Title :
Rail Current Measurement With Noninvasive Large Dynamic Probe
Author :
Mariscotti, Andrea
Author_Institution :
Electr. Eng. Dept., Univ. of Genova, Genoa
fDate :
5/1/2009 12:00:00 AM
Abstract :
A noninvasive current sensor for rail installation is presented, starting from the requirement definition and preliminary finite-element method (FEM) analysis. The sensor is complemented with a low-noise large-dynamic-range amplifier; the results of a thorough experimental characterization are presented and commented upon, together with a series of considerations on the suitability of an open-type sensor with respect to external disturbance. The dynamic range and frequency range are quite extended (from 1 mA to 10 kA and 10 Hz to 20 kHz, respectively) so that it may be defined as a high-performance sensor.
Keywords :
amplifiers; electric sensing devices; finite element analysis; railway electrification; FEM; finite-element method; high-performance sensor; low-noise large-dynamic-range amplifier; noninvasive large dynamic probe; rail current measurement; Amplifier noise; magnetic field measurements; magnetic variable measurement; rail transportation electronics; rail transportation power systems; rail transportation testing; solenoids;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2009.2014508
