JPH0177100U - - Google Patents
Info
- Publication number
- JPH0177100U JPH0177100U JP1987171493U JP17149387U JPH0177100U JP H0177100 U JPH0177100 U JP H0177100U JP 1987171493 U JP1987171493 U JP 1987171493U JP 17149387 U JP17149387 U JP 17149387U JP H0177100 U JPH0177100 U JP H0177100U
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic transducer
- piezoelectric element
- metal case
- opening
- terminal plate
- 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
- 239000002184 metal Substances 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 claims description 3
- 238000002604 ultrasonography Methods 0.000 description 1
Landscapes
- Transducers For Ultrasonic Waves (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Description
第１図は本考案の一実施例の空中超音波トラン
スジユーサ１０の底面図、第２図は空中超音波ト
ランスジユーサ１０の縦断面図、第３図は感度調
整用抵抗体１２の抵抗値に対する空中超音波トラ
ンスジユーサの感度特性を示すグラフ、第４図は
典型的な先行技術の空中超音波トランスジユーサ
９の縦断面図である。
１……金属ケース、２……圧電素子、４ａ，４
ｂ……リード端子、５……端子板、１０……空中
超音波トランスジユーサ、１１ａ，１１ｂ……電
極パターン、１２……感度調整用抵抗体。
FIG. 1 is a bottom view of an airborne ultrasonic transducer 10 according to an embodiment of the present invention, FIG. 2 is a longitudinal sectional view of the airborne ultrasonic transducer 10, and FIG. 3 is a resistance of the sensitivity adjustment resistor 12. FIG. 4 is a longitudinal cross-sectional view of a typical prior art airborne ultrasound transducer 9. 1...Metal case, 2...Piezoelectric element, 4a, 4
b... Lead terminal, 5... Terminal board, 10... Airborne ultrasonic transducer, 11a, 11b... Electrode pattern, 12... Resistor for sensitivity adjustment.
Claims (1)
され、この圧電素子に電気的に接続される一対の
リード端子を支持する電気絶縁性端子板が金属ケ
ースの前記開口に設けられている空中超音波トラ
ンスジユーサにおいて、 前記端子板の一表面には各リード端子毎に接続
された電極パターンが形成されると共に、これら
の電極パターン間にはチツプ状の感度調整用抵抗
体が介在されていることを特徴とする空中超音波
トランスジユーサ。[Claims for Utility Model Registration] A piezoelectric element is housed in a metal case with an opening on one side, and an electrically insulating terminal plate supporting a pair of lead terminals electrically connected to the piezoelectric element is installed in the opening of the metal case. In an airborne ultrasonic transducer installed in an airborne ultrasonic transducer, an electrode pattern connected to each lead terminal is formed on one surface of the terminal plate, and a chip-shaped sensitivity adjustment chip is formed between these electrode patterns. An aerial ultrasonic transducer characterized by having a resistor interposed therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987171493U JPH0177100U (en) | 1987-11-10 | 1987-11-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987171493U JPH0177100U (en) | 1987-11-10 | 1987-11-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0177100U true JPH0177100U (en) | 1989-05-24 |
Family
ID=31463373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987171493U Pending JPH0177100U (en) | 1987-11-10 | 1987-11-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0177100U (en) |
-
1987
- 1987-11-10 JP JP1987171493U patent/JPH0177100U/ja active Pending