Magnetic rotary position sensor

Details Magnetic rotary position sensor Magnetic rotary position sensor

2006-04-04

2006-04-04

Aurora, Reena (Department: 2862)

Electricity: measuring and testing

Magnetic

Displacement

C324S207200, C324S207210

Reexamination Certificate

active

07023202

ABSTRACT:
The invention relates to a magnetic rotary position sensor that detects the absolute position of a rotation angle as an electric output in a non-contact state with magneto-electric transducers for converting a magnetic flux variation into a voltage. The magnetic rotary position sensor of the invention includes a cylindrical yoke, semi-cylindrical first and second magnets, and magneto-electric transducers. Here, the first and second magnets are disposed on the inside of the yoke to face to each other, and are magnetized in a manner that the N-pole and S-pole face to each other. The magneto-electric transducers are placed in the magnetic field generated by the first and second magnets, rotate against the first and second magnets, and are disposed at a position to detect the magnetic field in the tangential direction of a circle in which the center of the circle coincides with the center of the yoke and the radius of the circle is equal to or larger than half the outline width of the magneto-electric transducers.

REFERENCES:
patent: 5544000 (1996-08-01), Suzuki et al.
patent: 5789917 (1998-08-01), Oudet et al.
patent: 6753681 (2004-06-01), Enomoto et al.
patent: 100 08 537 (2001-09-01), None
patent: 0 733 881 (1996-09-01), None
patent: 0 961 100 (1999-12-01), None
patent: 1 308 692 (2003-05-01), None

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