Natural Heat-Sinking Control Method for High-Speed Actuation of the SMA

  title={Natural Heat-Sinking Control Method for High-Speed Actuation of the SMA},
  author={Chee Siong Loh and Hiroshi Yokoi and Tamio Arai},
This paper describes two methodologies for increasing the actuation speed of the shape memory alloy (SMA) actuator in ambient environment. The first method involves the implementation of a simple, light-weight heat sink, which consists only of a combination of an outer metal tube with the silicone grease, but able to cool the heated alloy effectively. The second method describes a high current pulse actuation that actuates the alloy fastly using pulses in the milliseconds order. We hypothesize… CONTINUE READING


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