JPH0333363U - - Google Patents
Info
- Publication number
- JPH0333363U JPH0333363U JP9421489U JP9421489U JPH0333363U JP H0333363 U JPH0333363 U JP H0333363U JP 9421489 U JP9421489 U JP 9421489U JP 9421489 U JP9421489 U JP 9421489U JP H0333363 U JPH0333363 U JP H0333363U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic flux
- leakage magnetic
- detection sensor
- flux detection
- search coils
- 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 11
- 230000004907 flux Effects 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000000523 sample Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 230000005284 excitation Effects 0.000 description 2
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Description
図面は、本考案の実施例で、第１図は、第１例
の漏洩磁束検出センサを使用した鋼管用漏洩磁気
探傷装置の正面図、第２図は、同例の構成説明図
、第３図は、第２例の構成説明図、第４図は、第
３例の構成説明図、第５図は、各実施例における
回路図、第６図は、他の回路例を示す回路図であ
る。
１……鋼管、２……回転フレーム、３……漏洩
磁束検出センサ、４……励磁ヨーク５……励磁コ
イル、６……アンプ、３１……探傷プローブ、３
２……サーチコイル。
The drawings show an embodiment of the present invention, and FIG. 1 is a front view of a leakage magnetic flaw detection device for steel pipes using the leakage magnetic flux detection sensor of the first example, FIG. 2 is a configuration explanatory diagram of the same example, and FIG. FIG. 4 is a configuration explanatory diagram of the second example, FIG. 4 is a configuration explanatory diagram of the third example, FIG. 5 is a circuit diagram of each embodiment, and FIG. 6 is a circuit diagram showing another circuit example. be. DESCRIPTION OF SYMBOLS 1... Steel pipe, 2... Rotating frame, 3... Leakage magnetic flux detection sensor, 4... Excitation yoke 5... Excitation coil, 6... Amplifier, 31... Flaw detection probe, 3
2...Search coil.
Claims (1)
数のサーチコイルを配列して成る漏洩磁束検出セ
ンサにおいて、それらのサーチコイルを適宣数あ
て直列に接続したことを特徴とする漏洩磁束検出
センサ。 (2) 位置的に離間したサーチコイル同志を直列
に接続する請求項第１項記載の漏洩磁束検出セン
サ。 (3) 探傷プローブに、鋼材表面へ対峙させる複
数のサーチコイルを配列して成る漏洩磁束検出セ
ンサにおいて、それらのサーチコイルを千鳥状に
配列するとともに、異列相互の隣接コイル同志を
直列接続したことを特徴とする漏洩磁束検出セン
サ。[Scope of Claim for Utility Model Registration] (1) In a leakage magnetic flux detection sensor consisting of a flaw detection probe and a plurality of search coils arranged to face the surface of a steel material, an appropriate number of search coils are connected in series. Features leakage magnetic flux detection sensor. (2) The leakage magnetic flux detection sensor according to claim 1, wherein the search coils are connected in series. (3) In a leakage magnetic flux detection sensor consisting of a flaw detection probe with multiple search coils arranged facing the steel surface, the search coils are arranged in a staggered manner, and adjacent coils in different rows are connected in series. A leakage magnetic flux detection sensor characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9421489U JPH0333363U (en) | 1989-08-10 | 1989-08-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9421489U JPH0333363U (en) | 1989-08-10 | 1989-08-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0333363U true JPH0333363U (en) | 1991-04-02 |
Family
ID=31643554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9421489U Pending JPH0333363U (en) | 1989-08-10 | 1989-08-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0333363U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996000386A1 (en) * | 1994-06-23 | 1996-01-04 | Sumitomo Metal Industries Limited | Method and apparatus for leakage flux flaw detection, and leakage flux flaw detector |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5011087A (en) * | 1973-05-10 | 1975-02-04 | ||
| JPS52100282A (en) * | 1976-02-19 | 1977-08-23 | Toyo Kohan Co Ltd | Detector for internal defects of thin steel sheet |
-
1989
- 1989-08-10 JP JP9421489U patent/JPH0333363U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5011087A (en) * | 1973-05-10 | 1975-02-04 | ||
| JPS52100282A (en) * | 1976-02-19 | 1977-08-23 | Toyo Kohan Co Ltd | Detector for internal defects of thin steel sheet |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996000386A1 (en) * | 1994-06-23 | 1996-01-04 | Sumitomo Metal Industries Limited | Method and apparatus for leakage flux flaw detection, and leakage flux flaw detector |
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