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Abstract <p>A high-sensitivity inductive sensor for detecting composite particles with different Fe<sub>3</sub>O<sub>4</sub> phase contents based on differential resonance circuit with planar coils, controlled by STM32 microcontroller is developed. The measurements demonstrate a nearly linear dependence of the output voltage on the concentration of magnetic phase, with a sensitivity amounting to about 14 mV/wt %.</p>

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High-Sensitivity Inductive Sensors with Resonant Differential Filters and STM32 Microcontroller for Magnetic Particle Detection

  • 期刊论文

  • 发表日期：

    2026年3月1日

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  • A. Acuna Perez,
  • E. V. Shevchenko,
  • A. V. Koshkin,
  • N. A. Yudanov,
  • L. V. Panina,
  • V. G. Kolesnikova,
  • A. A. Ignatov,
  • V. V. Rodionova

摘要

Abstract

A high-sensitivity inductive sensor for detecting composite particles with different Fe3O4 phase contents based on differential resonance circuit with planar coils, controlled by STM32 microcontroller is developed. The measurements demonstrate a nearly linear dependence of the output voltage on the concentration of magnetic phase, with a sensitivity amounting to about 14 mV/wt %.