Magnetic Field Generated by the Loops Used in Traffic Control Systems

Salcedo, Antonio Mocholí; Arroyo-Nunez, Jose Humberto; Milián-Sánchez, V.; Palomo-Anaya, Maria J.; Arroyo-Nunez, Alexander

doi:10.1109/tits.2016.2632972

Cited by 14 publications

(16 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Throughout time, various methods to calculate the inductance of magnetic loops according to different geometric configurations have been proposed [22][23][24][25][26][27][28], such as the Mills' method based on Grover's equations [22]. Most of the mathematical expressions for these calculations appear in classical texts [23] and based on these expressions, the inductance values presented by other different models of loops can be easily deduced.…”

Section: Methods For Inductance Calculationmentioning

confidence: 99%

“…However, the development of computer systems has allowed to implement numerical methods that make use of the intrinsic definition of the physical process of magnetic induction. In this regard, it would be convenient to include our previously presented work [25], in which the methods to calculate the inductance of a rectangular loop were analyzed and compared with other calculation techniques and real measures.…”

Section: Methods For Inductance Calculationmentioning

confidence: 99%

“…On the other hand, due to the abrupt change that appears in the component of the magnetic field in the vicinity of the conductors, it is evident the importance of choosing the number of points and . In our previous article [25], it was shown that the optimal values of and to minimize the error in the calculation of the inductance for a single rectangular loop were given by…”

Section: Methods For Inductance Calculationmentioning

confidence: 99%

“…To obtain [22][23][24][25][26][27], we focus on the mutual inductance of a pair of parallel conductors, whose expression is:…”

Section: Methods For Inductance Calculationmentioning

confidence: 99%

See 3 more Smart Citations

Double Magnetic Loop and Methods for Calculating Its Inductance

Belenguer

Salcedo

Sánchez

et al. 2018

Journal of Advanced Transportation

View full text Add to dashboard Cite

Due to their simplicity and operating mode, magnetic loops are one of the most used traffic sensors in Intelligent Transportation Systems (ITS). However, at this moment, their potential is not being fully exploited, as neither the speed nor the length of the vehicles can be surely ascertained with the use of a single magnetic loop. In this way, the vast majority of them are only being used to count vehicles on urban and interurban roads. For this reason, in order to contribute to the development of new traffic sensors and make roads safer, this paper introduces a theoretical study to explain the design and peculiarities of the innovative double loops, how to calculate their magnetic field and three different methods to calculate their inductance. Finally, the different inductance values obtained by these three methods will be analyzed and compared with experimental measurements carried out by our research group in order to know which method is more accurate and if all of them are equally reliable.

show abstract

Section: Methods For Inductance Calculationmentioning

confidence: 99%

Section: Methods For Inductance Calculationmentioning

confidence: 99%

Section: Methods For Inductance Calculationmentioning

confidence: 99%

“…To obtain [22][23][24][25][26][27], we focus on the mutual inductance of a pair of parallel conductors, whose expression is:…”

Section: Methods For Inductance Calculationmentioning

confidence: 99%

See 2 more Smart Citations

Double Magnetic Loop and Methods for Calculating Its Inductance

Belenguer

Salcedo

Sánchez

et al. 2018

Journal of Advanced Transportation

View full text Add to dashboard Cite

show abstract

“…Over the last several decades, inductive-loop (IL) sensors have become increasingly important as reliable vehicle detectors, for proper operation of traffic control systems, as well as for increase of the responsiveness of intelligent transportation systems (ITS) [ 1 ]. However, a multifrequency impedance measurement is a new uprising research filed in the IL sensor technology.…”

Section: Introductionmentioning

confidence: 99%

Multifrequency Vector Measurement System for Reliable Vehicle Magnetic Profile Assessment

Marszałek

Duda

2020

Sensors

View full text Add to dashboard Cite

This paper describes the design and the performance of simultaneous, multifrequency impedance measurement system for four inductive-loop (IL) sensors which have been developed for vehicle parameters measurement based on vehicle magnetic profile (VMP) analysis. Simultaneous impedance measurement on several excitation frequencies increases the VMP measurement reliability because typical electromagnetic interferences (EMI) are narrowband, and should not simultaneously affect, in the same way, all measurement bands that are spread in the frequency, i.e., it is expected that at least one measurement band is disturbance-free. The system consists of two standard and two slim IL sensors, specially designed and installed, the analogue front-end, and an industrial computer with digital-to-analogue and analogue-to-digital converters accessed via field-programmable gate array (FPGA). The impedance of the IL sensors is obtained by vector measurement of voltages from auto-balancing bridge (ABB) front-end. Complex voltages are demodulated from excitation frequencies with FIR filters designed with the flat-top windows. The system is capable of delivering VMPs in real-time mode, and also storing voltages for off-line postprocessing and analysis. Field distributions and sensitivities of slim and standard IL sensors are also discussed. Field test confirmed assumed increased reliability of VMP measurement for proposed simultaneous multifrequency operational mode.

show abstract

Analytical characterisation of magnetic field generated by ICPT wireless charger

Triviño-Cabrera¹,

Aguado²,

González³

2017

Electron. lett.

View full text Add to dashboard Cite

The analytical characterisation of the magnetic field generated by a wireless charger based on the inductively coupled power transfer technique is presented. With this tool, the magnetic field could be computed in any spatial position and no dipolar approximation is necessary to be taken. The model is contrasted with measurements performed in a 3.7 kW prototype for electric vehicle. The comparison shows that there is a good agreement between the measurements and the model.

show abstract

Magnetic Field Generated by the Loops Used in Traffic Control Systems

Cited by 14 publications

References 7 publications

Double Magnetic Loop and Methods for Calculating Its Inductance

Double Magnetic Loop and Methods for Calculating Its Inductance

Multifrequency Vector Measurement System for Reliable Vehicle Magnetic Profile Assessment

Analytical characterisation of magnetic field generated by ICPT wireless charger

Contact Info

Product

Resources

About