GB901911A - Improvements in or relating to methods of detecting the presence of inhomogeneities in magnetic fields - Google Patents

Improvements in or relating to methods of detecting the presence of inhomogeneities in magnetic fields

Info

Publication number
GB901911A
GB901911A GB693259A GB693259A GB901911A GB 901911 A GB901911 A GB 901911A GB 693259 A GB693259 A GB 693259A GB 693259 A GB693259 A GB 693259A GB 901911 A GB901911 A GB 901911A
Authority
GB
United Kingdom
Prior art keywords
screen
bore
inhomogeneities
feb
magnet
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
GB693259A
Inventor
Robert Gibson Robertshaw
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB693259A priority Critical patent/GB901911A/en
Publication of GB901911A publication Critical patent/GB901911A/en
Expired 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
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/0213—Measuring direction or magnitude of magnetic fields or magnetic flux using deviation of charged particles by the magnetic field

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Magnetic Variables (AREA)

Abstract

901,911. Magnetic tests. GENERAL ELECTRIC CO. Ltd. Feb. 29, 1960 [Feb. 27, 1959], No. 6932/59. Class 37. [Also in Group XL (a)] A cathode-ray tube 1 having a substantially flat screen 5 is fitted by non-magnetic rings 7, to slide within a bore in a magnet 3. The tube is short compared with the length of the bore and the spot on the screen is focused by the field, changes of spot shape, dimension or position during movement along the bore indicating an inhomogeneity in the region of the screen. Inhomogeneities may be removed by the application of a local field. In, for example, a long magnet for focusing a long electron beam, which comprises short tubular portions arranged end to end with their axes aligned, the magnetization may be adjusted by rotating portions with respect to one another. The scope of the claim is such as to include movement of a screen relative to a fixed beam.
GB693259A 1959-02-27 1959-02-27 Improvements in or relating to methods of detecting the presence of inhomogeneities in magnetic fields Expired GB901911A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB693259A GB901911A (en) 1959-02-27 1959-02-27 Improvements in or relating to methods of detecting the presence of inhomogeneities in magnetic fields

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB693259A GB901911A (en) 1959-02-27 1959-02-27 Improvements in or relating to methods of detecting the presence of inhomogeneities in magnetic fields

Publications (1)

Publication Number Publication Date
GB901911A true GB901911A (en) 1962-07-25

Family

ID=9823486

Family Applications (1)

Application Number Title Priority Date Filing Date
GB693259A Expired GB901911A (en) 1959-02-27 1959-02-27 Improvements in or relating to methods of detecting the presence of inhomogeneities in magnetic fields

Country Status (1)

Country Link
GB (1) GB901911A (en)

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