Amplified active-materials actuator

Details Amplified active-materials actuator Amplified active-materials actuator

H - Electricity

02

N

H02N 2/12 (2006.01) B64C 13/50 (2006.01) H01L 41/09 (2006.01) H01L 41/12 (2006.01)

Patent

CA 2250502

An actuator, comprising a plurality of stacks of unit blocks of an active material of the piezoelectric, electrostrictive, or magnetostrictive type, which blocks are distributed so as to form a tubular structure, together with means enabling an electric or magnetic field to be applied to said unit blocks to cause said unit blocks to deform in such a manner that the tubular structure twists.

Actionneur, caractérisé en ce qu'il comporte une pluralité d'empilements de blocs élémentaires en un matériau actif de type piezoélectrique, électrostrictif ou magnétostrictif, qui sont répartis de façon à former une structure tubulaire, ainsi que des moyens permettant d'appliquer sur lesdits blocs élémentaires un champ électrique ou magnétique déformant lesdits blocs élémentaires de telle sorte que la structure tubulaire se vrille.

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