2009, English, Article edition: Modeling of a new SMA micro-actuator for active endoscopy applications. Abadie, Joël; Chaillet, Nicolas; Lexcellent, C.

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Physical Description
  • text
Published
  • HAL - CCSD
  • 2009
Language
  • English

Edition details

Title
  • Modeling of a new SMA micro-actuator for active endoscopy applications.
Author
  • Abadie, Joël
  • Chaillet, Nicolas
  • Lexcellent, C.
Published
  • HAL - CCSD
  • 2009
Physical Description
  • text
Subjects
Notes
  • Shape memory alloys (SMA) are good candidates to actuate endoscope heads but the cooling problem must be solved particularly in confined situations. For these reasons, a new SMA micro-actuator specially designed for active endoscopy applications has been developed in our laboratory. This work is a new step in the approach of using integrated thermoelectric cooling with SMA actuators. In fact, the Peltier effect is very attractive in such a case because this reversible phenomenon reduces the overheating of the external environment and provides forced cooling that decreases the response time. In this paper the actuator design and its working principle are presented. A fine modeling of the coupled mechanical and thermal behaviors gives a better understanding of the physical phenomenon involved in the actuator. Finally an experimental prototype has been developed and tested in order to verify the model predictions.
  • HAL:hal-00380883, version 1
  • HAL:http:/​/​hal.archives-ouvertes.fr/​hal-00380883/​en/​
  • DOI:10.1016/​j.mechatronics.2008.11.010
Language
  • English
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