Teh, Yee Harn; Featherstone, Roy
The small-signal frequency response of Shape Memory Alloy (SMA) actuator wire was inves-tigated in this paper, as a prelude to developing an improved motion controller for robotic ap-plications. A series of experiments were carried out, in which SMA wires were heated at fre-quencies of up to 2 kHz under a variety of dif-ferent tensions and thermal histories. The wire was connected to a diaphragm, so that small motions of the wire would produce acoustic emissions, which were detected and...[Show more]
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