Multi-loop inductive sensor model for vehicle traffic applications

Abstract In this paper we develop an accurate sensor model for inductive loop detectors which are commonly used in traffic management systems. The model is based on rectangular coils and can be readily used for the analysis of vehicle inductive signatures, but it can be easily extended to other applications such as eddy-current non-destructive testing, magnetic resonance or induction heating. Our proposed model considers both flat and non-flat vehicle profiles and exhibits better performance than the standard approach under all the tested scenarios.