DE3889425T2 - Schalter für Einsatz in starken Magnetfeldern. - Google Patents
Schalter für Einsatz in starken Magnetfeldern.Info
- Publication number
- DE3889425T2 DE3889425T2 DE3889425T DE3889425T DE3889425T2 DE 3889425 T2 DE3889425 T2 DE 3889425T2 DE 3889425 T DE3889425 T DE 3889425T DE 3889425 T DE3889425 T DE 3889425T DE 3889425 T2 DE3889425 T2 DE 3889425T2
- Authority
- DE
- Germany
- Prior art keywords
- coil
- switch according
- contact
- opening
- magnetic field
- 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
- 230000005291 magnetic effect Effects 0.000 title claims description 77
- 230000003068 static effect Effects 0.000 claims description 24
- 239000003990 capacitor Substances 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 13
- 239000000696 magnetic material Substances 0.000 claims description 9
- 230000003993 interaction Effects 0.000 claims description 5
- 238000013421 nuclear magnetic resonance imaging Methods 0.000 claims description 5
- 238000002595 magnetic resonance imaging Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000005481 NMR spectroscopy Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
- G01R33/3621—NMR receivers or demodulators, e.g. preamplifiers, means for frequency modulation of the MR signal using a digital down converter, means for analog to digital conversion [ADC] or for filtering or processing of the MR signal such as bandpass filtering, resampling, decimation or interpolation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/28—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
- G01R33/3642—Mutual coupling or decoupling of multiple coils, e.g. decoupling of a receive coil from a transmission coil, or intentional coupling of RF coils, e.g. for RF magnetic field amplification
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62289402A JPH01131651A (ja) | 1987-11-18 | 1987-11-18 | 磁気共鳴診断装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3889425D1 DE3889425D1 (de) | 1994-06-09 |
| DE3889425T2 true DE3889425T2 (de) | 1994-08-25 |
Family
ID=17742767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE3889425T Expired - Lifetime DE3889425T2 (de) | 1987-11-18 | 1988-11-17 | Schalter für Einsatz in starken Magnetfeldern. |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4954924A (cg-RX-API-DMAC7.html) |
| EP (1) | EP0316901B1 (cg-RX-API-DMAC7.html) |
| JP (1) | JPH01131651A (cg-RX-API-DMAC7.html) |
| KR (1) | KR910006237B1 (cg-RX-API-DMAC7.html) |
| DE (1) | DE3889425T2 (cg-RX-API-DMAC7.html) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8137719B2 (en) * | 2004-08-27 | 2012-03-20 | Adm Alliance Nutrition, Inc. | High-fat animal feed pellets and method for making same |
| DE102011087485B3 (de) * | 2011-11-30 | 2013-05-29 | Siemens Aktiengesellschaft | Magnetresonanztomographie-Anlage, Verfahren zum Ausgleichen einer Feldinhomogenität in der Anlage und Shimspulenanordnung |
| JP6808434B2 (ja) * | 2016-10-05 | 2021-01-06 | 富士通コンポーネント株式会社 | 電磁継電器 |
| CN109961969B (zh) * | 2017-12-26 | 2023-03-24 | Abb瑞士股份有限公司 | 一种装置和一种包括装置的开关 |
| CN111494010B (zh) * | 2020-04-28 | 2022-03-29 | 绍兴梅奥心磁医疗科技有限公司 | 磁导航系统 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT246836B (de) * | 1964-03-13 | 1966-05-10 | Naimer H L | Elektrisches Schaltschütz |
| DE3421830A1 (de) * | 1984-06-13 | 1985-12-19 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Kernspinresonanzgeraet mit einem stellglied zur anpassung oder zum nachstimmen des resonators |
| EP0173353B1 (en) * | 1984-08-31 | 1991-09-18 | Omron Tateisi Electronics Co. | Electromagnetic relay with linearly moving armature assembly |
| FR2570872B1 (fr) * | 1984-09-27 | 1988-08-26 | Telemecanique Electrique | Dispositif de commutation a composition variable |
| JPS62206734A (ja) * | 1986-03-05 | 1987-09-11 | 富士電機株式会社 | 回路しや断器 |
| DE3625342A1 (de) * | 1986-07-26 | 1988-01-28 | Philips Patentverwaltung | Relais zur anwendung in einem stationaeren magnetfeld, insbesondere fuer kernspin-untersuchungsgeraete |
| US4725801A (en) * | 1986-10-24 | 1988-02-16 | Hamilton Standard Controls, Inc. | Bistable solenoid switch |
-
1987
- 1987-11-18 JP JP62289402A patent/JPH01131651A/ja active Granted
-
1988
- 1988-11-14 KR KR1019880014974A patent/KR910006237B1/ko not_active Expired
- 1988-11-16 US US07/271,833 patent/US4954924A/en not_active Expired - Lifetime
- 1988-11-17 EP EP88119119A patent/EP0316901B1/en not_active Expired - Lifetime
- 1988-11-17 DE DE3889425T patent/DE3889425T2/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US4954924A (en) | 1990-09-04 |
| JPH01131651A (ja) | 1989-05-24 |
| KR890008875A (ko) | 1989-07-12 |
| KR910006237B1 (ko) | 1991-08-17 |
| EP0316901A2 (en) | 1989-05-24 |
| EP0316901A3 (en) | 1991-03-27 |
| DE3889425D1 (de) | 1994-06-09 |
| JPH0464259B2 (cg-RX-API-DMAC7.html) | 1992-10-14 |
| EP0316901B1 (en) | 1994-05-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition | ||
| 8320 | Willingness to grant licences declared (paragraph 23) |