JPS6420467A - Magnetic field measuring instrument - Google Patents

Magnetic field measuring instrument

Info

Publication number
JPS6420467A
JPS6420467A JP17469187A JP17469187A JPS6420467A JP S6420467 A JPS6420467 A JP S6420467A JP 17469187 A JP17469187 A JP 17469187A JP 17469187 A JP17469187 A JP 17469187A JP S6420467 A JPS6420467 A JP S6420467A
Authority
JP
Japan
Prior art keywords
magnetic field
intensity
input
light source
measuring instrument
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
JP17469187A
Other languages
Japanese (ja)
Inventor
Mitsuo Hayashibara
Moriaki Tsukamoto
Naohisa Watabiki
Masanori Chinen
Hisamichi Inoue
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 JP17469187A priority Critical patent/JPS6420467A/en
Publication of JPS6420467A publication Critical patent/JPS6420467A/en
Pending legal-status Critical Current

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  • Measuring Magnetic Variables (AREA)

Abstract

PURPOSE:To measure the intensity of a magnetic field of a wide range from a vibration of a critical magnetic field, by forming a magnetic field measuring instrument by a superconductive element, a photocell, an IED, an optical fiber, and an input light source, and varying continuously the light intensity of the input light source. CONSTITUTION:A light beam which is sent through an optical fiber 1 from a light source is converted to an electric input by a photocell 2. To the electric input, a superconductive element 3 and an LED 4 are connected in parallel. When the intensity of an input beam is varied continuously, it is varied to a normal conducting state at certain current density, therefore, a current flows to the LED 4, and it can be detected that the external magnetic field and the critical magnetic field have become equal. When various cross sections of a superconductor are prepared, the intensity of a magnetic field of a wide range extending from a feeble magnetic field to a high intensity magnetic field can be measured.
JP17469187A 1987-07-15 1987-07-15 Magnetic field measuring instrument Pending JPS6420467A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17469187A JPS6420467A (en) 1987-07-15 1987-07-15 Magnetic field measuring instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17469187A JPS6420467A (en) 1987-07-15 1987-07-15 Magnetic field measuring instrument

Publications (1)

Publication Number Publication Date
JPS6420467A true JPS6420467A (en) 1989-01-24

Family

ID=15982993

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17469187A Pending JPS6420467A (en) 1987-07-15 1987-07-15 Magnetic field measuring instrument

Country Status (1)

Country Link
JP (1) JPS6420467A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007528324A (en) * 2003-02-14 2007-10-11 クウォン リョ，ヒー Container stopper with push-type opening device
JP4767970B2 (en) * 2004-12-09 2011-09-07 ロ・ヘクウォン Container lid and its manufacturing equipment (VESSELCAPANDSYSTEMFORMANUMACTARINGTHEMEME)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007528324A (en) * 2003-02-14 2007-10-11 クウォン リョ，ヒー Container stopper with push-type opening device
JP4767970B2 (en) * 2004-12-09 2011-09-07 ロ・ヘクウォン Container lid and its manufacturing equipment (VESSELCAPANDSYSTEMFORMANUMACTARINGTHEMEME)

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