JPS5543420A - Metallic material examination device - Google Patents
Metallic material examination deviceInfo
- Publication number
- JPS5543420A JPS5543420A JP11650078A JP11650078A JPS5543420A JP S5543420 A JPS5543420 A JP S5543420A JP 11650078 A JP11650078 A JP 11650078A JP 11650078 A JP11650078 A JP 11650078A JP S5543420 A JPS5543420 A JP S5543420A
- Authority
- JP
- Japan
- Prior art keywords
- bridge
- sample
- metallic material
- sensor
- examination device
- 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
PURPOSE: To know the data comprising a real number and an imaginary number of the unbalanced output as vector quantity by using a bridge including a coil sensor.
CONSTITUTION: When the coil sensor 2 forming the bridge 3 is contacted with the conductive metalic sample 1 to be measured, impedance of the coils L1, L2 changes owing to the eddy current. The unbalanced portion of the bridge 3 is demodulated as the real number portion and the imaginary number portion by the synchronous detectors 6 and 7 and operated 10, 11 through LPF 8, 9 to obtain the vector length signal and the angle signal. When the sensor 2 is stably contacted with the sample and the switch SW1 is turned ON, the vector length signal and the angle signal can be respectively to the display unit 14, 15.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11650078A JPS5543420A (en) | 1978-09-25 | 1978-09-25 | Metallic material examination device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11650078A JPS5543420A (en) | 1978-09-25 | 1978-09-25 | Metallic material examination device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5543420A true JPS5543420A (en) | 1980-03-27 |
Family
ID=14688662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11650078A Pending JPS5543420A (en) | 1978-09-25 | 1978-09-25 | Metallic material examination device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5543420A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56130652A (en) * | 1980-03-18 | 1981-10-13 | Anritsu Corp | Metal discriminating device |
| US4364012A (en) * | 1980-03-03 | 1982-12-14 | The Board Of Trustees Of The Leland Stanford Junior University | FMR Probe method utilizing main and spurious resonance modes for detecting surface flaws |
| JPS61187647A (en) * | 1985-02-15 | 1986-08-21 | Nippon Kokan Kk <Nkk> | Apparatus for measuring silicon content |
| JP2011064590A (en) * | 2009-09-17 | 2011-03-31 | Ebara Corp | Eddy current sensor, polishing apparatus, plating apparatus, polishing method, plating method |
| JP2019015655A (en) * | 2017-07-10 | 2019-01-31 | 国立研究開発法人物質・材料研究機構 | Metal bars corrosion detection system, and metal bars corrosion detection method |
-
1978
- 1978-09-25 JP JP11650078A patent/JPS5543420A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4364012A (en) * | 1980-03-03 | 1982-12-14 | The Board Of Trustees Of The Leland Stanford Junior University | FMR Probe method utilizing main and spurious resonance modes for detecting surface flaws |
| JPS56130652A (en) * | 1980-03-18 | 1981-10-13 | Anritsu Corp | Metal discriminating device |
| JPH0322585B2 (en) * | 1980-03-18 | 1991-03-27 | Anritsu Corp | |
| JPS61187647A (en) * | 1985-02-15 | 1986-08-21 | Nippon Kokan Kk <Nkk> | Apparatus for measuring silicon content |
| JP2011064590A (en) * | 2009-09-17 | 2011-03-31 | Ebara Corp | Eddy current sensor, polishing apparatus, plating apparatus, polishing method, plating method |
| JP2019015655A (en) * | 2017-07-10 | 2019-01-31 | 国立研究開発法人物質・材料研究機構 | Metal bars corrosion detection system, and metal bars corrosion detection method |
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