In this paper, a detailed study about the value, in any point of space $P(x,y,z)$ , of the magnetic field generated by a rectangular loop that carries a current $I$ has been made. The analysis focuses on the study of rectangular magnetic loops that are used as sensors in traffic control systems. The inductance of magnetic loops is calculated numerically in three different ways, and the optimal way of performing the numerical summation is derived, which takes into account the magnetic field singularity on the conductor itself. The calculations also take into account the distance between the different turns in the loop. Later, the results are compared with the most commonly used empirical methods for inductance calculation. This paper shows the great similarity between empirical and numerically calculated results and concludes with the experimental verification and validation of the obtained theoretical results. Thus, both the system to evaluate the results and the proposed numerical methods for inductance calculation can be used in other loops geometries. This methodology can also be used for the mutual inductance calculation that appears between a buried loop and any kind of vehicle geometry, whose oscillation frequency variation determines the magnetic signature. The mutual inductance calculation can be used to determine the signal level that can be exchanged between the loops on the pavement and those on the vehicle, which in turn can be used as a short-range communication system between vehicles and infrastructures, with applications such as vehicles classification, speed measurements, or communication between vehicles.


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    Titel :

    Magnetic Field Generated by the Loops Used in Traffic Control Systems




    Erscheinungsdatum :

    2017-08-01


    Format / Umfang :

    1781193 byte




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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