1. ISTCMTM
  2. All Volumes and Issues
  3. Volume 86, no.4, 2025
  4. MAGNETOMETER BASED ON A PARAMETRIC INDUCTIVE SENSOR IN A RESONANT CIRCUIT

MAGNETOMETER BASED ON A PARAMETRIC INDUCTIVE SENSOR IN A RESONANT CIRCUIT

ISTCMTM.
2025;
Volume 86(4), Number 4
: 20-25
https://doi.org/10.23939/istcmtm2025.04
Authors:
  1. Yurii Khomiak
  2. Ivan Kornіev
1
National Technical University “Kharkiv Polytechnic Institute”
2
National Technical University “Kharkiv Polytechnic Institute”

This paper presents the development and experimental investigation of a magnetometer based on a parametric magnetic inductance sensor integrated into a self-oscillating LC circuit. The sensing element is a single-layer coil with a soft ferromagnetic core, whose inductance varies in response to an external magnetic field. This inductance modulation results in a shift in the oscillator frequency, enabling magnetic field measurements by tracking frequency changes. The proposed sensor architecture is compact, energy-efficient, and exhibits stable, repeatable, and monotonic response characteristics over a wide range of magnetic fields. Experimental testing using a calibrated solenoid confirms the device’s high sensitivity and minimal hysteresis. The proposed solution offers a cost-effective and digitally compatible alternative to conventional fluxgate magnetometer designs, with potential applications in industrial instrumentation, field diagnostics, and electromagnetic measurements.

magnetometer
LC Oscillator
Magnetic Permeability
Parametric Inductive Sensor
Soft Magnetic Material
Magnetic field measurements
Electromagnetic Nondestructive Testing
Fluxgate.
  1. V. O. Hirka and M. Ye. Koshliakov, Magnetometry and Magnetic Sensors. Naukova Dumka, 2013.
  2. S. Tumanski, Handbook of Magnetic Measurements. Boca Raton: CRC Press, 2007.
  3. P. Ripka, Magnetic Sensors and Magnetometers. Artech House, 2001.
  4. I. V. Zhuk, M. A. Ivaniuk, and V. Yu. Redko, “Magnetic sensors: operating principles, characteristics, and applications”, Bulletin of NTUU "KPI". Series: Radiotechnics, Radioappliance Engineering, no. 66, pp. 38–46, 2016.
  5. P. Martinek and P. Ripka, “Advances in magnetometers and magnetic sensors”, Sensors, vol. 20, no. 16, pp. 1–23, 2020.
  6. I. V. Zhezhelenko, “Magnetic field sensors in electrical equipment monitoring systems”, Electrical Engineering and Electromechanics, no. 3, pp. 38–44, 2021.
  7. V. R. Krykun, Yu. V. Khomiak, and I. K. Korniev, “Phase-impulse ferroprobe for magnetic field measurement”, Bulletin of NTU "KhPI". Series: New Solutions in Modern Technologies, no. 3 (21), pp. 32–38, 2024.
  8. X. Liu, J.Zhang, Y. Wang, “Study of nonlinear excitation circuits for fluxgate magnetometer”, Sensors, vol. 23, no. 5, 2023.
  9. I. K. Korniev and Yu. V. Khomiak, “Computerized system for studying a phase-impulse ferroprobe,” in Proc. 18th Int. Sci.-Pract. Conf. of Masters and PhD Students “Theoretical and Practical Research of Young Scientists”, Kharkiv, Ukraine, 2024, pp. 153.
  10. R. Farita et al. Fluxgate Magnetometer Project Report. Massachusetts Institute of Technology, 2016.
  11. T. Dyer, P. F. Griffin, E. Riis, “Single-board low-noise fluxgate magnetometer”, Journal of Applied Physics, vol. 135, no. 3. 2024.
  12. T. H. Nguyen, J. T. Jeng, L. V. Bui, Development of a tri-axis concentric fluxgate magnetometer with high orthogonality and high linearity, IEEE Transactions on Instrumentation and Measurement, 2025.
  13. P. Priftis, S. Angelopoulos, A. Ktena, “Development of a high-sensitivity orthogonal fluxgate sensor”, Journal of Magnetism and Magnetic Materials, 2024.
  14. P. Horowitz, W. Hill, The Art of Electronics. 3rd ed. Cambridge University Press, 2015. 1225 p.
  15. U. Tietze, Ch. Schenk, E. Gamm Electronic Circuits: Handbook for Design and Application. 2nd ed. Springer, 2008. 1543 p.