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GB1084542A - Magnets with high-homogeneity working gap - Google Patents

Magnets with high-homogeneity working gap

Info

Publication number
GB1084542A
GB1084542A GB12846/63A GB1284663A GB1084542A GB 1084542 A GB1084542 A GB 1084542A GB 12846/63 A GB12846/63 A GB 12846/63A GB 1284663 A GB1284663 A GB 1284663A GB 1084542 A GB1084542 A GB 1084542A
Authority
GB
United Kingdom
Prior art keywords
gap
working gap
polepiece
annular part
magnets
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
Application number
GB12846/63A
Inventor
Leslie Kearton Parker
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.)
PerkinElmer Ltd
Original Assignee
PerkinElmer 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 PerkinElmer Ltd filed Critical PerkinElmer Ltd
Priority to GB12846/63A priority Critical patent/GB1084542A/en
Priority to DE19641489202 priority patent/DE1489202A1/en
Priority to CH407064A priority patent/CH440454A/en
Priority to US356375A priority patent/US3253194A/en
Priority to FR8013A priority patent/FR1386925A/en
Publication of GB1084542A publication Critical patent/GB1084542A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/20—Electromagnets; Actuators including electromagnets without armatures
    • H01F7/202—Electromagnets for high magnetic field strength
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0273—Magnetic circuits with PM for magnetic field generation
    • H01F7/0278—Magnetic circuits with PM for magnetic field generation for generating uniform fields, focusing, deflecting electrically charged particles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/20—Electromagnets; Actuators including electromagnets without armatures

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)

Abstract

1,084,542. Permanent magnets. PERKINELMER Ltd. March 25, 1964 [April 1, 1963], No. 12846/63. Heading H1P. In a magnet, e.g. permanent for providing a highly homogeneous flux distribution in a working gap, the gap is defined by opposed faces of two high-permeability inserts 4 each embedded in a polepiece 2 and so supportedly spaced therein as to define a single intervening high reluctance series gap which includes an inner portion 5 substantially normal to the magnetic axis through the working gap and an outer portion 6 extending at an angle from the inner portion 5 between the outer boundary of the insert 4 and an annular part 3 of the polepiece, the two series gap portions being of different width. The insert support is effected by a non magnetic, e.g. epoxy resin, layer, and the annular part 3 is a screw ring which is adjustable to alter the spacing between the two such rings and, in the embodiment shown, the width of the gap outer portion 6.
GB12846/63A 1963-04-01 1963-04-01 Magnets with high-homogeneity working gap Expired GB1084542A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB12846/63A GB1084542A (en) 1963-04-01 1963-04-01 Magnets with high-homogeneity working gap
DE19641489202 DE1489202A1 (en) 1963-04-01 1964-03-31 Magnet arrangement
CH407064A CH440454A (en) 1963-04-01 1964-03-31 Magnet with a pair of pole pieces
US356375A US3253194A (en) 1963-04-01 1964-04-01 Magnet assemblies
FR8013A FR1386925A (en) 1963-04-01 1964-04-01 Permanent magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB12846/63A GB1084542A (en) 1963-04-01 1963-04-01 Magnets with high-homogeneity working gap

Publications (1)

Publication Number Publication Date
GB1084542A true GB1084542A (en) 1967-09-27

Family

ID=10012203

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12846/63A Expired GB1084542A (en) 1963-04-01 1963-04-01 Magnets with high-homogeneity working gap

Country Status (5)

Country Link
US (1) US3253194A (en)
CH (1) CH440454A (en)
DE (1) DE1489202A1 (en)
FR (1) FR1386925A (en)
GB (1) GB1084542A (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH438490A (en) * 1966-02-15 1967-06-30 Oerlikon Maschf Device for stepless correction of the edge field of a magnet
US3611223A (en) * 1968-09-11 1971-10-05 Hitachi Ltd Magnetic apparatus for producing homogeneous field
US4187444A (en) * 1978-01-19 1980-02-05 Varian Associates, Inc. Open-circuit magnet structure for cross-field tubes and the like
US4707663A (en) * 1985-08-15 1987-11-17 Fonar Corporation Nuclear magnetic resonance apparatus using low energy magnetic elements
US4766378A (en) * 1986-11-28 1988-08-23 Fonar Corporation Nuclear magnetic resonance scanners
JPS63241905A (en) * 1987-03-27 1988-10-07 Sumitomo Special Metals Co Ltd Magnetic field generating equipment
US4980593A (en) * 1989-03-02 1990-12-25 The Balbec Corporation Direct current dynamoelectric machines utilizing high-strength permanent magnets
DE59406586D1 (en) * 1993-03-15 1998-09-10 Siemens Ag Homogeneous field magnet with pole plate devices of its pole shoes spaced via correction air gaps
JPH0831635A (en) * 1994-07-08 1996-02-02 Sumitomo Special Metals Co Ltd Mri magnetic field generating device
US5945901A (en) * 1997-02-05 1999-08-31 Ullman Devices Corporation Magnetic head for magnetic pick-up tool
US6392517B1 (en) 2000-11-07 2002-05-21 Ullman Devices Magnetic retrieval tool with increased flux
US7065839B2 (en) * 2001-10-23 2006-06-27 Just George J Magnetic bookmark utilizing built-in fulcrum and levers
US20080187393A1 (en) * 2007-02-02 2008-08-07 John Nellessen Magnetic joint
AU2017214764B2 (en) * 2016-02-03 2022-03-17 Adaptas Solutions Pty Ltd Apparatus and methods for controlling a charged particle in a magnetic field
US11075027B1 (en) 2018-07-03 2021-07-27 Q Magnetics, LLC Permanent magnet for generating homogenous and intense magnetic field

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1234874B (en) * 1955-07-22 1967-02-23 Perkin Elmer Corp Device for generating a homogeneous magnetic field
US3018422A (en) * 1959-11-16 1962-01-23 Norman T Seaton Variable-field permanent magnet
US3182231A (en) * 1960-09-26 1965-05-04 Varian Associates Magnet pole cap construction
US3175131A (en) * 1961-02-08 1965-03-23 Richard J Burleigh Magnet construction for a variable energy cyclotron

Also Published As

Publication number Publication date
FR1386925A (en) 1965-01-22
US3253194A (en) 1966-05-24
DE1489202A1 (en) 1969-06-04
CH440454A (en) 1967-07-31

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