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<p>A&#xa0;method for magnetic positioning of magnetic field sensors using a&#xa0;base station consisting of multiple source coils is proposed. It involves comparing the field measured by the magnetic sensors with the analytically calculated field generated by the base station. The base station field is calculated using the Biot-Savart-Laplace law It is also measured experimentally using a&#xa0;two-dimensional scanner. Then, the correction factors are calculated using the least squares method to calibrate the theoretical field with the measured field. The receiving magnetic sensor consists of 3&#xa0;receiver coils forming a&#xa0;single sensor. The coils are oriented orthogonally to each other in the XOY, XOZ, and YOZ planes of the Cartesian coordinate system. The base station consists of 9&#xa0;source coils, each of which emits a&#xa0;harmonic signal at a&#xa0;different frequency in the range of 10&#xa0;to 20 kHz. This allows the signals to be separated during reception using a&#xa0;digital filter.</p>

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Magnetic sensor positioning system in a heterogeneous field of a multi-frequency base station

  • 期刊论文

  • 发表日期：

    2025年7月1日

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  • A. E. Kuzovova,
  • S. N. Roslyakov,
  • D. Ya. Sukhanov,
  • D. S. Zhdanov

摘要

A method for magnetic positioning of magnetic field sensors using a base station consisting of multiple source coils is proposed. It involves comparing the field measured by the magnetic sensors with the analytically calculated field generated by the base station. The base station field is calculated using the Biot-Savart-Laplace law It is also measured experimentally using a two-dimensional scanner. Then, the correction factors are calculated using the least squares method to calibrate the theoretical field with the measured field. The receiving magnetic sensor consists of 3 receiver coils forming a single sensor. The coils are oriented orthogonally to each other in the XOY, XOZ, and YOZ planes of the Cartesian coordinate system. The base station consists of 9 source coils, each of which emits a harmonic signal at a different frequency in the range of 10 to 20 kHz. This allows the signals to be separated during reception using a digital filter.