Arrangement for determining the direction of movement of a...

Details Arrangement for determining the direction of movement of a... Arrangement for determining the direction of movement of a...

2006-08-01

2006-08-01

Le, N. (Department: 2862)

Electricity: measuring and testing

Electrical speed measuring

Including speed analog electrical signal generator

C324S173000, C324S207220, C341S015000

Reexamination Certificate

active

07084619

ABSTRACT:
An arrangement for determining the direction of movement of a motion sensor element, requiring only two sensor elements, which, in a first zone having a first pitch and extending in the form of strips along a motion co-ordinate describing a movement of the motion sensor element, comprises periodically recurrent areas alternately influencing a first magnetic field, and, in a second zone having a second pitch and extending in the form of strips along the motion co-ordinate, comprises periodically recurrent areas alternately influencing a second magnetic field, the arrangement comprising a first sensor element for detecting the influence on the first magnetic field by the first zone of the motion sensor element, and a second sensor element for detecting the influence on the second magnetic field by the second zone of the motion sensor element, the first pitch of the first zone being in an odd, integral ratio to the second pitch of the second zone, such as 1:3, 1:5, etc.

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