JPH03122357U - - Google Patents
Info
- Publication number
- JPH03122357U JPH03122357U JP3029590U JP3029590U JPH03122357U JP H03122357 U JPH03122357 U JP H03122357U JP 3029590 U JP3029590 U JP 3029590U JP 3029590 U JP3029590 U JP 3029590U JP H03122357 U JPH03122357 U JP H03122357U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- detection
- detection element
- degrees
- excitation coil
- 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
- 230000005284 excitation Effects 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案の一実施例の一部の簡略化した
平面図、第２図は本考案の一実施例の断面図、第
３図は磁気検出素子５ａ，５ｂの斜視図、第４図
は管１の減肉部６付近の断面図、第５図は磁気検
出素子５ａ，５ｂに関連して接続される電気回路
図、第６図は動作を説明するための波形図、第７
図は、本件考案者の実験結果を示す角度θに依存
する差動出力を示すグラフ、第８図は本考案の他
の実施例の簡略化した平面図、第９図は本件考案
者の実験を説明するための簡略化した平面図、第
１０図は第９図に示される実験の結果を示すグラ
フである。
１……管、３……コア、４……励磁コイル、５
，５ａ，５ｂ……磁気検出素子、６……減肉部、
１２……管軸方向、１３……半径方向、１４……
垂直方向、１８……差動演算回路。
FIG. 1 is a simplified plan view of a part of an embodiment of the present invention, FIG. 2 is a sectional view of an embodiment of the present invention, FIG. 3 is a perspective view of magnetic detection elements 5a and 5b, and FIG. The figure is a sectional view of the vicinity of the thinned part 6 of the pipe 1, FIG. 5 is an electric circuit diagram connected in relation to the magnetic detection elements 5a and 5b, FIG.
The figure is a graph showing the differential output depending on the angle θ, which shows the experimental results of the inventor of the present invention, FIG. 8 is a simplified plan view of another embodiment of the present invention, and FIG. 9 is the experiment of the inventor of the present invention. FIG. 10 is a graph showing the results of the experiment shown in FIG. 9. 1...tube, 3...core, 4...excitation coil, 5
, 5a, 5b...magnetic detection element, 6... thinned part,
12...Pipe axis direction, 13...Radial direction, 14...
Vertical direction, 18... Differential calculation circuit.
Claims (1)
領域に磁気検出素子を配置して構成される磁気探
傷装置において、 一対の磁気検出素子の各検出感度が高い方向を
、励磁コイルによつて形成される磁界の方向と、
被検出物の厚み方向とにそれぞれ垂直な方向に対
して、０度を超え、９０度未満の角度を有して設
定し、各磁気検出素子の出力を差動演算する回路
を備えることを特徴とする磁気探傷装置。 (2) 各磁気検出素子は、前記垂直方向にずれて
配置されることを特徴とする実用新案登録請求の
範囲第１項記載の磁気探傷装置。[Scope of Claim for Utility Model Registration] (1) In a magnetic flaw detection device configured by arranging a magnetic detection element in a region magnetized by an excitation coil of an object to be detected, each detection sensitivity of a pair of magnetic detection elements is The higher direction is the direction of the magnetic field formed by the excitation coil,
It is characterized by having a circuit that is set at an angle of more than 0 degrees and less than 90 degrees with respect to a direction perpendicular to the thickness direction of the object to be detected, and that performs differential calculation of the output of each magnetic detection element. Magnetic flaw detection equipment. (2) The magnetic flaw detection apparatus according to claim 1, wherein each magnetic detection element is arranged offset in the vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3029590U JPH03122357U (en) | 1990-03-24 | 1990-03-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3029590U JPH03122357U (en) | 1990-03-24 | 1990-03-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03122357U true JPH03122357U (en) | 1991-12-13 |
Family
ID=31533019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3029590U Pending JPH03122357U (en) | 1990-03-24 | 1990-03-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03122357U (en) |
-
1990
- 1990-03-24 JP JP3029590U patent/JPH03122357U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6442402U (en) | ||
| JPH03122357U (en) | ||
| JPH0424062U (en) | ||
| JPS5891155U (en) | Eddy current flaw detection probe | |
| JPH0340573U (en) | ||
| JPH03114008U (en) | ||
| JPH0333362U (en) | ||
| JPH02135856U (en) | ||
| JPH01126540U (en) | ||
| JPH02131657U (en) | ||
| JPS6397852U (en) | ||
| JPS6370020U (en) | ||
| JPH03125255U (en) | ||
| KR960014933A (en) | Magnetic particle detection magnetizer | |
| JPS6230109U (en) | ||
| JPH03128850U (en) | ||
| JPS6438518U (en) | ||
| JPH0275567U (en) | ||
| JPS6350065U (en) | ||
| JPH03125254U (en) | ||
| JPH0243615U (en) | ||
| JPH01146164U (en) | ||
| JPH0434679U (en) | ||
| JPH0483206U (en) | ||
| JPS61152964U (en) |