JPS648834U - - Google Patents
Info
- Publication number
- JPS648834U JPS648834U JP10365487U JP10365487U JPS648834U JP S648834 U JPS648834 U JP S648834U JP 10365487 U JP10365487 U JP 10365487U JP 10365487 U JP10365487 U JP 10365487U JP S648834 U JPS648834 U JP S648834U
- Authority
- JP
- Japan
- Prior art keywords
- electrostrictive effect
- piezoelectric
- recess
- internal electrode
- resonant part
- 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.)
- Pending
Links
- 230000000694 effects Effects 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims 2
- 230000000994 depressogenic effect Effects 0.000 claims 1
Landscapes
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Description
第１図は本考案の実施例の縦断側面図、第２図
はその組立過程を示す分解図、第３図および第４
図はインピーダンス周波数特性を示すグラフ、第
５図は別の実施例を示す縦断側面図、第６図およ
び第７図はその分解図、第８図および第１０図は
得られた電歪効果素子の特性を調べるためのそれ
ぞれ別の実験装置の概略図、第９図は第８図に示
す実験装置によつて得られた圧電ノイズ特性グラ
フ、第１１図〜第１５図はそれぞれ別の実施例の
縦断側面図、第１６図は従来例の縦断側面図であ
る。
１０，２０は圧電共振部、１１，２１は内部電
極、１２，２２は外部電極、１３，２７，４０，
４１は凹部、２５，４２，４３は脚部である。
Fig. 1 is a vertical sectional side view of an embodiment of the present invention, Fig. 2 is an exploded view showing the assembly process, and Figs. 3 and 4.
The figure is a graph showing impedance frequency characteristics, Figure 5 is a vertical side view showing another example, Figures 6 and 7 are exploded views thereof, and Figures 8 and 10 are the obtained electrostrictive effect elements. FIG. 9 is a piezoelectric noise characteristic graph obtained by the experimental device shown in FIG. FIG. 16 is a vertical side view of a conventional example. 10, 20 are piezoelectric resonance parts, 11, 21 are internal electrodes, 12, 22 are external electrodes, 13, 27, 40,
41 is a recessed portion, and 25, 42, and 43 are leg portions.
Claims (1)
する外部電極とを有する電歪効果素子において、 素子を固定する基板側の面の少なくとも内部電
極に対応する部分に、当該面を基板から離すため
の凹部を形成した電歪効果素子。 (2) 前記凹部が、前記圧電共振部自体の窪みで
形成されている実用新案登録請求の範囲第１項記
載の電歪効果素子。 (3) 前記凹部が、前記外部電極に形成された脚
部により、前記圧電共振部が相対的に窪むことに
よつて形成されている実用新案登録請求の範囲第
１項記載の電歪効果素子。 (4) 前記圧電共振部内部に振動伝播防止用の空
洞を有している実用新案登録請求の範囲第１項記
載の電歪効果素子。[Claims for Utility Model Registration] (1) Electrostrictive effect having a piezoelectric resonant part, an internal electrode embedded in the piezoelectric resonant part, and an external electrode formed on the side surface of the piezoelectric resonant part and continuous with the internal electrode. An electrostrictive effect element in which a concave portion is formed in at least a portion of a surface of a substrate side to which the device is fixed, corresponding to an internal electrode, to separate the surface from the substrate. (2) The electrostrictive effect element according to claim 1, wherein the recess is formed by a recess of the piezoelectric resonator itself. (3) The electrostrictive effect according to claim 1, wherein the recess is formed by the piezoelectric resonator being relatively depressed by the legs formed on the external electrode. element. (4) The electrostrictive effect element according to claim 1, which has a cavity for preventing vibration propagation inside the piezoelectric resonator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10365487U JPS648834U (en) | 1987-07-06 | 1987-07-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10365487U JPS648834U (en) | 1987-07-06 | 1987-07-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS648834U true JPS648834U (en) | 1989-01-18 |
Family
ID=31334683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10365487U Pending JPS648834U (en) | 1987-07-06 | 1987-07-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS648834U (en) |
-
1987
- 1987-07-06 JP JP10365487U patent/JPS648834U/ja active Pending