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Magnetic Flux Density Measurement Platform for an Inductive Wireless Power Transmitter Coil Design.

Nataša Prosen1, Miro Milanovič1, Jure Domajnko1

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This study introduces an automated platform for measuring magnetic flux density in wireless power transfer systems. This enables precise coil design and optimization for improved efficiency.

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Area of Science:

  • Electromagnetics and Electrical Engineering
  • Wireless Power Transfer Technology

Background:

  • Inductive wireless power transfer (WPT) systems rely on magnetic fields for energy transmission.
  • Accurate measurement of magnetic flux density is crucial for designing efficient transmitter and receiver coils.
  • Existing methods for magnetic field measurement can be time-consuming and lack automation.

Purpose of the Study:

  • To develop and present an automated platform for precise magnetic flux density measurement.
  • To facilitate the characterization of transmitter/receiver coils in inductive WPT systems.
  • To enable data-driven design and optimization of WPT coils.

Main Methods:

  • A 3-axis search coil was employed for measuring magnetic flux density.
  • A 3D positioning mechanism precisely located the search coil above the transmitter coil.
  • Collected data was processed by a computer application for visualization.

Main Results:

  • The platform successfully automated the magnetic flux density measurement process.
  • Detailed magnetic field distribution maps were generated for transmitter coils.
  • The system provided point-specific magnetic flux density data.

Conclusions:

  • The developed platform offers an efficient and accurate method for magnetic flux density measurement.
  • The acquired data can be integrated with electromagnetic field solvers for WPT coil optimization.
  • This facilitates the advancement of inductive wireless power transfer system design.