANCE(HUMAN), MAGNETIC BRAKES.

Subject Categories : Computer Systems Management and Standards

Distribution Statement : APPROVED FOR PUBLIC RELEASE