JPS59118323U - Temperature compensated electromechanical transducer - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来の温度補償電気機械変換子を示す斜視図、
第２図は本考案の一実施例を示す斜視図および第３図は
圧電複合体の幅の寸法比と等価インダクタンスとの関係
を示す図である。 図において、１．　２．　６．　７・・・圧電磁器板、
３．−８・・・誘電体板、４．５・・・恒弾性合金。FIG. 1 is a perspective view showing a conventional temperature-compensated electromechanical transducer;
FIG. 2 is a perspective view showing an embodiment of the present invention, and FIG. 3 is a diagram showing the relationship between the width dimension ratio and the equivalent inductance of the piezoelectric composite. In the figure, 1. 2. 6. 7...piezoelectric ceramic plate,
3. -8...Dielectric plate, 4.5... Constant elastic alloy.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] それぞれ残留分極の方向が長さ方向と一致し長さ方向に
厚みすべり変位を生じこの変位が相互に逆方向になるよ
うに配置された２枚の厚みすべり圧電磁器板およびこれ
ら゛の厚みすべり圧電磁器板の間に挾み込まれた１枚の
誘電体板を有する圧電複合体と、この圧電複合体を挾み
込む２枚の弾性材とを備え、前記２枚の圧電磁器板と誘
電体板との長さおよび厚さを等しくし、該２枚の圧電磁
器、　　　板の幅Ｗ１と誘電体板の幅Ｗ２との比Ｗｇ／
Ｗｔを０．６〜０．９の範囲に選んだことを特徴とする
温度補償電気機械変換子。Two thickness-slip piezoelectric ceramic plates arranged so that the direction of their residual polarization coincides with the length direction, causing thickness-slip displacement in the length direction, and the displacements being in opposite directions, and these thickness-slip piezoelectric plates. A piezoelectric composite having one dielectric plate sandwiched between ceramic plates, and two elastic members sandwiching the piezoelectric composite, the piezoelectric ceramic plate and the dielectric plate The length and thickness of the two piezoelectric ceramics are equal, and the ratio of the width W1 of the plate to the width W2 of the dielectric plate Wg/
A temperature-compensated electromechanical transducer characterized in that Wt is selected in the range of 0.6 to 0.9.