JPS6135500U

JPS6135500U - Ultrasonic transducer

Info

Publication number: JPS6135500U
Application number: JP11908984U
Authority: JP
Inventors: 正晴小田
Original assignee: 株式会社村田製作所
Priority date: 1984-07-31
Filing date: 1984-07-31
Publication date: 1986-03-04

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

[Brief explanation of the drawing]

第１図はこの考案に係る超音波送受波器の断面図、第２
図は同上に使用する第２防振材の斜視図、第３図は同上
要部の拡大断面図、第４図は従来の超音波送波器を示す
断面図、第５図は同上の平面図、第６図は同上における
スクリーン取付部分の拡大断面図、第７図は従来のパル
ス立下がり特性図、第８図はこの考案のパルス立下がり
特性図である。１１・・・外部ケース、１２・・・第１防振材、１３・
・・バイモルフ振動子、１４・・・共振子、１５・・・
スクリーン、１６・・・第２防振材、１７・・・折曲片
、１８・・・端子板、１９・・・吸音材、２０・・・端
子、２１・・・リード線。Figure 1 is a sectional view of the ultrasonic transducer according to this invention, Figure 2
The figure is a perspective view of the second vibration isolator used in the above, Figure 3 is an enlarged sectional view of the main parts of the same, Figure 4 is a sectional view showing a conventional ultrasonic transmitter, and Figure 5 is a plan view of the same. 6 is an enlarged cross-sectional view of the screen attachment part in the same as above, FIG. 7 is a conventional pulse fall characteristic diagram, and FIG. 8 is a pulse fall characteristic diagram of this invention. DESCRIPTION OF SYMBOLS 11... External case, 12... First vibration isolating material, 13.
...Bimorph resonator, 14... Resonator, 15...
Screen, 16... Second vibration isolating material, 17... Bent piece, 18... Terminal plate, 19... Sound absorbing material, 20... Terminal, 21... Lead wire.

Claims

[Scope of utility model registration request]

A vibrator and a resonator are housed inside an outer case, and the outer periphery of the resonator is supported by a first vibration isolator and a second vibration isolator provided along the inner peripheral surface of the outer case. An ultrasonic transducer in which a screen is placed over the opening of the outer case and sandwiched between a folded piece provided on the outer case and a second ear protector.