Speaker
Description
In the conventional rotating-coil measurements the flux linkage intercepted by the induction coils is obtained by integrating the voltage signal between encoder triggers of two angular positions, consequently reducing the influence of the speed variation.
In this talk, a rotating-coil measurement method is proposed that does not employ an angular encoder. Instead, it is based on reconstructing the rotation speed and the angular positions relying on the coil voltage signals. The field quality error of the 10-4 range for particle accelerator magnets allows the primary coil signal to be considered a pure sine function for speed variation correction.
A feasibility study and a metrological characterization of a developed test system is presented, followed by the proposals for possible future coil and system designs.