JPS6421358U - - Google Patents
Info
- Publication number
- JPS6421358U JPS6421358U JP11589187U JP11589187U JPS6421358U JP S6421358 U JPS6421358 U JP S6421358U JP 11589187 U JP11589187 U JP 11589187U JP 11589187 U JP11589187 U JP 11589187U JP S6421358 U JPS6421358 U JP S6421358U
- Authority
- JP
- Japan
- Prior art keywords
- leakage magnetic
- main body
- detection device
- flaw detection
- electromagnet
- 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
- 230000005291 magnetic effect Effects 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 8
- 230000007547 defect Effects 0.000 claims description 4
- 230000004907 flux Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000000523 sample Substances 0.000 claims description 2
- 239000003302 ferromagnetic material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Description
第１図は本考案の一実施例に係る漏洩磁気探傷
装置を示す正面図、第２図は第１図の漏洩磁気探
傷装置を模式的に示す平面図、第３図は３極型電
磁石を示す斜視図、第４図は３極型電磁石の結線
図、第５図は３相交流の波形を示す線図、第６図
は３極型電磁石の回転磁界を示すベクトル図、第
７図はサーチコイルを示す斜視図、第８図は欠陥
検出状態を示す模式図、第９図は磁束の流れと欠
陥との関係を示す線図である。
１０……漏洩磁気探傷装置、１１……被検材、
１１Ａ……欠陥部、１２……ローラー、１３……
本体、１４……３極型電磁石、１５Ａ〜１５Ｃ…
…電磁石、１６……漏洩磁束検出プローブ。
Fig. 1 is a front view showing a leakage magnetic flaw detection device according to an embodiment of the present invention, Fig. 2 is a plan view schematically showing the leakage magnetic flaw detection device of Fig. 1, and Fig. 3 is a three-pole electromagnet. 4 is a wiring diagram of a three-pole electromagnet, FIG. 5 is a line diagram showing three-phase AC waveforms, FIG. 6 is a vector diagram showing the rotating magnetic field of a three-pole electromagnet, and FIG. 7 is a diagram showing the rotating magnetic field of a three-pole electromagnet. FIG. 8 is a perspective view showing the search coil, FIG. 8 is a schematic diagram showing a defect detection state, and FIG. 9 is a diagram showing the relationship between the flow of magnetic flux and defects. 10...Leakage magnetic flaw detection device, 11...Test material,
11A...defect part, 12...roller, 13...
Main body, 14...3-pole electromagnet, 15A to 15C...
...Electromagnet, 16...Leakage magnetic flux detection probe.
Claims (1)
材表面の欠陥部に生ずる漏洩磁束を検出する携帯
型漏洩磁気探傷装置であつて、被検材表面に接し
て方向自在に転動するローラーを備える本体と、
本体に設けられて高周波磁化交流を供給される多
極型電磁石と、本体における各電磁石間に設けら
れる漏洩磁束検出プローブとを有してなる携帯型
漏洩磁気探傷装置。 A portable leakage magnetic flaw detection device that magnetizes the surface of a material to be tested made of ferromagnetic material and detects leakage magnetic flux generated at defects on the surface of the material to be tested. a main body equipped with a roller that
A portable leakage magnetic flaw detection device comprising a multipolar electromagnet provided in a main body and supplied with high-frequency magnetizing alternating current, and a leakage magnetic flux detection probe provided between each electromagnet in the main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11589187U JPS6421358U (en) | 1987-07-30 | 1987-07-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11589187U JPS6421358U (en) | 1987-07-30 | 1987-07-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6421358U true JPS6421358U (en) | 1989-02-02 |
Family
ID=31357946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11589187U Pending JPS6421358U (en) | 1987-07-30 | 1987-07-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6421358U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10333672A (en) * | 1997-06-03 | 1998-12-18 | Kawai Musical Instr Mfg Co Ltd | Electronic keyboard percussion instrument |
-
1987
- 1987-07-30 JP JP11589187U patent/JPS6421358U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10333672A (en) * | 1997-06-03 | 1998-12-18 | Kawai Musical Instr Mfg Co Ltd | Electronic keyboard percussion instrument |
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