| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rotating and revolving magnetostrictive multi-shaft drive actuator which can be reduced in size and simplified. <P>SOLUTION: The magnetostrictive multi-shaft drive actuator comprises a spherical-shaped rotation member 8 made of a magnetic body and capable of rotating and revolving, at least two magnetostrictive members 2, a coil 4 wound around the magnetostrictive members, and a permanent magnet 6 for holding the rotation member and applying a bias magnetic field onto the magnetostrictive members. The magnetostrictive members are deformed by an AC magnetic field and a bias magnetic field, and the magnetostrictive members are so arranged as to be in parallel with each other in the deformation direction; one end 2a of the magnetostrictive member which is brought into contact with each rotating member, while the other end 2b is fixed so as to transmit the deformation of the magnetostrictive member to the rotation member; and the permanent magnets are so arranged as to energize the rotating member toward one end of the magnetostrictive member by the magnetic force. <P>COPYRIGHT: (C)2009,JPO&INPIT |
