Magnetic absolute position sensor

Details Magnetic absolute position sensor Magnetic absolute position sensor

2009-02-22

2011-11-08

Phan, Huy Q (Department: 2858)

Electricity: measuring and testing

Magnetic

Displacement

C324S207220, C324S207230

Reexamination Certificate

active

08054068

ABSTRACT:
A magnetic absolute position sensor comprises: a read head, a horizontal magnetic scale, and an oblique magnetic scale. The read head is provided with a first position sensing unit and a second position sensing unit which are used produce signal with respect to the horizontal magnetic scale and the oblique magnetic scale, respectively. The distance between the first position sensing unit and the horizontal magnetic scale is constant, and the distance between the second position sensing unit and the oblique magnetic scale changes from narrow to wide. The absolute position identifying system is electrical connected to the first and second position sensing units, respectively, to obtain absolute position coordinates.

REFERENCES:
patent: 5497083 (1996-03-01), Nakazato et al.
patent: 5841274 (1998-11-01), Masreliez et al.

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