FI98411B - Parannettu virtalähde - Google Patents

Parannettu virtalähde

Info

Publication number: FI98411B
Authority: FI; Finland
Prior art keywords: power source; improved power; improved; source; power
Prior art date: 1993-08-20

Application number

FI933675A

Other languages

English (en)

Swedish (sv)

Other versions

FI933675L (fi

FI933675A0 (fi

FI98411C (fi

Inventor

Goesta Ehnholm

Seppo Pekonen

Juha Virtanen

Original Assignee

Picker Nordstar Oy

Priority date (The priority date 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 date listed.)

1993-08-20

Filing date

1993-08-20

Publication date

1997-02-28

1993-08-20 Application filed by Picker Nordstar Oy filed Critical Picker Nordstar Oy

1993-08-20 Priority to FI933675A priority Critical patent/FI98411C/fi

1993-08-20 Publication of FI933675A0 publication Critical patent/FI933675A0/fi

1994-08-19 Priority to US08/293,379 priority patent/US5570022A/en

1995-02-21 Publication of FI933675L publication Critical patent/FI933675L/fi

1997-02-28 Application granted granted Critical

1997-02-28 Publication of FI98411B publication Critical patent/FI98411B/fi

1997-06-10 Publication of FI98411C publication Critical patent/FI98411C/fi

Classifications

- 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
- G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
- G01R33/381—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using electromagnets

Landscapes

Physics & Mathematics (AREA)
Electromagnetism (AREA)
Condensed Matter Physics & Semiconductors (AREA)
General Physics & Mathematics (AREA)
Magnetic Resonance Imaging Apparatus (AREA)

FI933675A 1993-08-20 1993-08-20 Parannettu virtalähde FI98411C (fi)

Priority Applications (2)

Application Number	Priority Date	Filing Date	Title
FI933675A FI98411C (fi)	1993-08-20	1993-08-20	Parannettu virtalähde
US08/293,379 US5570022A (en)	1993-08-20	1994-08-19	Power supply for MRI magnets

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FI933675		1993-08-20
FI933675A FI98411C (fi)	1993-08-20	1993-08-20	Parannettu virtalähde

Publications (4)

Publication Number	Publication Date
FI933675A0 FI933675A0 (fi)	1993-08-20
FI933675L FI933675L (fi)	1995-02-21
FI98411B true FI98411B (fi)	1997-02-28
FI98411C FI98411C (fi)	1997-06-10

Family

ID=8538448

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI933675A FI98411C (fi)	1993-08-20	1993-08-20	Parannettu virtalähde

Country Status (2)

Country	Link
US (1)	US5570022A (fi)
FI (1)	FI98411C (fi)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5726571A (en) *	1996-04-24	1998-03-10	The Regents Of The University Of California	Apparatus and method for real-time k-space mapping of the scanning operation of a magnetic resonance imaging system
US6459265B1 (en) *	1998-11-25	2002-10-01	General Electric Company	Method and apparatus for reducing input impedance of a preamplifier
US8027139B2 (en) *	2009-05-11	2011-09-27	General Electric Company	System and method for superconducting magnet ramp-down
US10067203B2 (en) *	2015-10-09	2018-09-04	General Electric Company	Energy storage solution for an MRI system
JP7098539B2 (ja)	2016-06-22	2022-07-11	ビューレイ・テクノロジーズ・インコーポレイテッド	磁気共鳴イメージング
US11209509B2 (en)	2018-05-16	2021-12-28	Viewray Technologies, Inc.	Resistive electromagnet systems and methods

