JPS53125808A - Magnetic body detector - Google Patents

Magnetic body detector

Info

Publication number
JPS53125808A
JPS53125808A JP4037777A JP4037777A JPS53125808A JP S53125808 A JPS53125808 A JP S53125808A JP 4037777 A JP4037777 A JP 4037777A JP 4037777 A JP4037777 A JP 4037777A JP S53125808 A JPS53125808 A JP S53125808A
Authority
JP
Japan
Prior art keywords
magnetic body
body detector
magnetic field
eliminated
detect
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.)
Granted
Application number
JP4037777A
Other languages
Japanese (ja)
Other versions
JPS5834001B2 (en
Inventor
Kenji Maio
Masao Hotta
Masakazu Ejiri
Toshinori Fujioka
Michihiro Mese
Shigeru Shimada
Tsutomu Okubo
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 JP52040377A priority Critical patent/JPS5834001B2/en
Publication of JPS53125808A publication Critical patent/JPS53125808A/en
Publication of JPS5834001B2 publication Critical patent/JPS5834001B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

PURPOSE: To detect only the signal components by taking the difference between the output signals of two magnetic field detectors such that the magnetic field of the outside noises is eliminated.
COPYRIGHT: (C)1978,JPO&Japio
JP52040377A 1977-04-11 1977-04-11 Magnetic detection device for magnetic printed matter Expired JPS5834001B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52040377A JPS5834001B2 (en) 1977-04-11 1977-04-11 Magnetic detection device for magnetic printed matter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52040377A JPS5834001B2 (en) 1977-04-11 1977-04-11 Magnetic detection device for magnetic printed matter

Publications (2)

Publication Number Publication Date
JPS53125808A true JPS53125808A (en) 1978-11-02
JPS5834001B2 JPS5834001B2 (en) 1983-07-23

Family

ID=12578945

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52040377A Expired JPS5834001B2 (en) 1977-04-11 1977-04-11 Magnetic detection device for magnetic printed matter

Country Status (1)

Country Link
JP (1) JPS5834001B2 (en)

Also Published As

Publication number Publication date
JPS5834001B2 (en) 1983-07-23

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