JPS61125765U - - Google Patents
Info
- Publication number
- JPS61125765U JPS61125765U JP799085U JP799085U JPS61125765U JP S61125765 U JPS61125765 U JP S61125765U JP 799085 U JP799085 U JP 799085U JP 799085 U JP799085 U JP 799085U JP S61125765 U JPS61125765 U JP S61125765U
- Authority
- JP
- Japan
- Prior art keywords
- steel pipe
- probe
- detection coil
- magnetic
- magnetic saturation
- 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
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000000523 sample Substances 0.000 claims description 4
- 229920006395 saturated elastomer Polymers 0.000 claims 2
- 230000007547 defect Effects 0.000 claims 1
- 230000002950 deficient Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Description
第１図は本考案の内挿プローブを示す部分断面
図。第２図および第３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図。
第４図および第５図は第２図および第３図に示す
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 and 3 are views similar to the line AA in FIG. 1, schematically showing the configuration of the detection coil.
FIGS. 4 and 5 are diagrams showing practical examples of the detection coils shown in FIGS. 2 and 3, respectively. 1... Steel pipe, 2... Magnetic saturation member, 3... Detection coil.
Claims (1)
流探傷検査により検出するためのプロープであつ
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 being transferred into a steel pipe, comprising 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 arranged in a saturated DC magnetic field to detect changes in magnetic force occurring at a defective part of a steel pipe, the detection coil comprising one or more modified air-core coils. instrument interpolation probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP799085U JPS61125765U (en) | 1985-01-25 | 1985-01-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP799085U JPS61125765U (en) | 1985-01-25 | 1985-01-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61125765U true JPS61125765U (en) | 1986-08-07 |
Family
ID=30486858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP799085U Pending JPS61125765U (en) | 1985-01-25 | 1985-01-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61125765U (en) |
-
1985
- 1985-01-25 JP JP799085U patent/JPS61125765U/ja active Pending
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