Changes

* [[Media:Dry_elphel_model_1_rcvr_coils.jpg]] Photo of crude handmade receiver coil trio using [[http://www.sonion.com Sonion]] T 20 AG telecoils. Each coil is ten millimeters long.

* [[Media:Dry_elphel_model_1_rcvr_coils.jpg]] Photo of crude handmade receiver coil trio using [[http://www.sonion.com Sonion]] T 20 AG telecoils. Each coil is ten millimeters long.

* Three transmitter coils times three receiver coils gives nine coil-coupling measurements, expressable as a 3x3 signal matrix, HFluxPerIMeasured.

* Three transmitter coils times three receiver coils gives nine coil-coupling measurements, expressable as a 3x3 signal matrix, HFluxPerIMeasured (Magnetic flux per current measured)

* Each component of HFLuxPerIMeasured is the magnetic flux through one receiver coil (due to magnetic field H from transmitter coil), divided by the current I in one transmitter coil. HFLuxPerIMeasured has units of meters, and is a geometrical property of the coils' sizes, shapes, number of turns, ferromagnetic core (if any), positions, and orientations. [[EM_Tracker_HFluxPerI_Derivation | HFluxPerI coupling between two dipole coils]].

* Each component of HFluxPerIMeasured is the magnetic flux through one receiver coil (due to magnetic field H from transmitter coil), divided by the current I in one transmitter coil. HFLuxPerIMeasured has units of meters, and is a geometrical property of the coils' sizes, shapes, number of turns, ferromagnetic core (if any), positions, and orientations. [[EM_Tracker_HFluxPerI_Derivation | HFluxPerI coupling between two dipole coils]].

* Algorithm software converts HFluxPerIMeasured to estimated receiver position and orientation, using direct-solution algorithm in Raab's 1981 paper or iterative solution in Raab et. al.'s 1979 paper.

* Algorithm software converts HFluxPerIMeasured to estimated receiver position and orientation, using direct-solution algorithm in Raab's 1981 paper or iterative solution in Raab et. al.'s 1979 paper.