DEVICE FOR MEASURING A POSITION USING THE HALL EFFECT

摘要

The invention relates to a device for measuring a position using the Hall effect, which comprises: a casing (30) and a Hall-effect sensor (1), comprising a cylindrical magnet (10) and a chip (20), in which: the chip (20) is fastened to the magnet (10); the magnet (10) has a hole (11) right through it along an axis perpendicular to its bases, and includes an outer perimeter (12) and an inner perimeter (13), the sensor (1) being positioned in said casing (30). According to the invention, the device is noteworthy in that: the inner perimeter (13) is maximized relative to the mechanical stresses of the magnet (10); and the surface area of the hole (11) is equal to or greater than the surface area of the chip (20), so as to circumvent the presence of iron filings on the face of the chip (20).