JPS63182558U

JPS63182558U -

Info

Publication number: JPS63182558U
Application number: JP7351987U
Authority: JP
Priority date: 1987-05-16
Filing date: 1987-05-16
Publication date: 1988-11-24

Description

[Brief explanation of the drawing]

第１図乃至第１２図において本考案の実施例を
示し、第１図Ａは圧電アクチユエータの正面図、
第１図Ｂは中心軸に沿つた縦断面概念図、第２図
は第４図のＡ−Ａ線断面図、第３図は第１図のＢ
−Ｂ線断面図、第４図は圧電フイルムの正面図、
第５図乃至第８図は駆動原理を説明するための図
、第９図は駆動電圧の特性図、第１０図はセンサ
電圧の特性図、第１１図はマニユピレータの断面
図、第１２図は人体筋のモデル図である。１……アクチユエータ本体、２……圧電フイル
ム、３……圧電体、４，５……導電部。 An embodiment of the present invention is shown in FIGS. 1 to 12, and FIG. 1A is a front view of a piezoelectric actuator;
Figure 1B is a conceptual longitudinal cross-sectional view along the central axis, Figure 2 is a cross-sectional view taken along line A-A in Figure 4, and Figure 3 is B in Figure 1.
-B sectional view, Figure 4 is a front view of the piezoelectric film,
Figures 5 to 8 are diagrams for explaining the driving principle, Figure 9 is a characteristic diagram of driving voltage, Figure 10 is a characteristic diagram of sensor voltage, Figure 11 is a cross-sectional view of the manipulator, and Figure 12 is It is a model diagram of human body muscles. DESCRIPTION OF SYMBOLS 1... Actuator main body, 2... Piezoelectric film, 3... Piezoelectric body, 4, 5... Conductive part.

Claims

[Scope of utility model registration request]

The actuator body is constructed by wrapping a piezoelectric film having conductive parts on both sides in the thickness direction of a piezoelectric body polarized in the thickness direction in a substantially coil shape, and an axial force is applied in the direction of the central axis of the actuator body. A piezoelectric actuator, wherein at least one of both ends of the actuator body is connected to an actuated part, and a voltage applied to the conductive part is controlled.