Encoder and method of adjusting magnetic fields of the same

Details Encoder and method of adjusting magnetic fields of the same Encoder and method of adjusting magnetic fields of the same

1986-06-26

1990-02-06

Shoop, Jr., William M.

Coded data generation or conversion

Digital pattern reading type converter

Magnetic, inductive or capacitive

341171, H03M 122

Patent

active

048991457

ABSTRACT:
A rotary encoder comprises a rotator having ring-shaped multipole magnet and stator having magnetic field detecting sensors concentrically provided with the ring-shaped multipole magnet. The stator is provided with a plurality of zero-magnetostrictive amorphous ferromagnetic cores arrayed in correspondence to the magnetic pole pitch of the multipole magnet. Rotation angles of the rotor are detected by coils extended across the plurality of amorphous magnetic cores to be magnetically coupled with the same.

REFERENCES:
patent: 3268887 (1966-08-01), Sullivan
patent: 4156467 (1979-05-01), Patton et al.
Kaneo Mohri and Shigeru Korekoda, "New Force Transducers Using Amorphous Ribbon Cores," IEEE Transactions on Magnetics, vol. Mag.-14, No. 5, Sep. 5, 1978, pp. 1071-1075.

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