JPS60106162U - Eddy current flaw detection equipment - Google Patents
Eddy current flaw detection equipmentInfo
- Publication number
- JPS60106162U JPS60106162U JP19977183U JP19977183U JPS60106162U JP S60106162 U JPS60106162 U JP S60106162U JP 19977183 U JP19977183 U JP 19977183U JP 19977183 U JP19977183 U JP 19977183U JP S60106162 U JPS60106162 U JP S60106162U
- Authority
- JP
- Japan
- Prior art keywords
- eddy current
- flaw detection
- current flaw
- detection equipment
- coil
- 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
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
第１図は差動型コイルによる表面疵の測定原理の説明図
、第２図は本考の一つの実施例に係る渦流探傷装置の斜
視図、第３図はそのプロー／の斜親図、第４図は表面疵
長さとＳ／Ｎ比との関係を示すグラフ、第５図はプロー
ブコイル検出有効中とＳ／Ｎ比の関係を示すグラフ、第
６図はプローブコイル配列の一例を示す斜視図、第７図
は本考案に係る装置が組込まれたローラテーブルめ一例
の正面図である。
符号１・・・・・・プローブ、２・・・・・・プローブ
コイルζ１０・・・・・・角ビレット、１１・・・・・
・テーブルローラ、１２・・・・・・底板、１３・・・
・・・プローブ、１４’ａ、１４ｂ・・・・・・プロー
ブコイル、１５・・・・・・表面疵、１６・・・・・・
交流電源、１７・・・・・・可変抵抗、１８・・・・・
・テーブルローラ、１９・・・・・・渦流探傷装置、２
０・・・・・・エアーシリンダ。Fig. 1 is an explanatory diagram of the principle of measuring surface flaws using a differential coil, Fig. 2 is a perspective view of an eddy current flaw detection device according to one embodiment of this study, and Fig. 3 is a perspective view of its probe. Figure 4 is a graph showing the relationship between surface flaw length and S/N ratio, Figure 5 is a graph showing the relationship between probe coil detection being enabled and S/N ratio, and Figure 6 is an example of probe coil arrangement. The perspective view and FIG. 7 are front views of an example of a roller table incorporating the device according to the present invention. Code 1...Probe, 2...Probe coil ζ10...Square billet, 11...
・Table roller, 12...Bottom plate, 13...
...Probe, 14'a, 14b...Probe coil, 15...Surface flaw, 16...
AC power supply, 17... Variable resistance, 18...
・Table roller, 19... Eddy current flaw detection device, 2
0...Air cylinder.
Claims (1)
５〜１／加倍のコイル間隔において巻回された２つのコ
イルを具える差動型の角型プローブをビレット等の長手
方向に直交する方向に並べ、しかも、ビレット等の長手
方向において隣接プローブ間で各コイルがコイル巾の１
／２〜１／３倍程度ラップされるよう、配置されて成る
ことを特徴とする渦流探傷装置。11 of the length of the flaw where the coil spacing is in the longitudinal direction of the billet
Differential square probes each having two coils wound at a coil spacing of 5 to 1/multiply are arranged in a direction perpendicular to the longitudinal direction of the billet, etc. and each coil is 1 of the coil width
An eddy current flaw detection device characterized in that the eddy current flaw detection device is arranged so as to be lapped by a factor of approximately 1/2 to 1/3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19977183U JPS60106162U (en) | 1983-12-23 | 1983-12-23 | Eddy current flaw detection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19977183U JPS60106162U (en) | 1983-12-23 | 1983-12-23 | Eddy current flaw detection equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60106162U true JPS60106162U (en) | 1985-07-19 |
Family
ID=30760001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19977183U Pending JPS60106162U (en) | 1983-12-23 | 1983-12-23 | Eddy current flaw detection equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60106162U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007026506A1 (en) * | 2005-08-31 | 2007-03-08 | Nidec Sankyo Corporation | Magnetic sensor device, method for manufacturing magnetic sensor device and sheet discriminating device |
| JP2007064839A (en) * | 2005-08-31 | 2007-03-15 | Nidec Sankyo Corp | Magnetic sensor device, method of manufacturing magnetic sensor device, and paper sheet discrimination device |
| JP2007064840A (en) * | 2005-08-31 | 2007-03-15 | Nidec Sankyo Corp | Magnetic sensor device and paper sheet discrimination device |
| JP2011191326A (en) * | 2011-07-08 | 2011-09-29 | Jfe Steel Corp | Method for detecting surface defect on plate using vortex sensor |
-
1983
- 1983-12-23 JP JP19977183U patent/JPS60106162U/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007026506A1 (en) * | 2005-08-31 | 2007-03-08 | Nidec Sankyo Corporation | Magnetic sensor device, method for manufacturing magnetic sensor device and sheet discriminating device |
| JP2007064839A (en) * | 2005-08-31 | 2007-03-15 | Nidec Sankyo Corp | Magnetic sensor device, method of manufacturing magnetic sensor device, and paper sheet discrimination device |
| JP2007064840A (en) * | 2005-08-31 | 2007-03-15 | Nidec Sankyo Corp | Magnetic sensor device and paper sheet discrimination device |
| JP4758182B2 (en) * | 2005-08-31 | 2011-08-24 | 日本電産サンキョー株式会社 | Magnetic sensor device, method of manufacturing magnetic sensor device, and paper sheet identification device |
| JP2011191326A (en) * | 2011-07-08 | 2011-09-29 | Jfe Steel Corp | Method for detecting surface defect on plate using vortex sensor |
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