Abstract
The present paper deals with the modelling of a Hall effect current sensor with open core magnetic concentrator. 3D magnetic field modelling is carried out using the finite element method (FEM) and Comsol Multiphysics software. Two rectangular core constructions are considered. Different geometric parameters of the magnetic concentrator are varied and their influence on the sensor characteristic is studied, with the aim of reducing the dependence on the output signal on the distance to the conductor. Of the studied parameters, core window length leads to the most significant change in the sensor characteristic. Future work can include the optimization of the sensor construction.
Highlights
Current sensors based on the Hall effect are widely used in different applications and are the subject of increasing interest in recent years [1,2,3,4]
The output signal of sensors without a magnetic core strongly depends on the distance between the conductor and the Hall sensor, and different approaches are used for eliminating this dependence [5,6,7]
Available current measuring apparatus based on Hall effect sensors usually include a closed magnetic core with a small gap where the Hall sensor is placed
Summary
Current sensors based on the Hall effect are widely used in different applications and are the subject of increasing interest in recent years [1,2,3,4]. 3D FEM modelling of the magnetic field in a Hall effect‐based current dependence of the output signal on the distance between the conductor and the Hall plate. This can sensor an introduced magnetic concentrator of open core field type in is carried out with thecurrent aim of In with the present. FEM modelling of sensor the magnetic a Hall effect‐based give the opportunity ofpaper, further3Ddesign of a current with preliminary estimated error due to the reducing the dependence of the output signal on the distance between the conductor and the. This the opportunity of further design of a current sensor with preliminary estimated
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