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JPS6429783A - Manufacture of closed magnetic circuit - Google Patents

Manufacture of closed magnetic circuit

Info

Publication number
JPS6429783A
JPS6429783A JP62185856A JP18585687A JPS6429783A JP S6429783 A JPS6429783 A JP S6429783A JP 62185856 A JP62185856 A JP 62185856A JP 18585687 A JP18585687 A JP 18585687A JP S6429783 A JPS6429783 A JP S6429783A
Authority
JP
Japan
Prior art keywords
metallic plate
magnetic
coil
search coil
magnetic metallic
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
JP62185856A
Other languages
Japanese (ja)
Inventor
Shinkichi Shimizu
Shigemi Kurashima
Noboru Wakatsuki
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 JP62185856A priority Critical patent/JPS6429783A/en
Publication of JPS6429783A publication Critical patent/JPS6429783A/en
Pending legal-status Critical Current

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  • Measuring Magnetic Variables (AREA)

Abstract

PURPOSE:To obtain a closed magnetic circuit having an excellent linearity and a high performance by moving any one among a drive coil for allowing a magnetic flux to pass through a magnetic metallic plate, and a search coil for detecting the magnetic flux, along the magnetic metallic plate. CONSTITUTION:A drive coil 11 is wound round to the left end part of a magnetic metallic plate 3, and a search coil 12 which can move along the magnetic metallic plate 3 is wound round to the intermediate part of the magnetic metallic plate 3. The drive coil 11 is connected to a power source 13, and a flux meter 14 for integrating a signal which is picked up by the search coil 12 by a law of electromagnetic induction is connected to the search coil 12. Subsequently, the search coil 12 is moved along the magnetic metallic plate 3, a relation between an interval l of the drive coil 11 and the search coil 12 and a magnetic flux for passing through the search coil 12 is derived, and the magnetic metallic plate in which linearity of the relation is below a prescribed value is combined with a magnet.
JP62185856A 1987-07-24 1987-07-24 Manufacture of closed magnetic circuit Pending JPS6429783A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62185856A JPS6429783A (en) 1987-07-24 1987-07-24 Manufacture of closed magnetic circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62185856A JPS6429783A (en) 1987-07-24 1987-07-24 Manufacture of closed magnetic circuit

Publications (1)

Publication Number Publication Date
JPS6429783A true JPS6429783A (en) 1989-01-31

Family

ID=16178075

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62185856A Pending JPS6429783A (en) 1987-07-24 1987-07-24 Manufacture of closed magnetic circuit

Country Status (1)

Country Link
JP (1) JPS6429783A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5187406A (en) * 1990-08-28 1993-02-16 Canon Kabushiki Kaisha Vibration driven motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5187406A (en) * 1990-08-28 1993-02-16 Canon Kabushiki Kaisha Vibration driven motor

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