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3405326A (en) *	1965-06-04	1968-10-08	Atomic Energy Commission Usa	Magnet sweep control circuit
US4030085A (en) *	1976-07-20	1977-06-14	The United States Of America As Represented By The United States Energy Research And Development Administration	Nonferromagnetic linear variable differential transformer
DK149238C (da) *	1983-09-15	1987-01-19	Danfysik As	Detektorkredslaeb til brug ved straemmaaling
KR900004956B1 (ko) *	1985-04-05	1990-07-12	니뽕 빅터 가부시끼 가이샤	텔레비젼 수상기 및 그 전원회로
US4768002A (en) *	1987-02-24	1988-08-30	Triad Microsystems, Inc.	Power filter resonant frequency modulation network
US4893070A (en) *	1989-02-28	1990-01-09	The United States Of America As Represented By The Secretary Of The Air Force	Domino effect shunt voltage regulator
GB8929300D0 (en) *	1989-12-29	1990-02-28	Instrumentarium Corp	Apparatus
US5063349A (en) *	1990-06-04	1991-11-05	General Electric Company	Transformer-coupled gradient speed-up circuit
US5172061A (en) *	1990-09-18	1992-12-15	The Regents Of The University Of California	Q control for capacitively coupled MRI/MRSI RF coil
DE69124766T2 (de) *	1990-10-08	1997-07-03	Canon Kk	Elektronenwelleninterferenz-Bauelement und diesbezügliches Verfahren zur Modulation eines Interferenzstromes
DE4033281A1 (de) *	1990-10-19	1992-04-23	Bruker Analytische Messtechnik	Hochleistungsnetzgeraet
US5166620A (en) *	1990-11-07	1992-11-24	Advanced Techtronics, Inc.	Nmr frequency locking circuit
US5260862A (en) *	1991-03-06	1993-11-09	Constant Velocity Transmission Lines, Inc.	A-C power line filter
US5450011A (en) *	1992-05-07	1995-09-12	U.S. Philips Corporation	Magnetic resonance apparatus having a wideband matching network

1993
- 1993-08-20 FI FI933675A patent/FI98411C/fi active
1994
- 1994-08-19 US US08/293,379 patent/US5570022A/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
FI933675L (fi)	1995-02-21
FI933675A0 (fi)	1993-08-20
FI98411C (fi)	1997-06-10
US5570022A (en)	1996-10-29

Publication	Publication Date	Title
DE69434281D1 (de)	2005-04-07	Stromversorgung
DE59408538D1 (de)	1999-09-02	Elektrowerkzeug
DE69513185D1 (de)	1999-12-09	Hochsymmetrische bidirektionale Stromquelle
DE69523547D1 (de)	2001-12-06	Einstellbare Stromquelle
DE69629337D1 (de)	2003-09-11	Schweissleistungsquelle
DE59406607D1 (de)	1998-09-10	Konstantstromquelle
DE69413793D1 (de)	1998-11-12	Stromquelle
NO960636D0 (no)	1996-02-16	Kraft-forsterker
FI98411B (fi)	1997-02-28	Parannettu virtalähde
DE69410654D1 (de)	1998-07-09	Stromquelle
DE69429080D1 (de)	2001-12-20	Konstantstromquelle
ITMI942213A0 (it)	1994-10-28	Sorgente di corrente costante
DE69125089D1 (de)	1997-04-17	Stromquelle
DE59404502D1 (de)	1997-12-11	Stromquellenanordnung
DE69408688D1 (de)	1998-04-02	Energiespeicher - schwungrad
FI933782A7 (fi)	1995-03-01	Voimayksikkö
FI2295U1 (fi)	1996-01-31	Polttomoottorikäyttöinen virtalähde
KR940025649U (ko)	1994-11-18	전원공급장치
KR950021839U (ko)	1995-07-28	전원 공급기
KR950021728U (ko)	1995-07-28	전원 공급장치
KR950002124U (ko)	1995-01-04	전원 공급장치
KR950015694U (ko)	1995-06-19	전원공급장치
KR950021721U (ko)	1995-07-28	전원 공급 장치
SE9301377D0 (sv)	1993-04-26	Kraftaggregat
SK1559U (sk)	1997-08-06	Zdroj elektrickej energie

Legal Events

Date	Code	Title	Description
1997-02-03	BB	Publication of examined application