Position measurement system for linear induction motor applied in electromagnetic emission system
Position measurement system is very important for linear induction motor normal operation in electromagnetic emission. The static and dynamic operating characteristics of eddy current sensor which was suitable for electromagnetic emission special application cases were studied deeply. The stator of the linear induction motor was constituted by many sections. Based on the specialty,a novel position measurement system was proposed. And then,the design method and derivation process of the measurement system parameters was analyzed based on the study on sensors characteristics and system topology. Finally,a practical prototype of position measurement was developed. Experiments were processed on practical electromagnetic emission system. Experiment results verify the validity and correctness of the design theory and design method proposed.