JPS564049A - Swirl type flaw detector - Google Patents
Swirl type flaw detectorInfo
- Publication number
- JPS564049A JPS564049A JP8041579A JP8041579A JPS564049A JP S564049 A JPS564049 A JP S564049A JP 8041579 A JP8041579 A JP 8041579A JP 8041579 A JP8041579 A JP 8041579A JP S564049 A JPS564049 A JP S564049A
- Authority
- JP
- Japan
- Prior art keywords
- flaw detector
- cylindrical
- swirl type
- cylindrical conductor
- flaw
- 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.)
- Granted
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
PURPOSE: To detect a flaw in a material at a high accuracy by using a swirl type flaw detector having a cylindrical coil provided therein with a cylindrical conductor which contains nonconductive ferromagnetic elements therein, wherein the cylindrical conductor is rotated via a motor-driven shaft to cause an impedance of the cylindrical coil to be varied.
CONSTITUTION: A cylindrical conductor 2, which has nonconductive ferromagnetic elements 41W43 in cavities 31W33 extended inwardly from the outer surface thereof, is disposed in a cylindrical coil 1. The cylindrical conductor 2 is rotated via a motor-driven shaft 8'. Leaf springs 11 are fastened to a retainer frame 9 at one end of each thereof, and to a stationary part 12 at the other end of the same. A swirl type flaw detector of the above-described structure is pressed against a material 5 to be inspected as the latter is moved. As a result, a flaw detecting operation can be carried out in an excellent manner owing to the leaf springs 11 which allow the flaw detector to react with the vibrations of the material 5 being inspected.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8041579A JPS5836306B2 (en) | 1979-06-26 | 1979-06-26 | Eddy current flaw detection equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8041579A JPS5836306B2 (en) | 1979-06-26 | 1979-06-26 | Eddy current flaw detection equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS564049A true JPS564049A (en) | 1981-01-16 |
JPS5836306B2 JPS5836306B2 (en) | 1983-08-08 |
Family
ID=13717653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8041579A Expired JPS5836306B2 (en) | 1979-06-26 | 1979-06-26 | Eddy current flaw detection equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5836306B2 (en) |
-
1979
- 1979-06-26 JP JP8041579A patent/JPS5836306B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5836306B2 (en) | 1983-08-08 |
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