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A novel differential shape memory alloy actuator for position control

Published online by Cambridge University Press:  09 March 2009

Robert B. Gorbet  and
R. Andrew Russell
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Summary

This paper discusses a novel design for a rotary differential NiTi shape memory alloy actuator, which incorporates a mobile heat sink. The new mechanism is described in detail, and its performance in a position control system is compared with that of the same actuator without heat sink. Experimental results are presented which show an improvement in actuator response time, as well as closed-loop bandwidth. The design of the mechanism gives enhanced performance, without the increased power consumption associated with fixed heat sinks.

Keywords

Position controlShape memory alloyMobile heat sinkRobot applications
Type
Articles
Information
Robotica , Volume 13 , Issue 4 , July 1995 , pp. 423 - 430
Copyright
Copyright © Cambridge University Press 1995

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