JPS61132746U - - Google Patents
Info
- Publication number
- JPS61132746U JPS61132746U JP1727485U JP1727485U JPS61132746U JP S61132746 U JPS61132746 U JP S61132746U JP 1727485 U JP1727485 U JP 1727485U JP 1727485 U JP1727485 U JP 1727485U JP S61132746 U JPS61132746 U JP S61132746U
- Authority
- JP
- Japan
- Prior art keywords
- pole
- permanent magnet
- core
- eddy current
- flaw detection
- 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 7
- 238000001514 detection method Methods 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 230000005415 magnetization Effects 0.000 claims 1
- 230000002093 peripheral effect 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４図は従来の内
挿用プローブの使用状態を示す側面図、第５図は
第４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……鉄心、２……絶縁材、３……検査コイル
、４ａ，４ｂ……永久磁石、５……被検管体、７
……渦流探傷用プローブ。
Figure 1 is a side view showing how the eddy current flaw detection probe is used, Figure 2 is a front view taken from the section A-A in Figure 1, and Figure 3 shows the magnetic flux distribution of the eddy current flaw detection probe in Figure 1. 4 is a side view showing a conventional interpolation probe in use, and FIG. 5 is a sectional view showing the magnetic flux distribution of the interpolation probe of FIG. 4. DESCRIPTION OF SYMBOLS 1... Iron core, 2... Insulating material, 3... Inspection coil, 4a, 4b... Permanent magnet, 5... Test tube body, 7
...Eddy current flaw detection probe.
Claims (1)
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
心の両端部を曲面円錐状に形成し、この鉄心の両
端部形状に合せて嵌合する内周面とし均一な厚さ
の中空曲面円錐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。 A test coil is wound around the center of a cylindrical core, and cylindrical permanent magnets are fitted to both ends, and the magnetization direction of the permanent magnet is perpendicular to the axis of the core.
In an eddy current flaw detection probe in which the permanent magnet at one end is magnetized with the outer periphery being N pole and the inner periphery being S pole, and the permanent magnet at the other end being magnetized with the outer periphery being S pole and the inner periphery being N pole, both ends of the iron core are provided. An eddy current flaw detection probe characterized in that the core is formed into a curved conical shape, and a permanent magnet having a uniform thickness and a hollow curved conical shape is fitted as an inner peripheral surface that fits in accordance with the shape of both ends of the iron core. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1727485U JPH0338695Y2 (en) | 1985-02-09 | 1985-02-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1727485U JPH0338695Y2 (en) | 1985-02-09 | 1985-02-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61132746U true JPS61132746U (en) | 1986-08-19 |
| JPH0338695Y2 JPH0338695Y2 (en) | 1991-08-15 |
Family
ID=30504826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1727485U Expired JPH0338695Y2 (en) | 1985-02-09 | 1985-02-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0338695Y2 (en) |
-
1985
- 1985-02-09 JP JP1727485U patent/JPH0338695Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0338695Y2 (en) | 1991-08-15 |
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