JPS54102896A - Exciting and controlling unit for superconduction electromagnet - Google Patents
Exciting and controlling unit for superconduction electromagnetInfo
- Publication number
- JPS54102896A JPS54102896A JP908978A JP908978A JPS54102896A JP S54102896 A JPS54102896 A JP S54102896A JP 908978 A JP908978 A JP 908978A JP 908978 A JP908978 A JP 908978A JP S54102896 A JPS54102896 A JP S54102896A
- Authority
- JP
- Japan
- Prior art keywords
- current
- coil
- superconduction
- circuit
- exciting
- 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
- Containers, Films, And Cooling For Superconductive Devices (AREA)
Abstract
PURPOSE: To perform safe excitation, by separating and detecting the fine voltage of pre-phenomenon shifted from superconducting to normal conduction from noise.
CONSTITUTION: The DC current supply source 2 increases the exciting current fed to the superconduction magnetic coil 1 with the current pattern generation circuit 3 in the integration of the rectangular waves having repetitive frequency, that is, in the pattern repeating increased process and unchanged process. Further, the coil voltage detection terminal is placed to the part 1a which is expected for many quenching phenomena(superconduction is partially changed to normal conduction, that is, resistance is produced in the coil) taking into consideration the strength of operating magnetic field and cooling condition, the coil voltage detection circuit 4 selectively detects only the AC components in synchronizing with the said repetitive frequency to reject the noise component from the output signal, and when the voltage level is in excess of the specified value b, the current control circuit 5 gives instruction to the circuit 3, reducing or interrupting the output current of the current supply source 2, that is, exciting current, allowing to prevent the super conduction from perfectly being reached to the point C where it is perfectly lost.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP908978A JPS54102896A (en) | 1978-01-30 | 1978-01-30 | Exciting and controlling unit for superconduction electromagnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP908978A JPS54102896A (en) | 1978-01-30 | 1978-01-30 | Exciting and controlling unit for superconduction electromagnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54102896A true JPS54102896A (en) | 1979-08-13 |
Family
ID=11710881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP908978A Pending JPS54102896A (en) | 1978-01-30 | 1978-01-30 | Exciting and controlling unit for superconduction electromagnet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54102896A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100929657B1 (en) | 2007-08-23 | 2009-12-03 | 한국기초과학지원연구원 | Quench detection device and real-time quench monitoring system of superconducting tokamak device |
| JP2011100859A (en) * | 2009-11-06 | 2011-05-19 | Japan Superconductor Technology Inc | Excitation power source for superconductive magnet |
-
1978
- 1978-01-30 JP JP908978A patent/JPS54102896A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100929657B1 (en) | 2007-08-23 | 2009-12-03 | 한국기초과학지원연구원 | Quench detection device and real-time quench monitoring system of superconducting tokamak device |
| JP2011100859A (en) * | 2009-11-06 | 2011-05-19 | Japan Superconductor Technology Inc | Excitation power source for superconductive magnet |
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