Title :
Fluxgate magnetometer for low-frequency magnetic electromagnetic compatibility measurements
Author :
Weyand, Kurt ; Bosse, Volker
Author_Institution :
Phys. Tech. Bundesanstalt, Braunschweig, Germany
fDate :
4/1/1997 12:00:00 AM
Abstract :
A new fluxgate magnetometer has been developed for measuring magnetic fields with frequencies up to 2 kHz, based on a novel sensor design and readout electronics which ensure the stabilization of the premagnetizing field. The sensor is made from an amorphous core material, 25-μm thick, and provides a closed path for the premagnetizing field. The magnetometer has been designed using a pulse-width modulator and has a resolution of 10 nT. Errors due to nonlinearity and frequency response are smaller than 0.1 mT/T over the specified frequency range
Keywords :
calibration; electromagnetic compatibility; fluxgate magnetometers; frequency response; magnetic field measurement; pulse width modulation; 25 micron; closed path; electromagnetic compatibility measurements; fluxgate magnetometer; frequency response; magnetic field measurement; premagnetizing field; pulse-width modulator; readout electronics; sensor design; Amorphous magnetic materials; Amorphous materials; Electromagnetic measurements; Frequency measurement; Magnetic cores; Magnetic field measurement; Magnetic materials; Magnetic sensors; Magnetometers; Readout electronics;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
