Measuring device for determining a position between a...

Details Measuring device for determining a position between a... Measuring device for determining a position between a...

2011-08-16

2011-08-16

Patidar, Jay M (Department: 2858)

Electricity: measuring and testing

Magnetic

Displacement

C324S207200, C324S207250, C324S207240

Reexamination Certificate

active

07999535

ABSTRACT:
The invention relates to a measuring apparatus comprising a sensing head (15) for determining the position of a primary part (27) on a secondary part. The sensing head (15) is fixedly connected to a primary part (27) or is integrated therein while the primary part (27) and the secondary part form a linear motor (30). Furthermore, the secondary part is embodied as a rack (16) which is provided at least with ferromagnetic material and preferably equidistant teeth (18) in a preferred direction (13), said teeth (18) containing at least ferromagnetic material. The sensing head (15) can be moved in the preferred direction (13) and opposite thereto. An air gap is located between the sensing head (15) and the rack (16) while the sensing head (15) is equipped with at least one sensor (1-12, 19, 31), by means of which magnetic fields can be measured in order to determine a position.

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