Numerical simulation assesses magnetic flux density in three directions using a vector scanning-SQUID microscope, highlighting methods to improve measurement precision.
Aiming to improve the efficiency and resolution of the scanning SQUID microscope, a three-dimensional vector magnetic field sensor has been created by some of the present authors. The sensor consists of three pickup coils that can simultaneously measure magnetic flux density in the x , y , and z directions. In this work, we perform a numerical simulation of the measurement process by this sensor, taking into account the shape of the sensor and the demagnetization effects due to the superconductivity on the sensor body. We demonstrate how the magnetic field is measured and visualized by this system and suggest numerical methods to refine the obtained magnetic flux image.
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Hayashi et al. (2025) studied this question.
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