SBAU419 November 2022 TMAG5170
Cylindrical magnets are also commonly available with a variety of polarization options. When "Diametric Cylinder" is selected for the magnet shape, the resulting magnet will by definition be a dipole magnet. The result is that pole count is not a needed input. The default polarization direction for this magnet type is in the Y-direction.
This magnet type is commonly used to track rotational angle. Used with either a single two-dimensional latch sensor or with two one-dimensional latch sensors, four distinct positions per revolution may be observed. However, if used with a linear device it is possible to capture absolute angle using electrical outputs that are 90° out of phase. This may be done with two one dimensional devices spaced about the magnet or using a single 3D sensor capable of capturing field components which are inherently 90° phase separated.