JPH01141434U

JPH01141434U -

Info

Publication number: JPH01141434U
Application number: JP3706888U
Authority: JP
Priority date: 1988-03-23
Filing date: 1988-03-23
Publication date: 1989-09-28
Anticipated expiration: 2003-03-23
Also published as: JPH0650746Y2

Description

[Brief explanation of drawings]

第１図ａは本考案の一実施例に係る圧電振動子
用支持具の斜視図、第１図ｂは本考案の一実施例
に係わる圧電振動子の斜視図、第２図は本考案の
一実施例に係る圧電型重量検出器の組立てを示す
斜視図、第３図は従来例に係るエネルギー閉込め
型幅縦振動子の構造を示す図、第４図は従来例に
係る圧力検出器の概略構成図である。図中１，５１はエネルギー閉込め型幅振動子、
２，２′，３，３′，５２，５２，５２′，５３
，５３′は周辺電極、４，５４，５５は駆動電極
、１１，１２，１３，１４は支持部材、５６は支
持台、５７は加圧点、５８はシヤフト、５９は加
重受け金具、６０は保護用板ばねである。 FIG. 1a is a perspective view of a piezoelectric vibrator support according to an embodiment of the present invention, FIG. 1b is a perspective view of a piezoelectric vibrator according to an embodiment of the present invention, and FIG. 2 is a perspective view of a piezoelectric vibrator according to an embodiment of the present invention. A perspective view showing the assembly of a piezoelectric weight detector according to an embodiment, FIG. 3 is a diagram showing the structure of an energy confinement type width-longitudinal vibrator according to a conventional example, and FIG. 4 is a pressure detector according to a conventional example. FIG. In the figure, 1 and 51 are energy confinement type width oscillators;
2, 2', 3, 3', 52, 52, 52', 53
, 53' are peripheral electrodes, 4, 54, 55 are drive electrodes, 11, 12, 13, 14 are support members, 56 is a support stand, 57 is a pressure point, 58 is a shaft, 59 is a load receiving metal fitting, 60 is a It is a protective leaf spring.

Claims

[Claims for Utility Model Registration] 1. A pair of driving electrodes formed in the center of a thin plate made of a piezoelectric material having a rectangular front surface and a back surface facing the front surface, facing each other on the front surface and the back surface. an energy confinement type oscillator having
The vibrator is supported at both ends in the length direction of the surface of the vibrator and both ends in the length direction of the back surface opposite to both ends in the length direction of the surface. a support that supports at the center in the length direction and at the center in the width direction, and at the center in the length direction and at the center in the width direction of the back surface that is opposite to the center in the length direction and the center in the width direction; A piezoelectric weight detector comprising: a piezoelectric weight detector, wherein a load applied to both longitudinal ends of the vibrator is detected by a change in a resonance frequency of the vibrator. 2. An energy confinement type vibrator having a pair of driving electrodes formed in the center of a thin plate made of a piezoelectric material having a rectangular front surface and a back surface facing the front surface, and facing each other on the front surface and the back surface. A support for supporting the vibrator at one end in the length direction of the surface of the vibrator and one end in the length direction of the back surface opposite to the one end in the length direction of the surface. a first supporting member; a second supporting member for supporting the other longitudinal end of the front surface of the vibrator and the other longitudinal end of the back surface opposite to the other longitudinal end of the surface; a second support member interposed between the first support member and the second support member, a central portion in the longitudinal direction and a central portion in the width direction of the surface of the vibrator, and a length of the surface; A support for a piezoelectric vibrator, comprising: a third support member for supporting the central portion in the longitudinal direction and the central portion in the width direction of the back surface opposite to the central portion in the width direction; .