JPS61132747U - - Google Patents
Info
- Publication number
- JPS61132747U JPS61132747U JP1727585U JP1727585U JPS61132747U JP S61132747 U JPS61132747 U JP S61132747U JP 1727585 U JP1727585 U JP 1727585U JP 1727585 U JP1727585 U JP 1727585U JP S61132747 U JPS61132747 U JP S61132747U
- Authority
- JP
- Japan
- Prior art keywords
- pole
- cylindrical
- eddy current
- flaw detection
- detection probe
- 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.)
- Granted
Links
- 239000000523 sample Substances 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 230000005415 magnetization Effects 0.000 claims 1
- 230000004907 flux Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Description
第１図は本考案の実施例の渦流探傷用プローブ
の使用状態を示す側面図、第２図は第１図のＡ―
Ａ部断面よりみた正面図、第３図は他の実施例の
渦流探傷用プローブの使用状態を示す側面図、第
４図は第３図のＢ―Ｂ部断面よりみた正面図、第
５図は第１図の渦流探傷用プローブの磁束分布を
あらわした断面図、第６図は従来の内挿用プロー
ブの使用状態を示す側面図、第７図は第６図の内
挿用プローブの磁束分布をあらわした断面図であ
る。
１，１１……渦流探傷用プローブ、２，１２，
１２ａ，１２ｂ……鉄心、３……絶縁材、４……
検査コイル、５ａ，５ｂ，１５ａ，１５ｂ……永
久磁石、６……被検管体。
FIG. 1 is a side view showing the state of use of the eddy current flaw detection probe according to the embodiment of the present invention, and FIG.
3 is a side view showing the state in which the eddy current flaw detection probe of another embodiment is used; FIG. 4 is a front view seen from the BB section in FIG. 3; FIG. is a cross-sectional view showing the magnetic flux distribution of the eddy current flaw detection probe shown in Fig. 1, Fig. 6 is a side view showing how the conventional interpolation probe is used, and Fig. 7 is the magnetic flux of the interpolation probe shown in Fig. 6. FIG. 3 is a cross-sectional view showing the distribution. 1, 11... eddy current flaw detection probe, 2, 12,
12a, 12b... Iron core, 3... Insulating material, 4...
Inspection coil, 5a, 5b, 15a, 15b...Permanent magnet, 6...Test tube body.
Claims (1)
両端部に円筒状の永久磁石を嵌着し、前記永久磁
石はその磁化方向が鉄心の軸心線と直交する方向
で、かつ一方端の永久磁石は外周がＮ極、内周が
Ｓ極、他方端の永久磁石は外周がＳ極、内周がＮ
極の着磁とした渦流探傷用プローブにおいて、前
記鉄心の両端部を載頭円錐状に形成し、この鉄心
の両端部形状に合せて嵌合する内周面とし外周面
を円筒状とした永久磁石を嵌着したことを特徴と
する渦流探傷用プローブ。 (2) 実用新案登録請求の範囲第１項に記載の載
頭円錐状が段部を設けて細くした円柱状とされた
ことを特徴とする渦流探傷用プローブ。[Scope of claim for utility model registration] (1) A test coil is wound around the center of a cylindrical core,
Cylindrical permanent magnets are fitted to both ends, the magnetization direction of the permanent magnets is perpendicular to the axis of the iron core, and the permanent magnet at one end has an outer circumference of N pole and an inner circumference of S pole, The permanent magnet at the other end has an S pole on the outer circumference and an N pole on the inner circumference.
In an eddy current flaw detection probe with magnetized poles, both ends of the iron core are formed into a truncated cone shape, and the inner circumferential surface and outer circumferential surface are cylindrical to fit in accordance with the shape of both ends of the iron core. An eddy current flaw detection probe characterized by a magnet fitted into it. (2) An eddy current flaw detection probe characterized in that the truncated conical shape according to claim 1 of the utility model registration is made into a cylindrical shape that is narrowed by providing a stepped portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1727585U JPH0338696Y2 (en) | 1985-02-09 | 1985-02-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1727585U JPH0338696Y2 (en) | 1985-02-09 | 1985-02-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61132747U true JPS61132747U (en) | 1986-08-19 |
| JPH0338696Y2 JPH0338696Y2 (en) | 1991-08-15 |
Family
ID=30504828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1727585U Expired JPH0338696Y2 (en) | 1985-02-09 | 1985-02-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0338696Y2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63124957A (en) * | 1986-11-14 | 1988-05-28 | Kawasaki Heavy Ind Ltd | Method and probe for eddy current flaw detection |
| JP2010237186A (en) * | 2009-03-11 | 2010-10-21 | Sumitomo Chemical Co Ltd | Eddy current flaw detection probe |
| JP2010261836A (en) * | 2009-05-08 | 2010-11-18 | Sumitomo Chemical Co Ltd | Method for inspection of magnetic material pipe |
| WO2019064685A1 (en) * | 2017-09-27 | 2019-04-04 | 日立造船株式会社 | Eddy current detection device |
-
1985
- 1985-02-09 JP JP1727585U patent/JPH0338696Y2/ja not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63124957A (en) * | 1986-11-14 | 1988-05-28 | Kawasaki Heavy Ind Ltd | Method and probe for eddy current flaw detection |
| JP2010237186A (en) * | 2009-03-11 | 2010-10-21 | Sumitomo Chemical Co Ltd | Eddy current flaw detection probe |
| JP2010261836A (en) * | 2009-05-08 | 2010-11-18 | Sumitomo Chemical Co Ltd | Method for inspection of magnetic material pipe |
| WO2019064685A1 (en) * | 2017-09-27 | 2019-04-04 | 日立造船株式会社 | Eddy current detection device |
| JP2019060725A (en) * | 2017-09-27 | 2019-04-18 | 日立造船株式会社 | Eddy current flaw detector |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0338696Y2 (en) | 1991-08-15 |
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