JPS6061656U - Eddy current flaw detection sensor - Google Patents
Eddy current flaw detection sensorInfo
- Publication number
- JPS6061656U JPS6061656U JP15411883U JP15411883U JPS6061656U JP S6061656 U JPS6061656 U JP S6061656U JP 15411883 U JP15411883 U JP 15411883U JP 15411883 U JP15411883 U JP 15411883U JP S6061656 U JPS6061656 U JP S6061656U
- Authority
- JP
- Japan
- Prior art keywords
- sensor
- eddy current
- workpiece
- current flaw
- flaw detection
- 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
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図〜第３図は従来の渦流探傷用センサの説明図、第
４図は探傷が行われるワークの説明図、第５図は本考案
に係る渦流探傷用センサの平面説明図、第６図は第５図
に示すセンサの側断面説明図、第７図はセンサの磁束分
布を示す説明図、第８図は本実施例のセンサの電気回路
図である。
１２・・・ワーク、２０．２２・・・検出コイル、２４
・・・センサ感応部、２６・・・発振回路。1 to 3 are explanatory diagrams of a conventional eddy current flaw detection sensor, FIG. 4 is an explanatory diagram of a workpiece to be inspected, FIG. 5 is a plane explanatory diagram of the eddy current flaw detection sensor according to the present invention, and FIG. 7 is an explanatory side cross-sectional view of the sensor shown in FIG. 5, FIG. 7 is an explanatory view showing the magnetic flux distribution of the sensor, and FIG. 8 is an electric circuit diagram of the sensor of this embodiment. 12... Work, 20.22... Detection coil, 24
...sensor sensitive section, 26...oscillation circuit.
Claims (3)
隣接配置されてなる一対の検出コイルと、両検出コイル
間に設置され強磁性体をもって形成されたセンサ感応部
と、を含み、センサ感応部をワークに近接することによ
り発生する両検出コイルの結合−係数の変化に基づきワ
ークの探傷を行うことを特徴とする渦流探傷用センサ。(1) A sensor sensitive part including a pair of detection coils arranged adjacent to each other with the coil center axis facing the workpiece approach method, and a sensor sensitive part installed between both detection coils and formed of a ferromagnetic material. An eddy current flaw detection sensor is characterized in that a workpiece is detected for flaws based on a change in the coupling coefficient of both detection coils that occurs when the sensor approaches the workpiece.
いて、両検出コイルは所定の発振回路を構成し、結合係
数の変化を発振周波数変化として出力することを特徴と
する渦流探傷用センサ。(2) Utility Model Registration The sensor according to claim (1), wherein both detection coils constitute a predetermined oscillation circuit, and a change in coupling coefficient is output as a change in oscillation frequency.
いずれかに記載のセンサにおいて、センサ感応部はその
形状がワークの外形形状にあわせて形成されたことを特
徴とする渦流探傷用センサ。(3) A sensor for eddy current flaw detection according to any one of claims (1) and (2) for utility model registration, characterized in that the shape of the sensor sensitive part is formed to match the external shape of the workpiece. sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15411883U JPS6061656U (en) | 1983-10-04 | 1983-10-04 | Eddy current flaw detection sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15411883U JPS6061656U (en) | 1983-10-04 | 1983-10-04 | Eddy current flaw detection sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6061656U true JPS6061656U (en) | 1985-04-30 |
Family
ID=30340775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15411883U Pending JPS6061656U (en) | 1983-10-04 | 1983-10-04 | Eddy current flaw detection sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6061656U (en) |
-
1983
- 1983-10-04 JP JP15411883U patent/JPS6061656U/en active Pending
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