JPH0345670U - - Google Patents

Info

Publication number
JPH0345670U
JPH0345670U JP1989106613U JP10661389U JPH0345670U JP H0345670 U JPH0345670 U JP H0345670U JP 1989106613 U JP1989106613 U JP 1989106613U JP 10661389 U JP10661389 U JP 10661389U JP H0345670 U JPH0345670 U JP H0345670U
Authority
JP
Japan
Prior art keywords
additive
amount
electrode
piezoelectric body
peripheral edge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP1989106613U
Other languages
English (en)
Other versions
JP2500115Y2 (ja
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1989106613U priority Critical patent/JP2500115Y2/ja
Publication of JPH0345670U publication Critical patent/JPH0345670U/ja
Application granted granted Critical
Publication of JP2500115Y2 publication Critical patent/JP2500115Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)

Description

【図面の簡単な説明】
第1図は本考案の積層型圧電アクチユエータの
一実施例の構成を示す半分に切断した積層型圧電
アクチユエータの斜視図、第2図a〜cは本考案
のセラミツクス素子の製造行程を示す図、第3図
は第2図の製造行程に使用する圧電材料の製造方
法を示す行程図、第4図および第5図は従来の積
層型圧電アクチユエータを構成するセラミツクス
素子に発生するクラツクの様子を示す斜視図であ
る。 1……セラミツクス素子、2……印刷電極、3
……金属電極、4……外部電極、5……中央部、
6……中間部、7……外周部。

Claims (1)

  1. 【実用新案登録請求の範囲】 圧電体とこの圧電体の底面より小さい面積を持
    つ内部電極とが交互に積層されてなる圧電アクチ
    ユエータにおいて、 前記内部電極の中心付近は圧電体への添加剤の
    量を多くし、周縁部に向かうに従つて徐々に添加
    剤の量を減らし、電極周縁部近傍においては添加
    剤の量をゼロもしくは極力少なくしたことを特徴
    とする積層型圧電アクチユエータ。
JP1989106613U 1989-09-13 1989-09-13 積層型圧電アクチュエ―タ Expired - Lifetime JP2500115Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989106613U JP2500115Y2 (ja) 1989-09-13 1989-09-13 積層型圧電アクチュエ―タ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989106613U JP2500115Y2 (ja) 1989-09-13 1989-09-13 積層型圧電アクチュエ―タ

Publications (2)

Publication Number Publication Date
JPH0345670U true JPH0345670U (ja) 1991-04-26
JP2500115Y2 JP2500115Y2 (ja) 1996-06-05

Family

ID=31655339

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989106613U Expired - Lifetime JP2500115Y2 (ja) 1989-09-13 1989-09-13 積層型圧電アクチュエ―タ

Country Status (1)

Country Link
JP (1) JP2500115Y2 (ja)

Also Published As

Publication number Publication date
JP2500115Y2 (ja) 1996-06-05

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