Title:
INFINITESIMAL POSITION CHANGE QUANTITY DETECTOR
Document Type and Number:
Japanese Patent JP2964062
Kind Code:
B2
Abstract:
PURPOSE: To provide an infinitesimal position change quantity detector capable of detecting the position change quantity as a signal having a large good S-N ratio, easy to set the positions of component parts, and capable of obtaining a sufficient output even when they are somewhat displaced by utilizing the characteristic of ferromagnetic magnetic resistance elements, i.e., the effect that the resistance change rate for the magnetic field is large.
CONSTITUTION: A magnet 15 is fitted to an object 11 to be displaced. A soft magnetic substance 19 serving as a magnetic guide path is fitted on a substrate 17 arranged apart from the magnet 15 by a prescribed distance at a position directly above the magnet 15. Magnetic resistance elements 21, 23 of which resistance values change in response to the direction and intensity of the magnetic field generated by the magnet 15, are fitted on both the right and left sides of the soft magnetic substance 19.
Inventors:
ITO HARUO
FUKUDA NAOKI
MYAMOTO SADAO
FUKUDA NAOKI
MYAMOTO SADAO
Application Number:
JP23236194A
Publication Date:
October 18, 1999
Filing Date:
August 31, 1994
Export Citation:
Assignee:
TEIKOKU TSUSHIN KOGYO KK
International Classes:
G01B7/00; G01D5/18; H01L43/08; (IPC1-7): G01B7/00; G01D5/18; H01L43/08
Domestic Patent References:
| JP57030A |
Attorney, Agent or Firm:
Takashi Kumagai (1 outside)
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