JPS60149243U - ultrasonic transducer - Google Patents

ultrasonic transducer

Info

Publication number
JPS60149243U
JPS60149243U JP3565284U JP3565284U JPS60149243U JP S60149243 U JPS60149243 U JP S60149243U JP 3565284 U JP3565284 U JP 3565284U JP 3565284 U JP3565284 U JP 3565284U JP S60149243 U JPS60149243 U JP S60149243U
Authority
JP
Japan
Prior art keywords
ultrasonic transducer
ultrasonic
piezoelectric plate
matching layer
acoustic matching
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
Application number
JP3565284U
Other languages
Japanese (ja)
Other versions
JPH0323697Y2 (en
Inventor
正 小島
Original Assignee
日本電波工業株式会社
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 by 日本電波工業株式会社 filed Critical 日本電波工業株式会社
Priority to JP3565284U priority Critical patent/JPS60149243U/en
Publication of JPS60149243U publication Critical patent/JPS60149243U/en
Application granted granted Critical
Publication of JPH0323697Y2 publication Critical patent/JPH0323697Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (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

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

第１図ａは圧電体板１の表面に交差指電極２゜３を設け
た状態を示す表面図、第１図すは同断面図、第１図Ｃは
圧電体板１中の分極の様子を示す同断面図、第２図ａは
他の例の表面励振型超音波トランスジューサの断面図、
第２図すはその電極配置を示す正面図、第３図ａは本考
案に係る表面励振型超音波トランスジューサの実施例を
示す断面図、第３図すはその電極配、置を示す同正面図
である。 １・・・圧電体板、２，３・・・交差指電極、４゛・・
・切込み溝、５り・媒質、６・・・音響マツチング層。 第２閉 ｆ／）） −第３鉛 、　　　　　　　　（（１）−−FIG. 1A is a surface view showing a state in which interdigital electrodes 2°3 are provided on the surface of the piezoelectric plate 1, FIG. 1 is a cross-sectional view of the same, and FIG. 1C is a state of polarization in the piezoelectric plate 1. FIG. 2a is a cross-sectional view of another example of a surface-excited ultrasonic transducer.
Fig. 2 is a front view showing the electrode arrangement, Fig. 3a is a sectional view showing an embodiment of the surface-excited ultrasonic transducer according to the present invention, and Fig. 3 is the same front view showing the electrode arrangement. It is a diagram. 1... Piezoelectric body plate, 2, 3... Interdigital electrode, 4゛...
- Cut groove, 5 - medium, 6... acoustic matching layer. 2nd closed f/)) - 3rd lead, ((1)--

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 圧電体板の表面に組の交差指電極を設け、該圧電体板の
表面とほぼ垂直方向にバルク波を発生さ・せ、超音波を
放射させる超音波トランスジューサにおいて、該圧電体
板の超音波放射面に音響マツチング層を設け、該音響マ
ツチング層の音響的厚さｔを、該超音波の波長λに対し
てｔ＝ｎ・λ／４（ただし、ｎは整数）としたことを特
徴とする超音波トランスジューサ。In an ultrasonic transducer, a pair of interdigital electrodes are provided on the surface of a piezoelectric plate, and a bulk wave is generated and ultrasonic waves are emitted in a direction substantially perpendicular to the surface of the piezoelectric plate. An acoustic matching layer is provided on the radiation surface, and the acoustic thickness t of the acoustic matching layer is set to t=n·λ/4 (where n is an integer) with respect to the wavelength λ of the ultrasonic wave. Ultrasonic transducer.
JP3565284U 1984-03-13 1984-03-13 ultrasonic transducer Granted JPS60149243U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3565284U JPS60149243U (en) 1984-03-13 1984-03-13 ultrasonic transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3565284U JPS60149243U (en) 1984-03-13 1984-03-13 ultrasonic transducer

Publications (2)

Publication Number Publication Date
JPS60149243U true JPS60149243U (en) 1985-10-03
JPH0323697Y2 JPH0323697Y2 (en) 1991-05-23

Family

ID=30540128

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3565284U Granted JPS60149243U (en) 1984-03-13 1984-03-13 ultrasonic transducer

Country Status (1)

Country Link
JP (1) JPS60149243U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51161046U (en) * 1975-06-14 1976-12-22
JPS51161045U (en) * 1975-06-14 1976-12-22

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51161046U (en) * 1975-06-14 1976-12-22
JPS51161045U (en) * 1975-06-14 1976-12-22

Also Published As

Publication number Publication date
JPH0323697Y2 (en) 1991-05-23

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