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Magnetic field at sensor: Tool to measure the valid air-gap (distances from magnet surface to sensor) given a certain magnet size and remanence (diametrical magnetization). Worst case angle error due to assembly tolerances: Tool to measure the worst case angle error caused by tilts and eccentricites of magnet and sensor elements against the axis of rotation. The worst case angle error is taken at the worst rotational position for the maximum assembly tolerances combination. Simulation results based on worst case scenario.
NOTE: Tool describes purely the error contribution due to assembly tolerances. Additional tolerances based on the ICs temperature and life time drift are not considered! Please refer to datasheet, www.infineon.com/sensors
Magnet Properties (diametrical magnetization)
Magnet Remanence
mT
Magnet Thickness
mm
Magnet Diameter
mm
* 1mT = 10G
Sensor Specification
Bmin required
mT, @Tambient
Bmax required
mT, @Tambient
* parameter to be found in appropriate product datasheet
Assembly Tolerances
Air-gap
mm
Distance between surface of the magnet and sensor.
Maximum Beta
degree
Tilt angle of magnet
with respect to axis of rotation.
Maximum Lambda
degree
Tilt angle of sensor die with respect to axis of rotation. Lambda should not be less than the specified die tilt of the inside the package.
Maximum Delta
µm
Eccentricity of magnet with respect to axis of rotation.
Maximum Epsilon
µm
Eccentricity of sensor centre with respect to axis of rotation. Epsilion should not be less than the specified die eccentricity of the die inside the package.
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