Title :
Optimized CdTe sensors for measurement of electric and magnetic fields in the near-field region
Author :
Cecelja, Franjo ; Balachandran, Wamadeva
Author_Institution :
Dept. of Syst. Eng., Brunel Univ., Uxbridge, UK
fDate :
6/1/2000 12:00:00 AM
Abstract :
We present novel electric and magnetic field measurement systems utilizing optical technologies, which have been developed, tested, and calibrated in the frequency region up to 2 GHz. They show an advantage over currently available measurement systems in that they are passive, all-dielectric, and EM immune. A detailed analysis of field perturbation by the measuring probes in the near-field region was performed using finite-difference time-domain (FDTD) algorithm for solving Maxwell´s equations. Both probes were calibrated using a gigahertz transversal electric and magnetic cell, and the results show a linear response
Keywords :
Faraday effect; II-VI semiconductors; Pockels effect; cadmium compounds; electric field measurement; electro-optical devices; electromagnetic compatibility; fibre optic sensors; finite difference time-domain analysis; light polarisation; magnetic field measurement; magneto-optical sensors; microwave measurement; optimisation; polarimetry; 2 GHz; CdMnTe; CdTe; CdTe sensors; EMC; FDTD algorithm; GHz transversal electric cell; Maxwell´s equations; calibration; dielectric measurement; electric fields; field perturbation; finite-difference time-domain algorithm; high-frequency radiation; linear response; magnetic cell; magnetic fields; measuring probes; near-field region; optical technologies; passive measurement; up to 2 GHz; Current measurement; Electric variables measurement; Finite difference methods; Frequency; Magnetic field measurement; Magnetic sensors; Optical sensors; Probes; System testing; Time domain analysis;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
