EM Tracker HFluxPerI Derivation

6DOF electromagnetic tracker electromagnetics

We assume that, at the working frequency or frequencies, the wavelength is large compared to the distance between transmitter coil trio and receiver coil trio. This is the quasi-static approximation.

We assume that each coil is so small that its shape does not matter, only its size times its number of turns. This is the dipole approximation. Each coil has an effective-area vector, Aeff_vector, usually measured in square meters, which completely describes a dipole coil's electromagnetic properties.