Magnetic Shape Memory Alloys as smart materials for micro-positioning devices.

Arnaud Hubert (1) , Nandish Calchand (1) , Yann Le Gorrec (1) , Jean-Yves Gauthier (2)

1 FEMTO-ST - Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174)
2 AMPERE - Ampère

In the field of microrobotics, actuators based on smart materials are predominant because of very good precision, integration capabilities and high compactness. This paper presents the main characteristics of Magnetic Shape Memory Alloys as new candidates for the design of micromechatronic devices. The thermo-magneto-mechanical energy conversion process is first presented followed by the adequate modeling procedure required to design actuators. Finally, some actuators prototypes realized at the Femto-ST institute are presented, including a push-pull bidirectional actuator. Some results on the control and performances of these devices conclude the paper.

Domaines: Micro et nanotechnologies/Microélectronique

Arnaud Hubert, Nandish Calchand, Yann Le Gorrec, Jean-Yves Gauthier. Magnetic Shape Memory Alloys as smart materials for micro-positioning devices.. Advanced Electromagnetics Symposium, AES'12., Apr 2012, TELECOM PARISTECH, Paris, France. pp.1-10. ⟨hal-00720674⟩