JPS5779410A - Coaxial magnetic scale - Google Patents

Coaxial magnetic scale

Info

Publication number
JPS5779410A
JPS5779410A JP15515980A JP15515980A JPS5779410A JP S5779410 A JPS5779410 A JP S5779410A JP 15515980 A JP15515980 A JP 15515980A JP 15515980 A JP15515980 A JP 15515980A JP S5779410 A JPS5779410 A JP S5779410A
Authority
JP
Japan
Prior art keywords
magnetic
scale
magnetization
grid
main 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.)
Pending
Application number
JP15515980A
Other languages
Japanese (ja)
Inventor
Hiroyuki 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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP15515980A priority Critical patent/JPS5779410A/en
Publication of JPS5779410A publication Critical patent/JPS5779410A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

PURPOSE:To obtain a coaxial magnetic scale having an intensive signal magnetic field and a thermal/heat expansion coefficient approximate to iron, by applying the magnetization in the direction orthogonal to the axial length direction of the scale main body to the outer circumference layer of the said magnetic scale. CONSTITUTION:A scale main body 10 is formed into a cylindrical shape with a spinodal type magnetic material such as an Fe-Co-Cr group alloy, or a magnetic material showing the isotropic magnetic anisotropy such as an Fe-Co-V group alloy magnetic material. The magnetization is applied to a magnetic recording medium 1 in the direction orthogonal to the axial length direction of the main body 10, and a magnetic grid Hs is formed along a prescribed length of axis. The magnetization to form the grid Hs is applied in the opposite direction to each of the adjacent regions to each other in the axial length direction of the medium 1. The grid Hs can also be formed at a part in the circumference direction of the medium 1.
JP15515980A 1980-11-06 1980-11-06 Coaxial magnetic scale Pending JPS5779410A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15515980A JPS5779410A (en) 1980-11-06 1980-11-06 Coaxial magnetic scale

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15515980A JPS5779410A (en) 1980-11-06 1980-11-06 Coaxial magnetic scale

Related Child Applications (2)

Application Number Title Priority Date Filing Date
JP16620185A Division JPS6156904A (en) 1985-07-27 1985-07-27 Coaxial type magnetic scale
JP16620085A Division JPS6156903A (en) 1985-07-27 1985-07-27 Magnetic scale

Publications (1)

Publication Number Publication Date
JPS5779410A true JPS5779410A (en) 1982-05-18

Family

ID=15599808

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15515980A Pending JPS5779410A (en) 1980-11-06 1980-11-06 Coaxial magnetic scale

Country Status (1)

Country Link
JP (1) JPS5779410A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6156904A (en) * 1985-07-27 1986-03-22 Sony Magnescale Inc Coaxial type magnetic scale
JPH0490915U (en) * 1990-12-20 1992-08-07
JPH0490914U (en) * 1990-12-20 1992-08-07
US5451870A (en) * 1991-08-12 1995-09-19 August Bilstein Gmbh & Co. Kg Sensor for measuring the difference between the velocity of a cylinder and a piston in a dashpot
US5606256A (en) * 1992-06-08 1997-02-25 Nippon Thompson Co., Ltd. Linear encoder and a guide unit on which it is equipped

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5448575A (en) * 1977-09-26 1979-04-17 Sony Corp Magnetic head

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5448575A (en) * 1977-09-26 1979-04-17 Sony Corp Magnetic head

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6156904A (en) * 1985-07-27 1986-03-22 Sony Magnescale Inc Coaxial type magnetic scale
JPH0490915U (en) * 1990-12-20 1992-08-07
JPH0490914U (en) * 1990-12-20 1992-08-07
US5451870A (en) * 1991-08-12 1995-09-19 August Bilstein Gmbh & Co. Kg Sensor for measuring the difference between the velocity of a cylinder and a piston in a dashpot
US5606256A (en) * 1992-06-08 1997-02-25 Nippon Thompson Co., Ltd. Linear encoder and a guide unit on which it is equipped

Similar Documents

Publication Publication Date Title
JPS57195329A (en) Magnetic recording medium
KR840003877A (en) Magnetic head
JPS6474708A (en) Low temperature vessel for superconducting magnet
JPS5794948A (en) Photomagnetic recording medium
NL186348C (en) MAGNETIC RECORD MEDIUM WITH IMPROVED ANTISTATIC PROPERTIES AND METHOD OF MANUFACTURING THESE.
JPS5778628A (en) Manufacture of magnetic recording medium
Kelarev et al. A Neutron-Diffraction Study of the Temperature Dependence of the Magnetization of the Sublattices in the Compound TbCo 5. 1
JPS5616939A (en) Magnetic recording medium
EP0196332A4 (en) Method of manufacturing photothermomagnetic recording film.
Adamyan et al. The Temperature Dependence of the Magnetic Susceptibility, Magnetisation, and Electrical Resistance of the System of Solid Solutions GdZn sub x Mg sub 1--x
JPS5548906A (en) Anisotropic permanent magnet
JPS531506A (en) Plastic film for electrical purpose
Medvedeva Pressure Effect on Phase Transition Temperature in MnCoSi
JPS5447616A (en) Amorphous alloy magnetic head core
Jingfors Home range affinity in a recently established muskox herd in arctic Alaska.
Kupriyanov et al. The Magnetic Properties of Gadolinium--Yttrium--Iron Intermetallic Compounds of the Gd sub xYt sub 1-x cc Fe sub 3 Type
JPS57172523A (en) Magnetic head device
JPS51148407A (en) Magnetic recording medium
Dekhtjar et al. STUDIES IN NATURE OF FeRh ALLOY MAGNETIC TRANSFORMATION BY THE POSITRON ANNIHILATION
JPS6417411A (en) Magnetic thin film
DUNCAN Fundamental magnetic behavior of ultra-thin epitaxial iron films[Ph. D. Thesis]
JPS61116753U (en)
Gyorgy Magnetic Properties.(Retroactive Coverage)
JPS5570101A (en) Microwave ferrite element
JPS5673413A (en) Magnetic recording medium