APPARATUS FOR SMALL SIZED SMART ACTUATOR AND THE METHOD THEREFOR

摘要

PURPOSE: A small smart actuator device and a sensing method thereof are provided to senses a magnetic reaction force and generate an inertial vibration due to magnetic reaction force by using piezoelectric materials and solenoid materials with a hybrid type. CONSTITUTION: An actuator unit changes supplied electricity to a magnetic field to generate a magnetic reaction force. A sensing unit uses a piezoelectric phenomenon which changes a shape by the magnetic reaction force. The actuator unit is a first magnetic force generator(110) in which a solenoid coil is arranged. A second magnetic force generator(210) is magnetically adjacent to the first magnetic generator. A piezoelectric layer(220) changes the shape by the magnetic reaction force. An elastic unit(230) is connected to the piezoelectric layer.