Answers are grounded in this paper and cite their sources.
This analysis examines the impedance traits of air-core coils in AC magnetometry, highlighting SAR measurement effects.
The aim of the study was to analyze the impedance characteristics of the transmitting coil used in a system for AC magnetometry and the measurement of the Specific Absorption Rate (SAR) of magnetic nanoparticles. A theoretical relationship for the current distribution in a multilayer air-core coil was derived. The formulas for the coil’s stray capacitance were modified to account for additional spacing between layers, introduced to reduce the interlayer capacitance. The developed theory was applied to a two-layer air-core coil with an additional gap between the layers. The frequency dependence of the coil impedance was measured. The measurements confirmed an extension of the useful operating frequency range of the constructed coil.
No takes yet. Share an insight, caveat, or question.
Midura et al. (2025) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: