JPH01102786U - - Google Patents

Info

Publication number
JPH01102786U
JPH01102786U JP19832887U JP19832887U JPH01102786U JP H01102786 U JPH01102786 U JP H01102786U JP 19832887 U JP19832887 U JP 19832887U JP 19832887 U JP19832887 U JP 19832887U JP H01102786 U JPH01102786 U JP H01102786U
Authority
JP
Japan
Prior art keywords
piezoelectric element
metal case
terminal plate
ultrasonic transducer
transducer
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
Application number
JP19832887U
Other languages
Japanese (ja)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP19832887U priority Critical patent/JPH01102786U/ja
Publication of JPH01102786U publication Critical patent/JPH01102786U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Transducers For Ultrasonic Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

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の縦断面図、第２図は第１図の切
断面線―から見た断面図、第３図はユニモル
フ型振動体の振動状態を示す図、第４図１は本考
案のパルス立下がり特性を示すオシロ波形図、第
４図２は従来のパルス立下がり特性を示すオシロ
波形図、第５図は従来の空中超音波トランスジユ
ーサ１の縦断面図である。 １０……空中超音波トランスジユーサ、１１…
…金属ケース、１１ａ……底部、１２……圧電素
子、１３ａ，１３ｂ……リード端子、１４……電
気絶縁性端子部、１８……弾性接着剤。 FIG. 1 is a longitudinal sectional view of an airborne ultrasonic transducer 10 according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the cutting plane line of FIG. Figure 4 shows the vibration state, Figure 4 1 is an oscilloscope waveform diagram showing the pulse falling characteristic of the present invention, Figure 4 2 is an oscilloscope waveform diagram showing the conventional pulse falling characteristic, and Figure 5 shows the conventional aerial ultrasonic wave. FIG. 2 is a longitudinal cross-sectional view of the transducer 1. FIG. 10...Aerial ultrasound transducer, 11...
...metal case, 11a...bottom, 12...piezoelectric element, 13a, 13b...lead terminal, 14...electrically insulating terminal portion, 18...elastic adhesive.

Claims (1)

【実用新案登録請求の範囲】 一方端が開口した有底筒状の金属ケースの底部
内面に圧電素子が貼着され、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
絶縁性端子板が前記開口を覆つて設けられて金属
ケース内が密閉構造とされる空中超音波トランス
ジユーサにおいて、 前記底部内面には圧電素子の外周面よりも外方
側でかつほぼノードラインに沿つて弾性接着剤が
塗布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。[Claim for Utility Model Registration] A piezoelectric element is affixed to the inner surface of the bottom of a cylindrical metal case with an open end and an electrical insulator that supports a pair of lead terminals that are electrically connected to the piezoelectric element. In an airborne ultrasonic transducer in which a terminal plate is provided to cover the opening and the inside of the metal case has a sealed structure, the inner surface of the bottom part is provided with a terminal plate located outwardly from the outer circumferential surface of the piezoelectric element and approximately at the node line. An airborne ultrasonic transducer characterized in that an elastic adhesive is applied along the length of the transducer.
JP19832887U 1987-12-25 1987-12-25 Pending JPH01102786U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19832887U JPH01102786U (en) 1987-12-25 1987-12-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19832887U JPH01102786U (en) 1987-12-25 1987-12-25

Publications (1)

Publication Number Publication Date
JPH01102786U true JPH01102786U (en) 1989-07-11

Family

ID=31488845

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19832887U Pending JPH01102786U (en) 1987-12-25 1987-12-25

Country Status (1)

Country Link
JP (1) JPH01102786U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009055456A (en) * 2007-08-28 2009-03-12 Nippon Ceramic Co Ltd Ultrasonic transducer
JP2019114960A (en) * 2017-12-25 2019-07-11 京セラ株式会社 Ultrasonic sensor
JP2022063540A (en) * 2020-10-12 2022-04-22 Tdk株式会社 Ultrasonic transducer
JP2022140152A (en) * 2021-03-12 2022-09-26 日本セラミック株式会社 ultrasonic transmitter and receiver

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5939608B2 (en) * 1975-12-17 1984-09-25 アメリカン チエ−ン アンド ケ−ブル カンパニ− インコ−ポレイテツド Vacuum pad equipment

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5939608B2 (en) * 1975-12-17 1984-09-25 アメリカン チエ−ン アンド ケ−ブル カンパニ− インコ−ポレイテツド Vacuum pad equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009055456A (en) * 2007-08-28 2009-03-12 Nippon Ceramic Co Ltd Ultrasonic transducer
JP2019114960A (en) * 2017-12-25 2019-07-11 京セラ株式会社 Ultrasonic sensor
JP2022063540A (en) * 2020-10-12 2022-04-22 Tdk株式会社 Ultrasonic transducer
JP2022140152A (en) * 2021-03-12 2022-09-26 日本セラミック株式会社 ultrasonic transmitter and receiver

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