Position detector including a reference position wherein the sen

Details Position detector including a reference position wherein the sen Position detector including a reference position wherein the sen

1994-02-18

1996-11-12

O'Shea, Sandra L.

Electricity: measuring and testing

Magnetic

Displacement

32420721, 338 32R, G01R 33025, G01B 714, G01B 730

Patent

active

055743641

ABSTRACT:
A position detector which provides improved reference position detecting precision by stabilizing the output signal from magnetoelectric transducers in a reference position part. A rotor has a magnetized surface alternately provided with different magnetic poles and a reference positional part in which magnetic poles provided on the magnetized surface are partly omitted. A rotational angle sensor has MR elements laid out thereon in opposition to the magnetized surface of the rotor to output the voltage signal VS according to the magnetic field intensity in the magnetized surface due to the rotation of the rotor. A waveform processing circuit and a pulse signal processing signal shape the waveform of the voltage signal from the rotational angle sensor, and also generate the rotational angle pulse signal and a reference position pulse signal according to the waveform reforming signal. The reference positional part is arranged so that the magnetic field intensity therein can be within the saturation magnetic field region of the Mr elements.

REFERENCES:
patent: 3949345 (1976-04-01), Makino et al.
patent: 3949346 (1976-04-01), Makino et al.
patent: 4369405 (1983-01-01), Sato et al.
patent: 4401944 (1983-08-01), Narimatsu et al.
patent: 4695795 (1987-09-01), Nakamizo et al.
patent: 4746862 (1988-05-01), Voki
patent: 4866381 (1989-09-01), Tatsuhiko
patent: 4987415 (1991-01-01), Santos et al.
patent: 5270695 (1993-12-01), Wheeler et al.
patent: 5313159 (1994-05-01), Allwine, Jr.
patent: 5351004 (1994-09-01), Daniels et al.

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