JPS643579A - Magnetic shielding body - Google Patents

Magnetic shielding body

Info

Publication number
JPS643579A
JPS643579A JP62159992A JP15999287A JPS643579A JP S643579 A JPS643579 A JP S643579A JP 62159992 A JP62159992 A JP 62159992A JP 15999287 A JP15999287 A JP 15999287A JP S643579 A JPS643579 A JP S643579A
Authority
JP
Japan
Prior art keywords
helmet
dies
shell
internally
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
JP62159992A
Other languages
Japanese (ja)
Inventor
Yasuhiko Nakayama
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP62159992A priority Critical patent/JPS643579A/en
Publication of JPS643579A publication Critical patent/JPS643579A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measuring Magnetic Variables (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)

Abstract

PURPOSE:To completely shut off incoming noise magnetic fields so that measurement with good accuracy can be made by consisting a titled body of a shell which has internally a space capable of enclosing an object to be examined and is engaged dividably to two parts and constituting the shell of a superconducting material. CONSTITUTION:A helmet 2 which is the shell to cover the outside of a head part 1 is constituted of the superconducting material. This helmet 2 has internally the space capable of sufficiently enveloping the head part 2 and is provided with at least a piece of skid sensor. A slight magnetic field is detected by using this skid sensor without being affected by the external magnetic fields. The material constituting the helmet 2 is formed by preparing the powdery superconductor of, for example, a Y-Ba-Sr-Cu-O system, adding an aq. soln. dissolved with a slight amt. of PVA, kneading the ceramics to an easily pressable state, putting the mixture into press dies of a helmet shape and molding the same. The dies are so designed that the dies are divided to two parts and steps 31 and 32 of ruggedness do not create a part where the external magnetic field leaks when the dies are butted to each other. As the result, a costly magnetic shielding room is not necessitated.
JP62159992A 1987-06-26 1987-06-26 Magnetic shielding body Pending JPS643579A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62159992A JPS643579A (en) 1987-06-26 1987-06-26 Magnetic shielding body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62159992A JPS643579A (en) 1987-06-26 1987-06-26 Magnetic shielding body

Publications (1)

Publication Number Publication Date
JPS643579A true JPS643579A (en) 1989-01-09

Family

ID=15705636

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62159992A Pending JPS643579A (en) 1987-06-26 1987-06-26 Magnetic shielding body

Country Status (1)

Country Link
JP (1) JPS643579A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4998593A (en) * 1989-03-31 1991-03-12 Aisin Seiki Kabushiki Kaisha Steering and brake controlling system
JP2012152515A (en) * 2011-01-28 2012-08-16 Konica Minolta Holdings Inc Magnetism sensor and biomagnetism measurement apparatus using the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4998593A (en) * 1989-03-31 1991-03-12 Aisin Seiki Kabushiki Kaisha Steering and brake controlling system
JP2012152515A (en) * 2011-01-28 2012-08-16 Konica Minolta Holdings Inc Magnetism sensor and biomagnetism measurement apparatus using the same

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