| 摘要 |
PROBLEM TO BE SOLVED: To provide a vibration actuator which adjusts a bandwidth of a vibration frequency at which a shaft member resonates and enables high efficient vibration output.SOLUTION: An vibration actuator includes a shaft member 1 having magnets 4a, 4b and an armature part 2 having at least one coil 5a, 5b. The one coil 5a, 5b includes a direct current coil 5a to which a direct current is supplied and an alternating current coil 5b to which an alternating current is supplied. A resonant band of the shaft member 1 may be adjusted by an interaction of magnetic flux occurring in the direct current coil 5a and magnetic flux of the magnets 4a, 4b of the shaft member 1. |
