JPS599696U - ultrasonic ceramic microphone - Google Patents
ultrasonic ceramic microphoneInfo
- Publication number
- JPS599696U JPS599696U JP10336682U JP10336682U JPS599696U JP S599696 U JPS599696 U JP S599696U JP 10336682 U JP10336682 U JP 10336682U JP 10336682 U JP10336682 U JP 10336682U JP S599696 U JPS599696 U JP S599696U
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical case
- microphone
- cylindrical
- ultrasonic ceramic
- case
- 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
Landscapes
- Transducers For Ultrasonic Waves (AREA)
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図は本考案の超音波セラミックマイクロホンの一実
施例を示す断面図、第２図は本考案の超音波セラミック
マイクロホンの他の実施例を示す 、断面−図、第
３図は本考案のマイクロホンと従来のマイクロホンとの
特性比較を行なったもので、ａは感度周波数特性、ｂは
指向特性を示した。尚、実線は本考案のマイクロホン、
点線は従来例のマイクロホンの特性を示した。第４図は
従来の超音波セラミックマイクロホンの断面図である。
１・・・円筒状ケース、ｌａ、１０ａ・・・内部天井面
、２・・・圧電磁器振動子、３・・・保護ケース、３ａ
・・・共 。
鳴部、４・・・ツバ部、５・・・弾性部材、６・・・端
子板、７．１３・・・金属ベース、８，８′・・・端子
、９，９′・・・リード線、１０・・・円錐台形状ケー
ス、１１・・・保護ケース、１２・・・内リング、１４
・・・樹脂部。Fig. 1 is a cross-sectional view showing one embodiment of the ultrasonic ceramic microphone of the present invention, Fig. 2 is a cross-sectional view showing another embodiment of the ultrasonic ceramic microphone of the present invention, and Fig. 3 is a cross-sectional view of the ultrasonic ceramic microphone of the present invention. This is a comparison of the characteristics of a microphone and a conventional microphone, where a shows the sensitivity frequency characteristic and b shows the directivity characteristic. In addition, the solid line is the microphone of this invention,
The dotted line indicates the characteristics of the conventional microphone. FIG. 4 is a sectional view of a conventional ultrasonic ceramic microphone. DESCRIPTION OF SYMBOLS 1... Cylindrical case, la, 10a... Internal ceiling surface, 2... Piezoelectric ceramic vibrator, 3... Protective case, 3a
···Both . Ring part, 4...Brim portion, 5...Elastic member, 6...Terminal board, 7.13...Metal base, 8,8'...Terminal, 9,9'...Lead Line, 10...Truncated conical case, 11...Protective case, 12...Inner ring, 14
...Resin part.
Claims (1)
って開放口を有する金属製の筒状ケースの内部天井面に
圧電磁器振動子を貼着し、筒状ケースと一体化したバイ
モルフ型の振動部を構成し、上面部の一部に合成樹脂製
又は金属製の共鳴部を一体に構成した保護ケースを、前
記筒状ケースの外側面に接しながら、前記筒状ケース頂
面と前記共鳴部の間に適度に空間をもたせた位置に固定
し、前記筒状ガースの開放口を弾性部材を介して、端子
板で密閉固定したことを特徴とする超音波セラミックマ
イクロホン。A bimorph type in which a piezoelectric ceramic vibrator is attached to the internal ceiling of a metal cylindrical case with a U-shaped, polygonal, or trapezoidal vertical cross section and an opening facing downward, and is integrated with the cylindrical case. A protective case, which constitutes a vibrating part and has a synthetic resin or metal resonance part integrally formed in a part of its upper part, is placed between the top surface of the cylindrical case and the An ultrasonic ceramic microphone, characterized in that it is fixed at a position with an appropriate space between resonance parts, and the open opening of the cylindrical girth is hermetically fixed with a terminal plate via an elastic member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10336682U JPS599696U (en) | 1982-07-07 | 1982-07-07 | ultrasonic ceramic microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10336682U JPS599696U (en) | 1982-07-07 | 1982-07-07 | ultrasonic ceramic microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS599696U true JPS599696U (en) | 1984-01-21 |
Family
ID=30243207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10336682U Pending JPS599696U (en) | 1982-07-07 | 1982-07-07 | ultrasonic ceramic microphone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS599696U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012077224A1 (en) * | 2010-12-10 | 2012-06-14 | 三菱電機株式会社 | Aerial ultrasonic sensor |
-
1982
- 1982-07-07 JP JP10336682U patent/JPS599696U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012077224A1 (en) * | 2010-12-10 | 2012-06-14 | 三菱電機株式会社 | Aerial ultrasonic sensor |
| JP5328990B2 (en) * | 2010-12-10 | 2013-10-30 | 三菱電機株式会社 | Aerial ultrasonic sensor |
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