The Magnetic Design Tool for Angle Sensors (Figure 1) is a tool designed to support designs with xMR-based angular sensors and diametrically magnetized disk magnets.
On the one hand the magnet’s magnetic field measured at the angle sensor position is calculated to determine the required air-gap (distance from magnet surface to sensor). On the other hand, assembly tolerances like tilt and eccentricity of magnet and sensor with respect to the axis of rotation lead to an error in the measured angle, the assembly error. The assembly error can be calculated in the tool and be added to the specified angle error from the data sheet.
Please read more in the downloadable manual.

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