Title :
Feedback linearization for SMA (shape memory alloy)
Author :
Arai, Kazuhiko ; Aramaki, S. ; Yanagisawa, Kazulaisa
Author_Institution :
Micro-Syst. Lab., Olympus Opt. Co. Ltd., Tokyo, Japan
Abstract :
The problem of the SMA (shape memory alloy) which is appropriate actuator for micromanipulator is its hysteresis characteristic. To get a high controllability of SMA, feedback linearization method that is based on the continuous modeling of SMA was applied. As the result easily designed nonlinear feedback system was achieved. Furthermore, this control method was applied to the control of two-link SMA micromanipulator and ±0.5 mm positioning accuracy was achieved
Keywords :
controllability; feedback; hysteresis; linearisation techniques; manipulators; microactuators; nonlinear control systems; shape memory effects; SMA; actuator; controllability; feedback linearization; hysteresis characteristic; nonlinear feedback system; shape memory alloy; two-link SMA micromanipulator; Capacitive sensors; Communication cables; Feedback; Hysteresis; Shape memory alloys; Strips; Temperature control; Temperature sensors; Thermal conductivity;
Conference_Titel :
SICE '95. Proceedings of the 34th SICE Annual Conference. International Session Papers
Conference_Location :
Hokkaido
Print_ISBN :
0-7803-2781-0
DOI :
10.1109/SICE.1995.526714
