Title :
Evaluation of frequency behavior of coils for reference magnetic field generation
Author :
Crotti, Gabriella ; Giordano, Domenico
Author_Institution :
Inst. Elettrotecnico Nazionale Galileo Ferraris, Torino, Italy
fDate :
4/1/2005 12:00:00 AM
Abstract :
The frequency behavior of coils for the generation of reference time-varying magnetic fields is evaluated starting from the coil construction parameters (geometrical dimensions, number of turns). A coil equivalent circuit with lumped parameters is considered and the related equation system is solved in the frequency domain. The computed frequency behavior of the coil impedance is validated by comparison with experimental data. The operating frequency limit is identified from the analysis of the coil impedance variation with frequency as a function of the construction parameters.
Keywords :
calibration; coils; electric impedance measurement; equivalent circuits; frequency measurement; frequency-domain analysis; magnetic field measurement; measurement standards; calibration systems; coil construction parameters; coil equivalent circuit; coil impedance; frequency behavior; frequency domain; frequency limit; geometrical dimensions; impedance variation; lumped parameters; magnetic field measurements; reference magnetic field generation; time varying magnetic fields; Capacitance; Coils; Equations; Equivalent circuits; Frequency domain analysis; Impedance; Joining processes; Magnetic field measurement; Magnetic fields; Voltage; Calibration systems; coils; frequency behavior; magnetic field measurements;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2004.843062
