JPS643328B2 - - Google Patents

Info

Publication number
JPS643328B2
JPS643328B2 JP55087597A JP8759780A JPS643328B2 JP S643328 B2 JPS643328 B2 JP S643328B2 JP 55087597 A JP55087597 A JP 55087597A JP 8759780 A JP8759780 A JP 8759780A JP S643328 B2 JPS643328 B2 JP S643328B2
Authority
JP
Japan
Prior art keywords
magnetic
magnetic field
sign
ferrite powder
solid body
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.)
Expired
Application number
JP55087597A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5713712A (en
Inventor
Fumio Yamauchi
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.)
NEC Corp
Shingijutsu Kaihatsu Jigyodan
Original Assignee
Shingijutsu Kaihatsu Jigyodan
Nippon Electric 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 Shingijutsu Kaihatsu Jigyodan, Nippon Electric Co Ltd filed Critical Shingijutsu Kaihatsu Jigyodan
Priority to JP8759780A priority Critical patent/JPS5713712A/ja
Publication of JPS5713712A publication Critical patent/JPS5713712A/ja
Publication of JPS643328B2 publication Critical patent/JPS643328B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
    • H01F41/16—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates the magnetic material being applied in the form of particles, e.g. by serigraphy, to form thick magnetic films or precursors therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0205—Magnetic circuits with PM in general
    • H01F7/021—Construction of PM

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
JP8759780A 1980-06-27 1980-06-27 Magnetic mark unit Granted JPS5713712A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8759780A JPS5713712A (en) 1980-06-27 1980-06-27 Magnetic mark unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8759780A JPS5713712A (en) 1980-06-27 1980-06-27 Magnetic mark unit

Publications (2)

Publication Number Publication Date
JPS5713712A JPS5713712A (en) 1982-01-23
JPS643328B2 true JPS643328B2 (2) 1989-01-20

Family

ID=13919396

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8759780A Granted JPS5713712A (en) 1980-06-27 1980-06-27 Magnetic mark unit

Country Status (1)

Country Link
JP (1) JPS5713712A (2)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6447809U (2) * 1987-09-17 1989-03-24
JPH02291003A (ja) * 1989-04-28 1990-11-30 Nippon Road Co Ltd:The 道路構造とこれにより誘導される道路維持機械

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5436100U (2) * 1977-08-17 1979-03-09
JPS5461956A (en) * 1977-10-27 1979-05-18 Nec Corp Magnetic induction marker

Also Published As

Publication number Publication date
JPS5713712A (en) 1982-01-23

Similar Documents

Publication Publication Date Title
US11356822B2 (en) Driving assistance system
US5323856A (en) Detecting system and method for oil or gas well
US6411084B1 (en) Magnetically activated well tool
ATE368845T1 (de) Kreisförmig magnetisierter scheibenförmiger drehmomentwandler und verfahren zur messung des drehmomentes mit dem wandler
US5670877A (en) Shaft rotation sensor with magnetic sensors angularly spaced apart with respect to a magnetic source
CA1287387C (en) Magnetic freepoint sensor utilizing spaced hall effect devices
CN102741661A (zh) 磁式位置检测装置
JPS643328B2 (2)
US20080150521A1 (en) Detector
AU2006221761B2 (en) Low temperature squid transient electromagnetic receiver system
Xu et al. Magnetic sensing system design for intelligent vehicle guidance
JP2000009849A (ja) 埋設ケーブル探査装置及び探査方法
US3007109A (en) Apparatus for detecting casing joints
CN217424262U (zh) 一种绝对式磁致伸缩位移测量磁盒
EP0120260A3 (de) Magnetfeldsensor und einen Magnetfeldsensor enthaltender Positionssensor
CA2489171A1 (en) Method and apparatus for sensing permanent state deviations
US2414128A (en) Compass transmitter
JPS58142203A (ja) 磁性体検出装置
KR200314113Y1 (ko) 물체감지용 써치코일
US6609663B1 (en) Marking device
JPH026385Y2 (2)
KR100368299B1 (ko) 비선형성 자기 센서의 제조방법
JPH0833299B2 (ja) 車両用方位計
JPS5816285A (ja) 磁石セメントを利用した情報の表示方法
JPH0130197B2 (2)