AU3265093A - Gradient field control - Google Patents

Gradient field control

Info

Publication number
AU3265093A
AU3265093A AU32650/93A AU3265093A AU3265093A AU 3265093 A AU3265093 A AU 3265093A AU 32650/93 A AU32650/93 A AU 32650/93A AU 3265093 A AU3265093 A AU 3265093A AU 3265093 A AU3265093 A AU 3265093A
Authority
AU
Australia
Prior art keywords
field control
gradient field
gradient
control
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.)
Abandoned
Application number
AU32650/93A
Inventor
Peter Simon Aptaker
Paul Beasley
David Arthur Morris
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oxford Instruments UK Ltd
Original Assignee
Oxford Instruments UK Ltd
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.)
Filing date
Publication date
Application filed by Oxford Instruments UK Ltd filed Critical Oxford Instruments UK Ltd
Publication of AU3265093A publication Critical patent/AU3265093A/en
Abandoned legal-status Critical Current

Links

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
    • G01R33/385—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using gradient magnetic field coils
    • G01R33/3852—Gradient amplifiers; means for controlling the application of a gradient magnetic field to the sample, e.g. a gradient signal synthesizer

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
AU32650/93A 1992-01-15 1993-01-15 Gradient field control Abandoned AU3265093A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB929200812A GB9200812D0 (en) 1992-01-15 1992-01-15 Gradient field control
GB9200812 1992-01-15

Publications (1)

Publication Number Publication Date
AU3265093A true AU3265093A (en) 1993-08-03

Family

ID=10708629

Family Applications (1)

Application Number Title Priority Date Filing Date
AU32650/93A Abandoned AU3265093A (en) 1992-01-15 1993-01-15 Gradient field control

Country Status (5)

Country Link
EP (1) EP0621955A1 (en)
JP (1) JPH07502671A (en)
AU (1) AU3265093A (en)
GB (1) GB9200812D0 (en)
WO (1) WO1993014414A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1212631A2 (en) * 1999-11-19 2002-06-12 Koninklijke Philips Electronics N.V. Mri apparatus with a feed forward loop inserted in the gradient loop
JP2006518242A (en) 2003-02-05 2006-08-10 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ Compensation of magnetic field disturbance due to vibration of MRI system
EP1728088A1 (en) * 2004-03-16 2006-12-06 Koninklijke Philips Electronics N.V. Magnetic resonance imaging device with an active shielding device
US7319326B2 (en) 2004-09-23 2008-01-15 University Of New Brunswick Sensor and magnetic field apparatus suitable for use in for unilateral nuclear magnetic resonance and method for making same
US8237440B2 (en) 2005-09-23 2012-08-07 University Of New Brunswick Magnetic field generator suitable for unilateral nuclear magnetic resonance and method for making same
WO2008061371A1 (en) 2006-11-24 2008-05-29 University Of New Brunswick Compact permanent magnet array suitable for producing a remote magnetic field and process suitable for producing the same
RU2504794C2 (en) * 2008-07-11 2014-01-20 Конинклейке Филипс Электроникс Н.В. Digital amplifier with control using direct and feedback links
US9692391B2 (en) 2013-08-06 2017-06-27 Linear Research Associates, Inc. Adjustable compensation ratio feedback system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4437053A (en) * 1982-05-10 1984-03-13 Diasonics (Nmr) Inc. Gradient power supply
US4585995A (en) * 1984-04-19 1986-04-29 Technicare Corporation Nuclear magnetic resonance eddy field suppression apparatus
US4761612A (en) * 1985-07-25 1988-08-02 Picker International, Inc. Programmable eddy current correction
US4928063A (en) * 1987-11-09 1990-05-22 Picker International, Inc. Automatic eddy current correction
NL8802212A (en) * 1988-09-08 1990-04-02 Philips Nv METHOD AND APPARATUS FOR WHIRL FLOW COMPENSATION IN MR DEVICES.
DE4020213C2 (en) * 1990-06-25 1993-10-07 Siemens Ag Power supply for a gradient coil of a nuclear magnetic resonance imaging system
DE59108295D1 (en) * 1990-09-20 1996-11-28 Siemens Ag MRI scanner

Also Published As

Publication number Publication date
GB9200812D0 (en) 1992-03-11
EP0621955A1 (en) 1994-11-02
JPH07502671A (en) 1995-03-23
WO1993014414A1 (en) 1993-07-22

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