New robust coil sensors for near field characterization

B. Vincent, O. Chadebec, J.-L. Schanen, C. A.F. Sartori, L. Krähenbühl, R. Perrussel, K. Berger

Abstract


This work introduces a new generation of magnetic field sensors, based on the spherical harmonic decomposition concept. The measurement principle is similar to a spatial filtering: according to the coil shape, the sensors are just sensitive to a specific component of the multipolar expansion. Five coil shapes are determined, in order to account for the first two orders of the multipolar expansion. The way of determining the coil shape is first explained, and a validation is proposed using a finite element software.

Full Text:

PDF

References


J.P. Keradec, J. Lorange, J.-L. Schanen, B. Cogitore, T. Creuzet, C. Brun, "Nano-teslameter for characterization of the fields emitted and received by wound electronic components," IMTC 2003.

L.-L. Rouve, L. Schmerber, O. Chadebec, A. Foggia, "Optimal magnetic sensor location for spherical harmonic identification applied to radiated electrical devices," Magnetics, IEEE Transactions on, Volume 42, Issue 4, April 2006 pp. 1167-1170

A.V. Kildishev, S.A. Volokhov, J.D. Saltykov, "Measurement of the Spacecraft Main Magnetic Parameters," IEEE, 1997, pp. 669-675.

J.R. Bergervoet and H. Van Veen, "A large-loop antenna for magnetic field measurements," Zurick International Symposium on EMC, Proceedings, 1989, pp.:29-34.

M. Savi, T.Z. Gireli, F.A. Tirich, C. A. F. Sartori, "Developing a Van Veen & Bergervoet Antenna," EMC 2004, pp. 717-720.

Standard CISPR 16-1, annex P, 2002, pp. 230-237 and 396-409.

W. A. Pasmooij, "A „Helmholtz‟ large loop antenna system for improved magnetic field measurements," EMC 1992, pp. 143-148.

J.D. Jackson, "Classical Electrodynamics," 3rd ed., 1998, pp.407-456.

J.P. Wikswo, "Scalar multipole expansions and their dipole equivalents," J. Appl. Phys., 1985, pp. 4301-4308.

J.C. Nedelec, "Acoustic and electromagnetic equations: integral representations for harmonic problem,`` Springer, 2001, pp. 24.

http://www.cedrat-groupe.com/


Refbacks

  • There are currently no refbacks.


© Copyright 2007-2016 JMOe Brazilian Microwave and Optoelectronics Society (SBMO) and Brazilian Society of Electromagnetism (SBMag)