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JPS6457700A - Magnetic shielding device - Google Patents

Magnetic shielding device

Info

Publication number
JPS6457700A
JPS6457700A JP62212749A JP21274987A JPS6457700A JP S6457700 A JPS6457700 A JP S6457700A JP 62212749 A JP62212749 A JP 62212749A JP 21274987 A JP21274987 A JP 21274987A JP S6457700 A JPS6457700 A JP S6457700A
Authority
JP
Japan
Prior art keywords
cavity
coolants
interior
filled
effect
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
JP62212749A
Other languages
Japanese (ja)
Inventor
Etsuji Yamamoto
Takeshi Shudo
Hideaki Koizumi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP62212749A priority Critical patent/JPS6457700A/en
Publication of JPS6457700A publication Critical patent/JPS6457700A/en
Pending legal-status Critical Current

Links

Landscapes

  • Details Of Measuring And Other Instruments (AREA)
  • Superconductor Devices And Manufacturing Methods Thereof (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

PURPOSE:To obtain a small-sized, light-weight and simply constituted magnetic shielding device by a method wherein a cavity is provided in the interior of a superconductor and the cavity is filled with coolants. CONSTITUTION:A cavity 2 is provided in the interior of a superconductor 1 and the cavity 2 is filled with coolants. For example, the cavity 2 is formed in the interior of the ceramics superconductive material 1 consisting of Y, Ba, Cu, O and so on and the coolants of liquid nitrogen, cooled nitrogen gas and so on are filled here. The material 1 is shut excepting an aperture 3 and the effect of an external magnetic field is shielded in a space 4 in a container, which is formed of the material 1, by a Meissner effect. Moreover, reversely to that, the material 1 shields the effect of a magnetic field, which is generated by a body 5 put in the space 4 in the container which is formed of the material 1. Or moreover, the surface, which comes into contact to the outside, of the material 1 is covered with such a heat insulating material 6 as a foaming polystyrol or a superinsulator to contrive so as to be able to reduce the consumption of the coolants.
JP62212749A 1987-08-28 1987-08-28 Magnetic shielding device Pending JPS6457700A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62212749A JPS6457700A (en) 1987-08-28 1987-08-28 Magnetic shielding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62212749A JPS6457700A (en) 1987-08-28 1987-08-28 Magnetic shielding device

Publications (1)

Publication Number Publication Date
JPS6457700A true JPS6457700A (en) 1989-03-03

Family

ID=16627784

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62212749A Pending JPS6457700A (en) 1987-08-28 1987-08-28 Magnetic shielding device

Country Status (1)

Country Link
JP (1) JPS6457700A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01245598A (en) * 1988-03-28 1989-09-29 Japan Atom Energy Res Inst High temperature superconductor zero magnetic field standard device
JPH0498899A (en) * 1990-08-17 1992-03-31 Ngk Insulators Ltd Magnetic shielding device
JPH05114796A (en) * 1991-10-22 1993-05-07 Chodendo Sensor Kenkyusho:Kk Magnetic shielding case
JPH09197955A (en) * 1996-01-19 1997-07-31 Idoutai Tsushin Sentan Gijutsu Kenkyusho:Kk Meissner effect confirmation device
US6265723B1 (en) 1997-12-22 2001-07-24 Nec Corporation Magnetic shield apparatus
CN105548933A (en) * 2015-12-10 2016-05-04 清华大学 Resolution detection system of constant magnetic field measuring instrument and time-varying magnetic field shielding device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01245598A (en) * 1988-03-28 1989-09-29 Japan Atom Energy Res Inst High temperature superconductor zero magnetic field standard device
JPH0498899A (en) * 1990-08-17 1992-03-31 Ngk Insulators Ltd Magnetic shielding device
JPH05114796A (en) * 1991-10-22 1993-05-07 Chodendo Sensor Kenkyusho:Kk Magnetic shielding case
JPH09197955A (en) * 1996-01-19 1997-07-31 Idoutai Tsushin Sentan Gijutsu Kenkyusho:Kk Meissner effect confirmation device
US6265723B1 (en) 1997-12-22 2001-07-24 Nec Corporation Magnetic shield apparatus
CN105548933A (en) * 2015-12-10 2016-05-04 清华大学 Resolution detection system of constant magnetic field measuring instrument and time-varying magnetic field shielding device

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