JPH0166082U - - Google Patents

Info

Publication number
JPH0166082U
JPH0166082U JP1987160450U JP16045087U JPH0166082U JP H0166082 U JPH0166082 U JP H0166082U JP 1987160450 U JP1987160450 U JP 1987160450U JP 16045087 U JP16045087 U JP 16045087U JP H0166082 U JPH0166082 U JP H0166082U
Authority
JP
Japan
Prior art keywords
acoustic matching
viscoelastic material
material layer
piezoelectric ceramic
cylindrical 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.)
Granted
Application number
JP1987160450U
Other languages
Japanese (ja)
Other versions
JPH0543422Y2 (en
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 JP1987160450U priority Critical patent/JPH0543422Y2/ja
Publication of JPH0166082U publication Critical patent/JPH0166082U/ja
Application granted granted Critical
Publication of JPH0543422Y2 publication Critical patent/JPH0543422Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime 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を示す断面図、第２
図は実施例および従来例の特性を測定するための
装置を略図的に示す図、第３図は実施例の特性を
示す図、第４図は従来例の特性を示す図、第５図
は従来例、実施例および比較例の残響時間を説明
するための図である。 図において、１は空中超音波トランスジユーサ
、２は音響整合体、３は圧電セラミツク体、４は
筒状ケース、１１は粘弾性材料層、１２は拘束材
を示す。 Fig. 1 is a sectional view showing one embodiment of the present invention;
The figures schematically show the apparatus for measuring the characteristics of the embodiment and the conventional example, FIG. 3 shows the characteristics of the embodiment, FIG. 4 shows the characteristics of the conventional example, and FIG. It is a figure for explaining the reverberation time of a conventional example, an example, and a comparative example. In the figure, 1 is an airborne ultrasonic transducer, 2 is an acoustic matching body, 3 is a piezoelectric ceramic body, 4 is a cylindrical case, 11 is a viscoelastic material layer, and 12 is a restraint material.

Claims (1)

【実用新案登録請求の範囲】 (1) 板状の音響整合体と、 前記音響整合体の一方面に接着された圧電セラ
ミツク体と、 前記音響整合体の圧電セラミツク体が接着され
ている一方面側において、前記圧電セラミツク体
を囲撓するように該一方面に固着された筒状ケー
スと、 前記音響整合体および筒状ケースの側面に付与
された粘弾性材料層と、 前記粘弾性材料層を音響整合体および筒状ケー
スの外面に保持するために、前記粘弾性材料層の
周囲に貼り付けられた拘束材とを備えることを特
徴とする空中超音波トランスジユーサ。 (2) 前記粘弾性材料層および拘束材は、粘弾性
材料が基材の一方面に付与された粘着テープによ
り構成されている、実用新案登録請求の範囲第１
項記載の空中超音波トランスジユーサ。 (3) 前記板状の音響整合体が円板状の形状を有
し、前記筒状ケースは該円板と同一外径の円筒体
よりなる、実用新案登録請求の範囲第１項または
第２項記載の空中超音波トランスジユーサ。[Claims for Utility Model Registration] (1) A plate-shaped acoustic matching body, a piezoelectric ceramic body bonded to one side of the acoustic matching body, and one side of the acoustic matching body to which the piezoelectric ceramic body is bonded. a cylindrical case fixed to one side of the piezoelectric ceramic body so as to surround the piezoelectric ceramic body; a viscoelastic material layer applied to the acoustic matching body and a side surface of the cylindrical case; and a viscoelastic material layer. An airborne ultrasonic transducer comprising an acoustic matching body and a restraining material attached around the viscoelastic material layer to hold the viscoelastic material layer on the outer surface of the cylindrical case. (2) The viscoelastic material layer and the restraining material are constituted by an adhesive tape in which a viscoelastic material is applied to one side of a base material.
The airborne ultrasonic transducer described in . (3) Claim 1 or 2, wherein the plate-shaped acoustic matching body has a disk-like shape, and the cylindrical case is a cylindrical body having the same outer diameter as the disk. The airborne ultrasonic transducer described in .
JP1987160450U 1987-10-20 1987-10-20 Expired - Lifetime JPH0543422Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987160450U JPH0543422Y2 (en) 1987-10-20 1987-10-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987160450U JPH0543422Y2 (en) 1987-10-20 1987-10-20

Publications (2)

Publication Number Publication Date
JPH0166082U true JPH0166082U (en) 1989-04-27
JPH0543422Y2 JPH0543422Y2 (en) 1993-11-01

Family

ID=31442528

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987160450U Expired - Lifetime JPH0543422Y2 (en) 1987-10-20 1987-10-20

Country Status (1)

Country Link
JP (1) JPH0543422Y2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002058097A (en) * 2000-06-02 2002-02-22 Matsushita Electric Works Ltd Ultrasonic oscillator
JP2002204498A (en) * 2000-12-28 2002-07-19 Ngk Spark Plug Co Ltd Ultrasonic wave sensor
JP2009055456A (en) * 2007-08-28 2009-03-12 Nippon Ceramic Co Ltd Ultrasonic wave transceiver

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5418897U (en) * 1977-07-07 1979-02-07

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002058097A (en) * 2000-06-02 2002-02-22 Matsushita Electric Works Ltd Ultrasonic oscillator
JP2002204498A (en) * 2000-12-28 2002-07-19 Ngk Spark Plug Co Ltd Ultrasonic wave sensor
JP2009055456A (en) * 2007-08-28 2009-03-12 Nippon Ceramic Co Ltd Ultrasonic wave transceiver

Also Published As

Publication number Publication date
JPH0543422Y2 (en) 1993-11-01

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