PROCEDE ET DISPOSITIF DE MESURE MAGNETIQUE DE LA POSITION ET DE L'ORIENTATION D'UN OBJET MOBILE PAR RAPPORT A UNE STRUCTURE FIXE

摘要

The device comprises a magnetic field transmission device with three orthogonal coils defining a coordinate reference field integral with a fixed structure and a sensor integral with the moving object that detects the generated magnetic field using three detection coils. A voltage calibration can be applied at frequencies different to normal operating frequencies so allowing calibration without preventing measurement and allow determination of correction values from the inverse of sensor transfer functions. An Independent claim is made for a method for determination of the position and orientation of a mobile object with respect to a fixed structure base on the use of electromagnetic coil assemblies.