JPS62108865U - - Google Patents
Info
- Publication number
- JPS62108865U JPS62108865U JP19929885U JP19929885U JPS62108865U JP S62108865 U JPS62108865 U JP S62108865U JP 19929885 U JP19929885 U JP 19929885U JP 19929885 U JP19929885 U JP 19929885U JP S62108865 U JPS62108865 U JP S62108865U
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic
- receiving
- waves
- electromagnetic
- transmitting
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 4
- 230000007547 defect Effects 0.000 claims 2
- 230000005284 excitation Effects 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
- BLRBOMBBUUGKFU-SREVYHEPSA-N (z)-4-[[4-(4-chlorophenyl)-5-(2-methoxy-2-oxoethyl)-1,3-thiazol-2-yl]amino]-4-oxobut-2-enoic acid Chemical compound S1C(NC(=O)\C=C/C(O)=O)=NC(C=2C=CC(Cl)=CC=2)=C1CC(=O)OC BLRBOMBBUUGKFU-SREVYHEPSA-N 0.000 description 3
Description
第１図は本考案の実施例を示すブロツク図、第
２図は各ブロツクの信号を示す波形図、第３図は
センサ間隔を変化させるＫ走査超音波探傷法を示
す説明図、第４図はセンサ間隔を固定したＫ走査
超音波探傷法を示す説明図、第５図は縦波及び横
波の斜反射時の反射率特性を示す特性図、第６図
はＳＨ波の反射率特性を示す特性図、第７図はＳ
Ｈ波を発生・検出するＥＭＡＴを示す構成図、第
８図はＳＨ波発生の原理を示す説明図である。
図面中、２１はパルス発生器、２２はノコギリ
波発生器、２３はホールド回路、２４は発振器、
２５は送信用ＥＭＡＴ、２６は受信用ＥＭＡＴ、
２７は増幅器、２８は中心周波数可変フイルター
、２９は表示器である。
Fig. 1 is a block diagram showing an embodiment of the present invention, Fig. 2 is a waveform chart showing the signals of each block, Fig. 3 is an explanatory diagram showing the K-scan ultrasonic flaw detection method in which the sensor interval is changed, Fig. 4 is an explanatory diagram showing the K-scanning ultrasonic flaw detection method with a fixed sensor interval, Figure 5 is a characteristic diagram showing the reflectance characteristics during oblique reflection of longitudinal waves and transverse waves, and Figure 6 is a characteristic diagram showing the reflectance characteristics of SH waves. Characteristic diagram, Figure 7 is S
FIG. 8 is a block diagram showing the EMAT that generates and detects H waves, and is an explanatory diagram showing the principle of SH wave generation. In the drawing, 21 is a pulse generator, 22 is a sawtooth wave generator, 23 is a hold circuit, 24 is an oscillator,
25 is a transmitting EMAT, 26 is a receiving EMAT,
27 is an amplifier, 28 is a variable center frequency filter, and 29 is a display.
Claims (1)
斜角入射し、被検体内の欠陥で反射した超音波を
受信用超音波センサで受信することにより欠陥を
検出するＫ走査超音波探傷装置において、 ＳＨ波を送受する電磁超音波トランスデユーサ
により送信用及び受信用の超音波センサを構成す
るとともに、両方の電磁超音波トランスデユーサ
の離間距離を固定とし、更に送信側の電磁超音波
トランスデユーサに流す高周波励磁電流の周波数
を任意に変えることのできる制御回路を具備する
ことを特徴とするＫ走査電磁超音波探傷装置。[Claim for Utility Model Registration] Defects are detected by obliquely injecting ultrasonic waves from a transmitting ultrasonic sensor into a subject and receiving the ultrasonic waves reflected by defects within the subject by a receiving ultrasonic sensor. In the K-scanning ultrasonic flaw detection device, transmitting and receiving ultrasonic sensors are configured by electromagnetic ultrasonic transducers that transmit and receive SH waves, and the separation distance between both electromagnetic ultrasonic transducers is fixed. A K-scan electromagnetic ultrasonic flaw detection apparatus further comprising a control circuit that can arbitrarily change the frequency of the high-frequency excitation current flowing through the electromagnetic ultrasonic transducer on the transmitting side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19929885U JPS62108865U (en) | 1985-12-26 | 1985-12-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19929885U JPS62108865U (en) | 1985-12-26 | 1985-12-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62108865U true JPS62108865U (en) | 1987-07-11 |
Family
ID=31160791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19929885U Pending JPS62108865U (en) | 1985-12-26 | 1985-12-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62108865U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007058391A1 (en) * | 2005-11-21 | 2007-05-24 | Jfe Steel Corporation | Pipe ultrasonic flaw detecting apparatus and ultrasonic flaw detecting method |
-
1985
- 1985-12-26 JP JP19929885U patent/JPS62108865U/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007058391A1 (en) * | 2005-11-21 | 2007-05-24 | Jfe Steel Corporation | Pipe ultrasonic flaw detecting apparatus and ultrasonic flaw detecting method |
| JP2007163470A (en) * | 2005-11-21 | 2007-06-28 | Jfe Steel Kk | Apparatus and method for ultrasonically detecting flaw of tube |
| US7779694B2 (en) | 2005-11-21 | 2010-08-24 | Jfe Steel Corporation | Ultrasonic testing system and ultrasonic testing technique for pipe member |
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