Method for determining inductance as input parameter for characteristic curve of armature movement of coil of switching magnet, involves determining inductance of one of iterative steps based on one of current values

摘要

The method involves alternately charging a coil with positive voltages (+U1 to + u4) and negative voltages (-U1 to -U4) Negative voltages at a starting-time point, and determining temporal beginning and temporal duration between iterative steps, where a pulse duration of each iterative step is varied. Current values for each iterative step are measured at respective time points. Inductance of one of the iterative steps is determined based on one of the current values, where the iterative steps are executed based on specific equations.