JPS5817551U

JPS5817551U - Ultrasonic flaw detection equipment

Info

Publication number: JPS5817551U
Application number: JP11254381U
Authority: JP
Inventors: 「はん」木　和弘; 佐藤　春治; 山本　征二
Original assignee: 三菱電機株式会社
Priority date: 1981-07-29
Filing date: 1981-07-29
Publication date: 1983-02-03

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図は従来の超音波探傷装置の構成図、第２　　。図はこの考案の一実施例を示す超音波探傷装置の゛　ブ
ロック図、第３図はこの考案による残響エコー検出器９
の詳細図、第４図は表示器３の表示例を示す図である。図中１は同期部、２は掃引部、４は送信機、５は受信機
、６は探触子、７はゲート発生器、８はサンプリング回
路、９は残響エコー検出器、１０はコンパレータ、１１
はレベル設定器、１２はカウンタ、１３は自動ホールド
回路、１４はＤ／Ａ変換器である。尚、図中同一または
相当部分には同一符号を付して示しである。Fig. 1 is a block diagram of a conventional ultrasonic flaw detection device; The figure is a block diagram of an ultrasonic flaw detection device showing one embodiment of this invention, and Figure 3 is a reverberant echo detector 9 according to this invention.
FIG. 4 is a diagram showing an example of the display on the display 3. In the figure, 1 is a synchronization section, 2 is a sweep section, 4 is a transmitter, 5 is a receiver, 6 is a probe, 7 is a gate generator, 8 is a sampling circuit, 9 is a reverberation echo detector, 10 is a comparator, 11
1 is a level setter, 12 is a counter, 13 is an automatic hold circuit, and 14 is a D/A converter. It should be noted that the same or corresponding parts in the figures are indicated by the same reference numerals.

Claims

[Scope of utility model registration request]

A synchronizer that generates a predetermined repetition frequency; a transmitter that generates a transmission signal based on the output signal from the synchronizer; and a transmitter that converts the transmission signal generated from the transmitter into an ultrasonic signal and transmits the signal to the specimen. A probe that injects ultrasonic waves into the sample and converts the reflected waves from the sample into an electrical signal, a receiver that amplifies the electrical signal from the probe, and an output signal from the synchronizer. a gate generator that generates a gate signal based on the gate signal; a sampling circuit that samples the output of the receiver using the gate signal; and a reverberant echo detector that detects a reverberant echo using the output of the sampling circuit; An ultrasonic flaw detection apparatus characterized in that the output of the reverberant echo detector is applied to the synchronizer so that the synchronizer generates a repetition frequency corresponding to the output of the reverberant echo detector.