CA2223748A1 - Method and system for obtaining higher order gradiometer measurements with lower order gradiometer - Google Patents

Method and system for obtaining higher order gradiometer measurements with lower order gradiometer

Info

Publication number
CA2223748A1
CA2223748A1 CA002223748A CA2223748A CA2223748A1 CA 2223748 A1 CA2223748 A1 CA 2223748A1 CA 002223748 A CA002223748 A CA 002223748A CA 2223748 A CA2223748 A CA 2223748A CA 2223748 A1 CA2223748 A1 CA 2223748A1
Authority
CA
Canada
Prior art keywords
gradiometer
order gradiometer
measurements
higher order
obtaining higher
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.)
Granted
Application number
CA002223748A
Other languages
French (fr)
Other versions
CA2223748C (en
Inventor
Gordon James Haid
Wai Meng Sixtus Lee
Brent Ronald Taylor
Mark Alan Tillotson
Jiri Vrba
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.)
CTF Systems 2001 Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2223748A1 publication Critical patent/CA2223748A1/en
Application granted granted Critical
Publication of CA2223748C publication Critical patent/CA2223748C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/02Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/022Measuring gradient

Abstract

A method and system of obtaining magnetic measurements with a preselected order of sensor gradiometer which are substantially equivalent to those which would be obtained with a sensor gradiometer of a higher order. The system and method employs a reference system comprising a reference tensor gradiometer and appropriate components of a measured tensor are combined with the measurements obtained from the sensor gradiometer to obtain a magnetic measurement substantially equivalent to that which would have been measured by a higher order sensor gradiometer.
CA002223748A 1995-06-07 1996-06-07 Method and system for obtaining higher order gradiometer measurements with lower order gradiometer Expired - Fee Related CA2223748C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/476,290 US5657756A (en) 1995-06-07 1995-06-07 Method and systems for obtaining higher order gradiometer measurements with lower order gradiometers
US08/476,290 1995-06-07
PCT/CA1996/000393 WO1996041209A1 (en) 1995-06-07 1996-06-07 Method and system for obtaining higher order gradiometer measurements with lower order gradiometer

Publications (2)

Publication Number Publication Date
CA2223748A1 true CA2223748A1 (en) 1996-12-19
CA2223748C CA2223748C (en) 2002-09-24

Family

ID=23891258

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002223748A Expired - Fee Related CA2223748C (en) 1995-06-07 1996-06-07 Method and system for obtaining higher order gradiometer measurements with lower order gradiometer

Country Status (7)

Country Link
US (1) US5657756A (en)
EP (1) EP0830612B1 (en)
JP (1) JPH11506198A (en)
AU (1) AU6117296A (en)
CA (1) CA2223748C (en)
DE (1) DE69632583T2 (en)
WO (1) WO1996041209A1 (en)

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US8152839B2 (en) 2005-12-19 2012-04-10 Boston Scientific Scimed, Inc. Embolic coils
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US9427186B2 (en) * 2009-12-04 2016-08-30 Endomagnetics Ltd. Magnetic probe apparatus
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US8970217B1 (en) 2010-04-14 2015-03-03 Hypres, Inc. System and method for noise reduction in magnetic resonance imaging
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Also Published As

Publication number Publication date
DE69632583T2 (en) 2005-06-09
CA2223748C (en) 2002-09-24
EP0830612A1 (en) 1998-03-25
US5657756A (en) 1997-08-19
JPH11506198A (en) 1999-06-02
DE69632583D1 (en) 2004-07-01
EP0830612B1 (en) 2004-05-26
AU6117296A (en) 1996-12-30
WO1996041209A1 (en) 1996-12-19

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Effective date: 20060607