JPS5936000U - electroacoustic transducer - Google Patents
electroacoustic transducerInfo
- Publication number
- JPS5936000U JPS5936000U JP13049582U JP13049582U JPS5936000U JP S5936000 U JPS5936000 U JP S5936000U JP 13049582 U JP13049582 U JP 13049582U JP 13049582 U JP13049582 U JP 13049582U JP S5936000 U JPS5936000 U JP S5936000U
- Authority
- JP
- Japan
- Prior art keywords
- electroacoustic transducer
- return electrode
- electrode
- gap
- main electrode
- 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
Links
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
第１図は従来の電気音響変換装置を示す平面図、第２図
は電気音響変換装置を用いた発振回路の１例を示す回路
図、第３図は電気音響変換装置における寸法し、寸法１
と主電極、帰還電極間の静電容量との関係を説明するた
めの平面図、第４図は寸法りと静電容量Ｃとの関係を示
すグラフ、第５図ｃ１寸法１と静電容量Ｃとの関係を示
すグラフ、第６図は本考案の実施例に対する比較例であ
って帰還電極を圧電磁器振動子の周縁部に沿って設けた
構造を示す平面図、第７図は本考案に係る電気音響変換
装置の第１実施例を示す平面図、第８図は本考案の第２
実施例を示す平面図、第９図及び第１０図は第８図の電
気音響変換装置の使用例を示す平面図である。
１、ＩＢ乃至ＩＤ・・・圧電磁器振動子、２，２Ａ乃至
２Ｄ・・・主電極、３，３Ａ乃至３Ｃ・・・帰還電極、
３Ｄ、 ３Ｅ・・・帰還電極部、４，４Ａ乃至４Ｅ・
・・間隙、１０．１１・・・導電性ペイント。Fig. 1 is a plan view showing a conventional electroacoustic transducer, Fig. 2 is a circuit diagram showing an example of an oscillation circuit using the electroacoustic transducer, and Fig. 3 shows the dimensions of the electroacoustic transducer.
Figure 4 is a graph showing the relationship between dimensions and capacitance C. Figure 5 is a graph showing the relationship between dimension 1 and capacitance. 6 is a comparative example of the embodiment of the present invention, and is a plan view showing a structure in which a return electrode is provided along the periphery of a piezoelectric ceramic vibrator, and FIG. 7 is a graph showing the relationship between C and C. FIG. 8 is a plan view showing the first embodiment of the electroacoustic transducer according to the present invention.
FIGS. 9 and 10 are plan views showing examples of use of the electroacoustic transducer shown in FIG. 8. FIGS. 1, IB to ID... piezoelectric ceramic vibrator, 2, 2A to 2D... main electrode, 3, 3A to 3C... return electrode,
3D, 3E... Return electrode section, 4, 4A to 4E.
... Gap, 10.11... Conductive paint.
Claims (4)
離して設けた３端子型電気音響変換装置において、前記
主電極と帰還電極との間隙の少なくとも一部を極めて微
少に形成したことを特徴、 とする電気音響変換装置
。(1) In a three-terminal electroacoustic transducer in which a main electrode and a return electrode are separately provided on one surface of a piezoelectric ceramic vibrator, at least a part of the gap between the main electrode and the return electrode is formed to be extremely small. An electroacoustic transducer characterized by:
る実用新案登録請求の範囲第１項記載の電気音響変換装
置。(2) The electroacoustic transducer according to claim 1, wherein the minute gap is formed to have a size of 50μ to 400μ.
Ｆ〜２２０ｐＦとな名如く前記微少間隙を設けた実用新
案登録請求の範囲第１項記載の電気音響変換装置。(3) The capacitance between the main electrode and the return electrode is 80p
2. The electroacoustic transducer according to claim 1, wherein the minute gap is between F and 220 pF.
第１の帰還電極部と、幅広間隙の第２の帰還電極部とな
し、両帰還電極部の接続によって主電極と帰還電極間の
容量を調節する如く構成してなる実用新案登録請求の範
囲第１項記載の電気音響変換装置。(4) The return electrode has a first return electrode part with a small gap with respect to the main electrode, and a second return electrode part with a wide gap, and the connection between the two return electrode parts creates a gap between the main electrode and the return electrode. The electroacoustic transducer according to claim 1, which is configured to adjust the capacity of the electroacoustic transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13049582U JPS5936000U (en) | 1982-08-28 | 1982-08-28 | electroacoustic transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13049582U JPS5936000U (en) | 1982-08-28 | 1982-08-28 | electroacoustic transducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5936000U true JPS5936000U (en) | 1984-03-06 |
| JPH0110080Y2 JPH0110080Y2 (en) | 1989-03-22 |
Family
ID=30295331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13049582U Granted JPS5936000U (en) | 1982-08-28 | 1982-08-28 | electroacoustic transducer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5936000U (en) |
-
1982
- 1982-08-28 JP JP13049582U patent/JPS5936000U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0110080Y2 (en) | 1989-03-22 |
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