ultrasonic motor

Abstract

Abstract PURPOSE:To simplify the manufacture of an electrostrictive element and the assembling of a motor and to improve the driving efficiency of a supersonic motor by flattening the electrostrictive element mounting surface of a vibrator. CONSTITUTION:An electrostrictive element 3 is bonded to the outer periphery of a cylindrical vibrator 2. A movable element 1 is rotatably driven by generating elastic traveling wave at the vibrator 2 by means of the element 3. The outer peripheral surface of the vibrator 2 is formed in a polygonal shape due to the array of a flat surface 2a, and the element 3 is bonded to the flat surface 2a. The profile of the polygonal shape of the vibrator 2 is decided by a resonance frequency determined by the shape of the material.

Inventors

• 👤 Naoya Kaneda
• 👤 直也 金田

Bibliographic Details