Method for producing a magnetic multi-pole encoder

Details Method for producing a magnetic multi-pole encoder Method for producing a magnetic multi-pole encoder

G - Physics

01

P

G01P 3/44 (2006.01) G01P 3/487 (2006.01) H01F 13/00 (2006.01)

Patent

CA 2490929

A method for producing a magnetic multi-pole encoder with a support and at least one track made of a magnetizable material, whereby the magnetizable material track, under the effect of an externally applied magnetic field, is strip magnetized with alternating polarity, is described. In the invention method, the magnetic track is pre-magnetized with the same polarity in a first step and, in a second step, the polarity is changed in strips to the opposite polarity. The invention method makes it possible not only to use simplified magnetization tools, but it is also faster to carry out and delivers extremely precise pole pitches without any additional optimization and adjustment steps.

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