High accuracy multipole strip magnet for linear position measurement
Dexter Magnetic Technologies Inc. has announced a new line of multipole strip magnets for use with the austriamicrosystems line of high resolution linear Hall encoders. The multipole magnet, manufactured from a flexible ferrite, is produced through a repeatable proprietary method which yields accuracy within 2.0% of the pole pair (40 µm for 1.0 mm pole).
The cumulative pole accuracy is within 1.0% per 10 mm. A major benefit of this new technology is that Dexter can offer multiple customer defined strip configurations, including industry standard pole spacing of 1.0 mm, 1.2 mm or 2.0 mm, custom magnet lengths and pressure sensitive adhesive backing, while retaining the high level of accuracy.