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A LabVIEW-based automated system has been developed to generate uniform and precise DC magnetic fields ranging from 0.1–2000 G. The system interfaces a multilayer water-cooled solenoid with a programmable power supply controlled by a PC with LabVIEW software. The field distribution inside the solenoid was studied using the finite element method of magnetics (FEMM) software analysis, resulting in close agreement with experimental values (less than 4.5%). The magnetic field non-uniformity along the axis of the solenoid was observed to be less than 1% for 6 cm. The magnetic field generated by the setup was validated theoretically and experimentally using three magnetometers. The percentage error in measurement with each magnetometer (i.e. fluxgate, search coil, and hall sensor) was reported as 0.37%, 1.75%, and 1.83%, respectively. Moreover, the system was successfully tested for calibration and relative permeability measurement applications.
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Katiyar et al. (2025) studied this question.
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