| 摘要 |
PURPOSE:To lighten a piezoelectric actuator, to enable fine displacement with high precision and to allow drive at low voltage by coupling two piezoelectric displacement means using piezoelectric transversal-effect elements components to form a T shape. CONSTITUTION:Piezoelectric displacement means 16, 17 are formed in bimorph constitution in which each pair of tabular piezoelectric transversal-effect elements 16A, 16B, 17A, 17B are laminated. These piezoelectric displacement means 16, 17 are combined to form a T shape through a method such as bonding and coupled integrally. An adapter 19 if fixed to an end section 17P not connected to the means 16 of the piezoelectric displacement means 17. The adapter 19 efficiently transmits the motion of a piezoelectric displacement unit 10 over an object to be driven, and a magnetic material and an abrasion-resistance material such as a rubber are used as the adapter 19. |
