JPH0523361B2 - - Google Patents
Info
- Publication number
- JPH0523361B2 JPH0523361B2 JP27316184A JP27316184A JPH0523361B2 JP H0523361 B2 JPH0523361 B2 JP H0523361B2 JP 27316184 A JP27316184 A JP 27316184A JP 27316184 A JP27316184 A JP 27316184A JP H0523361 B2 JPH0523361 B2 JP H0523361B2
- Authority
- JP
- Japan
- Prior art keywords
- secondary coil
- coil
- eddy current
- metal plate
- distance
- 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.)
- Expired - Lifetime
Links
- 238000005259 measurement Methods 0.000 claims description 24
- 230000006698 induction Effects 0.000 claims description 14
- 239000002184 metal Substances 0.000 description 22
- 238000006073 displacement reaction Methods 0.000 description 9
- 230000035945 sensitivity Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000013535 sea water Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27316184A JPS61151402A (ja) | 1984-12-26 | 1984-12-26 | 差動相互誘導型渦流計測用センサ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27316184A JPS61151402A (ja) | 1984-12-26 | 1984-12-26 | 差動相互誘導型渦流計測用センサ |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61151402A JPS61151402A (ja) | 1986-07-10 |
JPH0523361B2 true JPH0523361B2 (ru) | 1993-04-02 |
Family
ID=17523945
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP27316184A Granted JPS61151402A (ja) | 1984-12-26 | 1984-12-26 | 差動相互誘導型渦流計測用センサ |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61151402A (ru) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01118303U (ru) * | 1988-01-29 | 1989-08-10 | ||
US6593737B2 (en) * | 2000-08-24 | 2003-07-15 | Shell Oil Company | Method for measuring the wall thickness of an electrically conductive object |
US6707296B2 (en) * | 2000-08-24 | 2004-03-16 | Shell Oil Company | Method for detecting cracks in electrically conducting material |
US6570379B2 (en) * | 2000-08-24 | 2003-05-27 | Shell Oil Company | Method for inspecting an object of electrically conducting material |
JP2003004407A (ja) * | 2001-06-20 | 2003-01-08 | Sankyo Seiki Mfg Co Ltd | 変位測定装置 |
JP5513821B2 (ja) * | 2009-09-17 | 2014-06-04 | 株式会社荏原製作所 | 渦電流センサ、研磨装置、めっき装置、研磨方法、めっき方法 |
JP4975142B2 (ja) * | 2010-06-17 | 2012-07-11 | トヨタ自動車株式会社 | 渦流計測用センサ及び渦流計測方法 |
JP2017142200A (ja) * | 2016-02-12 | 2017-08-17 | 株式会社東海理化電機製作所 | 位置検出装置 |
DE112021008267T5 (de) * | 2021-09-24 | 2024-07-18 | Mitsubishi Electric Corporation | Ausrichtungsrichtung-erfassungsvorrichtung |
-
1984
- 1984-12-26 JP JP27316184A patent/JPS61151402A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS61151402A (ja) | 1986-07-10 |
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