[go: up one dir, main page]

GB1074587A - Improvements relating to magnet assemblies - Google Patents

Improvements relating to magnet assemblies

Info

Publication number
GB1074587A
GB1074587A GB14882/63A GB1488263A GB1074587A GB 1074587 A GB1074587 A GB 1074587A GB 14882/63 A GB14882/63 A GB 14882/63A GB 1488263 A GB1488263 A GB 1488263A GB 1074587 A GB1074587 A GB 1074587A
Authority
GB
United Kingdom
Prior art keywords
magnets
april
improvements relating
magnet assemblies
polepieces
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
GB14882/63A
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 GB14882/63A priority Critical patent/GB1074587A/en
Priority to DEP34033A priority patent/DE1296285B/en
Priority to CH478164A priority patent/CH431741A/en
Priority to FR8030A priority patent/FR1390763A/en
Priority to US360366A priority patent/US3250961A/en
Publication of GB1074587A publication Critical patent/GB1074587A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/02—Details
    • H01J37/04—Arrangements of electrodes and associated parts for generating or controlling the discharge, e.g. electron-optical arrangement or ion-optical arrangement
    • H01J37/10—Lenses
    • H01J37/14—Lenses magnetic
    • H01J37/143—Permanent magnetic lenses
    • 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
    • H01F7/0284—Magnetic circuits with PM for magnetic field generation for generating uniform fields, focusing, deflecting electrically charged particles using a trimmable or adjustable magnetic circuit, e.g. for a symmetric dipole or quadrupole magnetic field

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Microwave Tubes (AREA)

Abstract

1,074,587. Permanent magnets. PERKINELMER Ltd. April 13, 1964 [April 16, 1963], No. 14882/63. Heading H1P. In a permanent magnet field assembly for nuclear magnetic resonance spectrometers, the magnets 1 have pole-pieces 4 spaced slightly from their ends by supporting tubes 7 attached either to the housing or the magnets and having a coefficient of thermal expansion such as to maintain the flux in the working gap substantially independent of temperature. Axial position of the polepieces is adjusted by screw controlled wedges 11, 12, and the transverse position by screws 13.
GB14882/63A 1963-04-16 1963-04-16 Improvements relating to magnet assemblies Expired GB1074587A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB14882/63A GB1074587A (en) 1963-04-16 1963-04-16 Improvements relating to magnet assemblies
DEP34033A DE1296285B (en) 1963-04-16 1964-04-11 Permanent magnet arrangement with temperature compensation
CH478164A CH431741A (en) 1963-04-16 1964-04-13 Permanent magnet arrangement
FR8030A FR1390763A (en) 1963-04-16 1964-04-15 Permanent magnet device
US360366A US3250961A (en) 1963-04-16 1964-04-16 Magnet assembly having thermal means to adjust the field strength thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB14882/63A GB1074587A (en) 1963-04-16 1963-04-16 Improvements relating to magnet assemblies

Publications (1)

Publication Number Publication Date
GB1074587A true GB1074587A (en) 1967-07-05

Family

ID=10049193

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14882/63A Expired GB1074587A (en) 1963-04-16 1963-04-16 Improvements relating to magnet assemblies

Country Status (5)

Country Link
US (1) US3250961A (en)
CH (1) CH431741A (en)
DE (1) DE1296285B (en)
FR (1) FR1390763A (en)
GB (1) GB1074587A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3007590A1 (en) * 1979-02-28 1980-09-04 Tokyo Shibaura Electric Co MAGNETIC UNIT
US4338545A (en) * 1979-02-28 1982-07-06 Tokyo Shibaura Denki Kabushiki Kaisha Magnetron unit with a magnetic field adjusting means

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3390386A (en) * 1965-02-23 1968-06-25 Leeds & Northrup Co Span trimming adjustment and temperature compensation for a transmitter of the force balance type
US3437963A (en) * 1967-06-12 1969-04-08 Varian Associates Permanent magnet having an enclosing yoke structure with pole aligning means
FR2531564B1 (en) * 1982-08-03 1986-07-18 Aimants Ugimag Sa PERMANENT MAGNET COMPOSITE IN DIFFERENT MAGNETIC MATERIALS WITH ADJUSTED THERMAL VARIATION OF INDUCTION
US4506240A (en) * 1982-09-01 1985-03-19 Tektronix, Inc. Magnet assembly for a YIG tuned filter having adjustment means to elastically strain a pole piece
US8454056B2 (en) 2011-07-28 2013-06-04 Senior Investments Gmbh Double strap coupling apparatus
US20140248679A1 (en) * 2013-03-02 2014-09-04 Jing Zhang Apparatus and Methods to Enhance Field Gradient For Magnetic Rare Cell Separation

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1036415B (en) * 1954-12-24 1958-08-14 Max Baermann Device for the compensation of temperature influences on permanent magnets
US3009084A (en) * 1956-09-14 1961-11-14 Taylor Instrument Co Electromechanical transducer
US3182231A (en) * 1960-09-26 1965-05-04 Varian Associates Magnet pole cap construction
GB949071A (en) * 1961-05-02 1964-02-12 Ass Elect Ind Improvements relating to magnet assemblies

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3007590A1 (en) * 1979-02-28 1980-09-04 Tokyo Shibaura Electric Co MAGNETIC UNIT
GB2044990A (en) * 1979-02-28 1980-10-22 Tokyo Shibaura Electric Co Magnetron with thermally compensated magnetic system
US4338545A (en) * 1979-02-28 1982-07-06 Tokyo Shibaura Denki Kabushiki Kaisha Magnetron unit with a magnetic field adjusting means
DE3007590C2 (en) * 1979-02-28 1985-07-25 Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa Magnetron unit

Also Published As

Publication number Publication date
US3250961A (en) 1966-05-10
DE1296285B (en) 1969-05-29
CH431741A (en) 1967-03-15
FR1390763A (en) 1965-02-26

Similar Documents

Publication Publication Date Title
GB504802A (en) Improvements in or relating to permanent magnet devices for producing axially symmetrical magnetic fields
GB515308A (en) Improvements in or relating to magnetic electron lenses
GB1139112A (en) Magnet structure
GB1074587A (en) Improvements relating to magnet assemblies
GB1110172A (en) Improvements in or relating to magnet structures
GB1314197A (en) Dual output ac transducer
GB977270A (en) Improvements in and relating to apparatus for producing magnetic fields
GB1258453A (en)
US3325757A (en) Negative temperature coefficient means for a magnet structure
GB1058388A (en) Adjustable magnets
GB2022359A (en) Geophone with shaped magnetic field
GB1095915A (en) Improvements in or relating to flowmeters
GB1159081A (en) A Magnetic System for a Moving-Coil Transducer.
GB840950A (en) Linear rate generator
GB1049920A (en) High frequency electron discharge device having improved permanent magnetic focusing
GB938022A (en) Ionic pump
GB993626A (en) Improvements in and relating to nuclear magnetic resonance magnets
GB1102719A (en) Improvements in or relating to electron beam periodic magnetic focussing systems
GB909163A (en) Improvements in or relating to hall voltage generators
GB826822A (en) Improvements in or relating to magnet systems for magnetrons
GB1103377A (en) Improvements in or relating to electromagnets
GB1257244A (en)
GB1020558A (en) Improvements in or relating to permanent magnet systems for electron-beam tubes
GB982827A (en) Permanent magnet periodic focusing structures for travelling wave tubes
GB835029A (en) Improvements in or relating to magnetic flux guides and travelling-wave tube arrangements