Title:
MAGNETIC MICRO ENCODER AND MICRO MOTOR
Document Type and Number:
WIPO Patent Application WO/2003/016829
Kind Code:
A1
Abstract:
A magnetic micro encoder (1), comprising a magnetic disk (4) magnetized in axial direction, a first back yoke (5) installed on the magnetic disk (4), two magnetic sensors (6) installed on the sensor mounting part of a flexible printed circuit board (7) so as to be disposed opposedly to the magnetic disk (4) through a gap in the axial direction of the magnetic disk (4) and so that the longitudinal direction thereof is generally parallel with the band−like wiring part of the flexible printed circuit board (7), a second back yoke (8) installed on the rear surfaces of the magnetic sensors (6) through the flexible printed circuit board (7) and forming a magnetic circuit in combination with the first back yoke (5) and the magnetic disk (4), and a housing (3) for storing the first back yoke (5), the magnetic disk (4), the magnetic sensor (6), and the second back yoke (8).
More Like This:
| WO/2023/228949 | ABSOLUTE ENCODER |
| WO/1998/052048 | GEARED MEASURING DEVICE, ESPECIALLY FOR A TACHOMETER OR A REVOLUTION COUNTER |
Inventors:
NAKAMURA KAZUYA (JP)
SAKURAI SHINICHI (JP)
ONODERA HUMITO (JP)
ODAGIRI KINYA (JP)
SHIMIZU YUKIHARU (JP)
SAKURAI SHINICHI (JP)
ONODERA HUMITO (JP)
ODAGIRI KINYA (JP)
SHIMIZU YUKIHARU (JP)
Application Number:
PCT/JP2002/008018
Publication Date:
February 27, 2003
Filing Date:
August 06, 2002
Export Citation:
Assignee:
NAMIKI PRECISION JEWEL CO LTD (JP)
NAKAMURA KAZUYA (JP)
SAKURAI SHINICHI (JP)
ONODERA HUMITO (JP)
ODAGIRI KINYA (JP)
SHIMIZU YUKIHARU (JP)
NAKAMURA KAZUYA (JP)
SAKURAI SHINICHI (JP)
ONODERA HUMITO (JP)
ODAGIRI KINYA (JP)
SHIMIZU YUKIHARU (JP)
International Classes:
G01D5/04; G01D5/14; G01D5/16; G01D5/245; (IPC1-7): G01D5/245
Foreign References:
| JP2001033276A | 2001-02-09 | |||
| JPH07218517A | 1995-08-18 | |||
| JP2001016815A | 2001-01-19 | |||
| JPH06221869A | 1994-08-12 | |||
| JPS5793810U | 1982-06-09 |
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