JPS57104208A - Degaussing coil - Google Patents

Degaussing coil

Info

Publication number
JPS57104208A
JPS57104208A JP18048680A JP18048680A JPS57104208A JP S57104208 A JPS57104208 A JP S57104208A JP 18048680 A JP18048680 A JP 18048680A JP 18048680 A JP18048680 A JP 18048680A JP S57104208 A JPS57104208 A JP S57104208A
Authority
JP
Japan
Prior art keywords
coil
bobbin
degaussing
constant
magnetic 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.)
Pending
Application number
JP18048680A
Other languages
Japanese (ja)
Inventor
Akira Fukuoka
Mitsuo Inagaki
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP18048680A priority Critical patent/JPS57104208A/en
Publication of JPS57104208A publication Critical patent/JPS57104208A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F13/00—Apparatus or processes for magnetising or demagnetising

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

PURPOSE:To make continuous degaussing possible by a method wherein a coil winding or a bobbin is shaped so that the strength of a magnetic field is gradually decreased from one end to the other end in the direction of the coil axis and a magnetic component is passed through the coil from its one end to the other end in the decreasing direction of the magnetic field. CONSTITUTION:A degaussing coil 10 is, for example, wound around a bobbin of which the cross section is constant along the coil axis so that the number of turns of the coil winding 12 is gradually reduced from end A to end B. With this structure, when a constant alternating current is applied to the coil winding 12, the distribution of a magnetic field as gradually decreasing from end A to end B along the coil axis line can be obtained. Therefore, degaussing can be continuously implemented by conveying a magnetic component therein from end A to end B. Further, even if a bobbin is of a cone shape instead of a bobbin with the constant cross section and the winding is wound in the constant thickness, a similar effect can be gained.
JP18048680A 1980-12-22 1980-12-22 Degaussing coil Pending JPS57104208A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18048680A JPS57104208A (en) 1980-12-22 1980-12-22 Degaussing coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18048680A JPS57104208A (en) 1980-12-22 1980-12-22 Degaussing coil

Publications (1)

Publication Number Publication Date
JPS57104208A true JPS57104208A (en) 1982-06-29

Family

ID=16084061

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18048680A Pending JPS57104208A (en) 1980-12-22 1980-12-22 Degaussing coil

Country Status (1)

Country Link
JP (1) JPS57104208A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4928081A (en) * 1989-03-13 1990-05-22 The United States Of America As Represented By The Secretary Of The Army Method of mass producing superconducting persistent current rings

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4830094A (en) * 1971-08-25 1973-04-20
JPS4915998A (en) * 1972-06-07 1974-02-12

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4830094A (en) * 1971-08-25 1973-04-20
JPS4915998A (en) * 1972-06-07 1974-02-12

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4928081A (en) * 1989-03-13 1990-05-22 The United States Of America As Represented By The Secretary Of The Army Method of mass producing superconducting persistent current rings

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