Position detector device

Details Position detector device Position detector device

1991-10-15

1992-12-01

Pellinen, A. D.

Coded data generation or conversion

Digital pattern reading type converter

Magnetic, inductive or capacitive

32420712, 341119, H03M 122

Patent

active

051682745

ABSTRACT:
A position detector device for detecting the position of a moving object includes a magnetically-recorded section on a moving surface of the moving object where multipoles are magnetized with a wave-length of .lambda., and a magnetic sensor for detecting changes in magnetic field by moving of the magnetically-recorded section. The magnetic sensor is provided with 2.sup.N (N+1, 2, 3, . . . ) pieces of signal detecting magnetic resistance elements connected to constant-current power sources and arranged at an interval of .lambda./2.sup.(N+2). The extent to which the moving object is moved is detected on the basis of electric signals outputted from these signal detecting magnetic resistance elements.

REFERENCES:
patent: 4008432 (1977-02-01), Sugisaki et al.
patent: 4305072 (1981-12-01), Makita

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