Magnetic encoder for reading marks on an associated magnetic tra

Details Magnetic encoder for reading marks on an associated magnetic tra Magnetic encoder for reading marks on an associated magnetic tra

1995-12-01

1998-10-13

Hajec, Donald T.

Registers

Coded record sensors

Particular sensor structure

235440, G06K 708

Patent

active

058215174

ABSTRACT:
The encoder has at least one magnetoresistor (120, 220, 320, 322, 324, 326) and the magnetic support has a succession of magnetized regions (242, 342, 442), characterized in that the magnetic encoder also has a flux guide (154, 254, 354, 454), which has reading pole pieces (256, 256', 356) separated by at least one air gap (252, 352, 452) having a length (g) less than the smallest spacing of the magnetized regions.

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Journal of Applied Physics, vol. 69, No. 8, Part IIB, Apr. 15, 1991, New York, pp. 5408-5410, XP 000240935, Mountfield et al, "Modeling of horizontal magnetoresistive recording heads".
IEEE Translation Journal on Magnetics in Japan, vol. 7, No. 9, Sep. 1992, New York, pp. 705-713, XP 000348906, Ikeda et al, "MR Sensor for Magnetic Encoder".

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