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 the coils are so small that their shape does not matter, only their size. This is the dipole approximation. Each coil has an effective-area vector, Aeff_vector, which completely describes a dipole coil's electromagnetic properties.