A three-dimensional automated testing platform for 3D magnetic sensors
T. van Hooff (TU Delft - Electrical Engineering, Mathematics and Computer Science)
A.J.R. Repriels (TU Delft - Electrical Engineering, Mathematics and Computer Science)
Karen M. Dowling – Mentor (TU Delft - Electronic Instrumentation)
Ilke Ercan – Graduation committee member (TU Delft - Electrical Engineering Education)
Jacopo Ruggeri – Graduation committee member (TU Delft - Electronic Instrumentation)
More Info
expand_more
Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.
Abstract
Currently, the testing procedure for 3D Hall sensors at the MUSIC lab is time-consuming, labour intensive, and is susceptible to systematic errors. There is a need for an automated, accurate, and repeatable test setup for 3D magnetic sensor characterisation. That is why the objective of this thesis is to develop a control interface that allows users to define arbitrary magnetic field vectors and perform 3D magnetic field sweeps on a Hall sensor placed in a 3D Helmholtz coil. The development was performed in three stages: calibration of a 3D Helmholtz coil, development of a 3D magnetic field sweeping script, and validation of the system by benchmarking measurements from two commercially available 3D Hall sensors against known magnetic fields. The 3D Helmholtz coil was successfully calibrated, finding that the generated magnetic field strength of 2.87mT corresponds to the maximum relative uncertainty of 2%. A LabVIEW script was developed, enabling users to generate 3D static magnetic field vectors and 3D magnetic field sweeps with definable orientation, resolution and strength. Lastly, the system was validated using two commercial Hall sensors, confirming its stability and accuracy for testing other Hall sensors. This system can be used for repeatable magnetic sensor evaluation in research, with a versatility that can benefit various sensor configurations.