JPS61125766U - - Google Patents
Info
- Publication number
- JPS61125766U JPS61125766U JP799185U JP799185U JPS61125766U JP S61125766 U JPS61125766 U JP S61125766U JP 799185 U JP799185 U JP 799185U JP 799185 U JP799185 U JP 799185U JP S61125766 U JPS61125766 U JP S61125766U
- Authority
- JP
- Japan
- Prior art keywords
- steel pipe
- probe
- coil
- detection coil
- eddy current
- 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
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 239000000523 sample Substances 0.000 claims description 9
- 230000007547 defect Effects 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 claims 2
- 230000002950 deficient Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Description
第１図は本考案の内挿プローブを示す部分断面
図。第２図〜第４図は検出コイルの形体を模式的
に示す第１図Ａ―Ａ線におけると同様な断面図。
第５図〜第７図は検出コイルの実際的な例をそれ
ぞれ示す図。
１…鋼管、２…磁気飽和部材、３…検出コイル
。
FIG. 1 is a partial sectional view showing the interpolation probe of the present invention. 2 to 4 are sectional views similar to those taken along the line AA in FIG. 1, schematically showing the configuration of the detection coil.
FIGS. 5 to 7 are diagrams showing practical examples of detection coils, respectively. 1... Steel pipe, 2... Magnetic saturation member, 3... Detection coil.
補正 昭６０．３．１１
考案の名称を次のように補正する。
考案の名称 渦流探傷器用内挿プローブ
実用新案登録請求の範囲、図面の簡単な説明を
次のように補正する。Amendment March 11, 1980 The name of the invention is amended as follows. Title of the invention Interpolation probe for eddy current flaw detector The scope of the utility model registration claim and the brief description of the drawings are amended as follows.
【実用新案登録請求の範囲】(1) 管体内を移送させて管体のキズやワレ等の
欠陥を渦流探傷検査するための内挿プローブであ
つて、管体内を移送されて管体の欠陥位置での電
圧、電流変化を検出するコイルと、該検出コイル
を所定位置関係で管体内へ移送させれための支持
移送部材とを備え、前記検出コイルはコイル中心
方向が管体の円周方向となるよう構成された１つ
または複数の変形空芯形コイルであることを特徴
とした渦流探傷器用内挿プローブ。 (2) 前記管体が鋼管であり、前記検出コイルは
鋼管の探傷検査部分を磁気飽和状態に直流磁化す
る磁気飽和部材により支持されていることを特徴
とした実用新案登録請求の範囲第１項記載の内挿
プローブ。 [Scope of Claim for Utility Model Registration] (1) An interpolation probe for eddy current inspection of defects such as scratches and cracks in the tube by being transferred inside the tube, It includes a coil for detecting changes in voltage and current at a position, and a support and transfer member for transferring the detection coil into the tube body in a predetermined positional relationship, and the detection coil has a coil center direction in the circumferential direction of the tube body. An interpolation probe for an eddy current flaw detector, characterized in that it is one or more modified air-core coils configured to have the following characteristics. (2) Claim 1 of the utility model registration claim, characterized in that the tube body is a steel pipe, and the detection coil is supported by a magnetic saturation member that direct current magnetizes the flaw detection inspection portion of the steel pipe to a magnetic saturation state. Interpolation probe as described.
【図面の簡単な説明】
第１図は本考案の内挿プローブを示す部分断面
図。第２図〜第４図は検出コイルの形体を模式的
に示す第１図Ａ―Ａ線におけると同様な断面図。
第５図〜第７図は検出コイルの実際的な例をそれ
ぞれ示す図。
１…鋼管、２…磁気飽和部材、３…険出コイル
。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial sectional view showing the interpolation probe of the present invention. 2 to 4 are sectional views similar to those taken along the line AA in FIG. 1, schematically showing the configuration of the detection coil.
FIGS. 5 to 7 are diagrams showing practical examples of detection coils, respectively. 1... Steel pipe, 2... Magnetic saturation member, 3... Protruding coil.
Claims (1)
流探傷検査により検出するためのプローブであつ
て、鋼管の探傷検査部分を磁気飽和状態に直流磁
化する磁気飽和部材と、該磁気飽和部材による飽
和直流磁界内に配設されて鋼管の欠陥部位で生ず
る磁力変化を検出する検出コイルとを備え、前記
検出コイルは１つまたは複数の変形空芯形コイル
により構成され、該変形空芯形コイルのコイル中
心方向は鋼管の円周方向であることからなる鋼管
渦流探傷器の内挿プローブ。 A probe for detecting the presence or absence of defects in a steel pipe by eddy current testing by transporting it inside a steel pipe, which includes a magnetic saturation member that direct current magnetizes the testing portion of the steel pipe to a magnetically saturated state, and a probe made of the magnetic saturation member. a detection coil disposed in a saturated DC magnetic field to detect changes in magnetic force occurring at defective parts of the steel pipe, the detection coil being composed of one or more deformed air-core coils, and the deformed air-core coil An interpolation probe of a steel pipe eddy current flaw detector, in which the coil center direction is the circumferential direction of the steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP799185U JPS61125766U (en) | 1985-01-25 | 1985-01-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP799185U JPS61125766U (en) | 1985-01-25 | 1985-01-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61125766U true JPS61125766U (en) | 1986-08-07 |
Family
ID=30486860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP799185U Pending JPS61125766U (en) | 1985-01-25 | 1985-01-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61125766U (en) |
-
1985
- 1985-01-25 JP JP799185U patent/JPS61125766U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3811039B2 (en) | Magnetic leak detection sensor for magnetic flaw detector | |
| GB2245072B (en) | Eddy current probe,incorporating multi-bracelets of different pancake coil diameters,for detecting internal defects in ferromagnetic tubes | |
| US4063157A (en) | Magnetic testing device for internal surfaces of pipe using a magnetizing means and expandable magnetizable material within the pipe | |
| JPS61125766U (en) | ||
| JPS61125765U (en) | ||
| JPS62126345A (en) | Probe for eddy current flaw detection | |
| JPS637895Y2 (en) | ||
| JPS5910500B2 (en) | Internal flaw detection type magnetic flaw detection device | |
| JPH0230050U (en) | ||
| JPS61161659U (en) | ||
| JPH03105245A (en) | Remote field type probe for eddy current flaw detection | |
| JPH0355099Y2 (en) | ||
| JPH0425653Y2 (en) | ||
| JPH0338695Y2 (en) | ||
| JP2502078Y2 (en) | Separated eddy current flaw detector | |
| JPH03118465A (en) | Detecting apparatus for defect inside tube | |
| JPH07151732A (en) | Steel tube end magnetization device | |
| JPH08226913A (en) | Eddy-current flaw detector | |
| JPS60147648A (en) | Method and device for flaw detection | |
| JPS6311653Y2 (en) | ||
| JPS5935807Y2 (en) | Eddy current flaw detection equipment | |
| JPH0368054U (en) | ||
| JPH0439031B2 (en) | ||
| JPS5916846Y2 (en) | Eddy current probe magnetic field measuring device | |
| JPS6341763U (en) |