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
Application number
JP8867785U
Other languages
Japanese (ja)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP8867785U priority Critical patent/JPS61203357U/ja
Publication of JPS61203357U publication Critical patent/JPS61203357U/ja
Pending legal-status Critical Current

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  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

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)

【実用新案登録請求の範囲】[Scope of utility model registration request] 検出コイルに隣接した永久磁石により被検体を
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:
JP8867785U 1985-06-12 1985-06-12 Pending JPS61203357U (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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