JPH0230698U - - Google Patents
Info
- Publication number
- JPH0230698U JPH0230698U JP10767688U JP10767688U JPH0230698U JP H0230698 U JPH0230698 U JP H0230698U JP 10767688 U JP10767688 U JP 10767688U JP 10767688 U JP10767688 U JP 10767688U JP H0230698 U JPH0230698 U JP H0230698U
- Authority
- JP
- Japan
- Prior art keywords
- vibrating body
- ring
- elements
- shaped piezoelectric
- face
- 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
- 229920003002 synthetic resin Polymers 0.000 claims description 2
- 239000000057 synthetic resin Substances 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Transducers For Ultrasonic Waves (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Description
第１図ないし第３図はこの考案に係る超音波マ
イクロホンの実施例を示すもので、第１図は縦断
面図、第２図は圧電型振動子部分を示す図、第３
図は同上圧電型振動子の製造工程の一例を示す工
程図、第４図は従来の超音波マイクロホンの縦断
面図である。
１：音響整合層（振動体）、１０：圧電型振動
子、１１ａ〜１１ｃ：リング状圧電素子、１２：
合成樹脂、１３ａ，１３ｂ：電極層。
1 to 3 show an embodiment of the ultrasonic microphone according to this invention, in which FIG. 1 is a longitudinal sectional view, FIG. 2 is a diagram showing a piezoelectric vibrator part, and FIG.
The figure is a process diagram showing an example of the manufacturing process of the piezoelectric vibrator, and FIG. 4 is a longitudinal sectional view of a conventional ultrasonic microphone. 1: Acoustic matching layer (vibrating body), 10: Piezoelectric vibrator, 11a to 11c: Ring-shaped piezoelectric element, 12:
Synthetic resin, 13a, 13b: electrode layer.
Claims (1)
する振動体と、該振動体に固着され厚み方向の振
動を電気・音響変換に利用する圧電型振動子とを
有する超音波マイクロホンにおいて、 前記圧電型振動子は、複数の同心状のリング状
圧電素子を当該各リング状圧電素子間の間隙に合
成樹脂を埋込んで一体的に構成するとともに当該
複数のリング状圧電素子は端面部で並列接続し、
当該端面を前記振動体に固着してなることを特徴
とする超音波マイクロホン。[Claims for Utility Model Registration] Comprising a vibrating body that vibrates in response to transmitted or received ultrasonic signals, and a piezoelectric vibrator that is fixed to the vibrating body and uses vibrations in the thickness direction for electrical/acoustic conversion. In the ultrasonic microphone, the piezoelectric vibrator is integrally constituted by a plurality of concentric ring-shaped piezoelectric elements with synthetic resin embedded in the gaps between the ring-shaped piezoelectric elements, and the plurality of ring-shaped piezoelectric The elements are connected in parallel at the end face,
An ultrasonic microphone characterized in that the end face is fixed to the vibrating body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10767688U JPH0230698U (en) | 1988-08-17 | 1988-08-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10767688U JPH0230698U (en) | 1988-08-17 | 1988-08-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0230698U true JPH0230698U (en) | 1990-02-27 |
Family
ID=31342306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10767688U Pending JPH0230698U (en) | 1988-08-17 | 1988-08-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0230698U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012100047A (en) * | 2010-11-01 | 2012-05-24 | Nec Corp | Oscillation device |
-
1988
- 1988-08-17 JP JP10767688U patent/JPH0230698U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012100047A (en) * | 2010-11-01 | 2012-05-24 | Nec Corp | Oscillation device |
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