The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 19, 2000
Filed:
Dec. 30, 1998
Fernand Peilloud, Hery sur Alby, FR;
The Torrington Company, Torrington, CT (US);
Abstract
A fixed sensor has two sensing elements delivering sinusoidal signals .GAMMA., and is mounted in front of the magnetized face of an annular multipolar encoder. The axis (.delta..sub.C) of the sensor (5) having the centers of the two sensing elements (51 and 52) is located at a distance (R.sub.0) from the axis (.delta..sub.R) of rotation of the encoder (4), and the encoder (4) has on its magnetized face (6) 2 m magnetic transitions between poles of opposite polarities, north and south, in the form of spirals, whose tracing is obtained by successive rotations by angles .pi./m of the first transition around the center (0) of the encoder, defined in polar coordinates (.mu., .theta.) by the equations: ##EQU1##