JPS61203357U - - Google Patents
Info
- Publication number
- JPS61203357U JPS61203357U JP8867785U JP8867785U JPS61203357U JP S61203357 U JPS61203357 U JP S61203357U JP 8867785 U JP8867785 U JP 8867785U JP 8867785 U JP8867785 U JP 8867785U JP S61203357 U JPS61203357 U JP S61203357U
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- eddy current
- flaw detector
- current flaw
- detection 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
- 238000001514 detection method Methods 0.000 claims description 4
- 230000004907 flux Effects 0.000 claims description 3
- 230000007547 defect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Description
第1図は本考案渦電流探傷子の一実施例の断面
図、第2図は同上における磁束の説明図、第3図
は従来の渦電流探傷子の断面図、第4図は同上に
おける磁束の説明図である。
2:永久磁石、3:永久磁石、4:継鉄、5:
検出コイル、6:リード線、9:案内ケーブル、
10:磁気シールド板。
Fig. 1 is a cross-sectional view of one embodiment of the eddy current flaw detector of the present invention, Fig. 2 is an explanatory diagram of magnetic flux in the same as above, Fig. 3 is a cross-sectional view of a conventional eddy current flaw detector, and Fig. 4 is a magnetic flux in the same as above. FIG. 2: Permanent magnet, 3: Permanent magnet, 4: Yoke, 5:
Detection coil, 6: Lead wire, 9: Guide cable,
10: Magnetic shield plate.
Claims (1)
局部的に磁化した欠陥検出性を向上させる渦電流
探傷子において、検出コイルと永久磁石の間に永
久磁石による磁束をバイパスさせる磁気シールド
板を設けたことを特徴とする渦電流探傷子。 In an eddy current flaw detector that improves defect detection by locally magnetizing the test object using a permanent magnet adjacent to the detection coil, a magnetic shield plate is provided between the detection coil and the permanent magnet to bypass the magnetic flux caused by the permanent magnet. An eddy current flaw detector featuring:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8867785U JPS61203357U (en) | 1985-06-12 | 1985-06-12 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8867785U JPS61203357U (en) | 1985-06-12 | 1985-06-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS61203357U true JPS61203357U (en) | 1986-12-20 |
Family
ID=30642041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8867785U Pending JPS61203357U (en) | 1985-06-12 | 1985-06-12 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61203357U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010266311A (en) * | 2009-05-14 | 2010-11-25 | Sumitomo Chemical Co Ltd | Jig and method for inspecting flaw of magnetic pipe |
-
1985
- 1985-06-12 JP JP8867785U patent/JPS61203357U/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010266311A (en) * | 2009-05-14 | 2010-11-25 | Sumitomo Chemical Co Ltd | Jig and method for inspecting flaw of magnetic pipe |
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