JPS60154857U

JPS60154857U - ultrasonic detector

Info

Publication number: JPS60154857U
Application number: JP4056684U
Authority: JP
Inventors: 宏武田
Original assignee: エヌオーケー株式会社
Priority date: 1984-03-23
Filing date: 1984-03-23
Publication date: 1985-10-15

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図は従来の超音波検出器を示す縦断正面図、第２
図ａ、ｂ：ｃ、ｄは超音波検出器のそれ１ぞれ異なった
取付方法を示す説明図、第３図は圧電セラミック振動子
と試験材料との接触状態を示す説明図、第４図は本考案
に係る超音波検出器の　　　　゛一実施例を示す縦断正
面図、第５図乃至第８図は同超音波検出器の製造工程の
一実施例を示すそれぞれａ平面図及びｂ縦断正面図、第
９図及び第１０図は同超音波検出器の使用状態をそれぞ
れ示す説明図である。符号の説明、１１・・・超音波検出器、１２・・・フィ
ルム状圧電振動子（ポリフッ化ビニリデンフィルム）、
１３・・・第１薄膜電極、１３ａ・・・接続部、１４・
・・第２薄膜電極、１５・・・絶縁膜、１６・・・鋼材
、１７・・・合成樹脂材、１８・・・増幅器、１９・・
・信号処理器、Ａ・・・部分、Ｆ・・・荷重、Ｌ・・・
長さ、Ｔ・・・厚さ、Ｗ・・・幅。第５図第７図- Figure 1 is a longitudinal sectional front view showing a conventional ultrasonic detector;
Figures a, b: c, d are explanatory diagrams showing different mounting methods of the ultrasonic detector, Fig. 3 is an explanatory diagram showing the contact state between the piezoelectric ceramic vibrator and the test material, and Fig. 4 5 is a longitudinal sectional front view showing one embodiment of the ultrasonic detector according to the present invention, and FIGS. FIGS. 9 and 10 are explanatory diagrams each showing the state of use of the ultrasonic detector. Explanation of symbols, 11... Ultrasonic detector, 12... Film-shaped piezoelectric vibrator (polyvinylidene fluoride film),
13... First thin film electrode, 13a... Connection portion, 14...
...Second thin film electrode, 15...Insulating film, 16...Steel material, 17...Synthetic resin material, 18...Amplifier, 19...
・Signal processor, A...part, F...load, L...
Length, T...thickness, W...width. Figure 5 Figure 7

Claims

[Scope of utility model registration request]

(1) Place first and second thin film electrodes on the front and back screens of a film-like piezoelectric vibrator made of synthetic resin so that the end faces in the thickness direction of the first and second thin film electrodes are in close contact with each other,
An ultrasonic detector characterized by: (2) The ultrasonic detector according to claim 1, wherein the film-like piezoelectric vibrator is made of polyvinylidene fluoride film.