Title:
COATING-TYPE MAGNETIC RECORDING BODY AND MAGNETIC ENCODER
Document Type and Number:
Japanese Patent JPH04113222
Kind Code:
A
Abstract:
PURPOSE:To enlarge spacing fro generating a magnetic sensor maximum output signal by constituting a magnetic recording medium with a magnetic film which is formed by a magnetic paint using Ba ferrite magnetic powder. CONSTITUTION:In a coating-type magnetic recording body, a film-shaped magnetic recording body is formed by a magnetic paint using Ba ferrite magnetic powder on a non-magnetic substrate. It is desirable to use a filling quantity of Ba ferrite magnetic powder of 35-65vol.% as the magnetic paint and to use a binder resin for the remaining part. Increasing content of Ba ferrite magnetic powder within the medium achieves a recording medium with magnetism- reducing characteristics and enables a magnetization pitch lambda and a film thickness d to be selected, thus constantly obtaining a larger magnetomotive force than that of a recording medium using Co-gamma-Fe2O3 regardless of any slant angle of operating line.
Inventors:
YOSHIMURA KUNIAKI
Application Number:
JP23411890A
Publication Date:
April 14, 1992
Filing Date:
September 04, 1990
Export Citation:
Assignee:
HITACHI METALS LTD
International Classes:
G01B7/00; G01D5/12; G01D5/245; G01P3/487; G11B5/706; (IPC1-7): G01B7/00; G01D5/245
Attorney, Agent or Firm:
Yamato Tsutsui (2 outside)