JPS61139098U

JPS61139098U -

Info

Publication number: JPS61139098U
Application number: JP2161785U
Authority: JP
Priority date: 1985-02-18
Filing date: 1985-02-18
Publication date: 1986-08-28

Description

[Brief explanation of drawings]

第１図は本考案に係る超音波探触子の斜視図、
第２図は同じく音響整合層の構造を示す要部拡大
斜視図、第３図は従来の超音波探触子の斜視図、
第４図は同じく超音波振動子部分を示すため一部
を除いて示した平面図、第５図は音響整合層の構
造を示す要部拡大斜視図、第６図は同じく超音波
パルス波形図、第７図は同じく周波数一感度特性
図、第８図は本考案に係る超音波探触子の超音波
パルス波形図、第９図は同じくその周波数一感度
特性図である。１……音響ダンパ部材、２……超音波振動子群
、２１……超音波振動子、３……音響整合層、３
１……第１整合層、３２……第２整合層、３３…
…第３整合層。 FIG. 1 is a perspective view of an ultrasound probe according to the present invention;
FIG. 2 is an enlarged perspective view of the main part showing the structure of the acoustic matching layer, and FIG. 3 is a perspective view of a conventional ultrasound probe.
Fig. 4 is a plan view with some parts removed to show the ultrasonic transducer part, Fig. 5 is an enlarged perspective view of the main part showing the structure of the acoustic matching layer, and Fig. 6 is an ultrasonic pulse waveform diagram. , FIG. 7 is a frequency-sensitivity characteristic diagram, FIG. 8 is an ultrasonic pulse waveform diagram of the ultrasonic probe according to the present invention, and FIG. 9 is a frequency-sensitivity characteristic diagram thereof. DESCRIPTION OF SYMBOLS 1... Acoustic damper member, 2... Ultrasonic transducer group, 21... Ultrasonic transducer, 3... Acoustic matching layer, 3
1...First matching layer, 32...Second matching layer, 33...
...Third matching layer.

Claims

[Claims for Utility Model Registration] (1) In an ultrasonic probe in which ultrasonic transducers are arranged on an acoustic damper member and an acoustic matching layer is laminated on the ultrasonic transducers, the acoustic matching layer comprises: An ultrasonic probe comprising a stack of at least three matching layers having different acoustic impedances. (2) The acoustic matching layer has an acoustic impedance that increases from the first matching layer to the third matching layer when counted from the ultrasonic transducer side as a first matching layer, a second matching layer, and a third matching layer. 1. The ultrasonic probe according to claim 1, wherein the ultrasonic probe is characterized in that the angle gradually decreases. (3) The ultrasonic probe according to claim 2, wherein the first matching layer has an acoustic impedance of 13 to 14×10 ⁶ Kg/sm ² . (4) The ultrasonic probe according to claim 3, wherein the first matching layer is mainly composed of glass. (5) The second matching layer has an acoustic impedance of 7 to 8×10 ⁶ Kg/sm ² as claimed in claim 2, 3, or 4 of the utility model registration claim. Ultrasonic probe. (6) The ultrasonic probe according to claim 5, wherein the second matching layer is mainly composed of an epoxy resin containing metal powder. (7) The third matching layer has an acoustic impedance of 3 to 5×10 ⁶ Kg/sm ² Utility model registration claims 2, 3, 4, and 5 The ultrasonic probe according to item 6 or item 6. (8) The ultrasonic probe according to claim 7, wherein the third matching layer is made of an epoxy resin as a main component.