Title :
Measurement of low level DC magnetic fields using a synchronous demodulation technique
Author :
Ramos, Helena Geirinhas ; Girao, P. Silva
Author_Institution :
Inst. Superior Tecnico-DEEC, Univ. Tecnica de Lisboa, Portugal
fDate :
4/1/1993 12:00:00 AM
Abstract :
A simple, yet accurate, method for the measurement of low-level DC magnetic fields is proposed. Since a synchronous demodulation technique is used, only incremental field values are directly measured. Absolute values require knowledge of a reference value for the field. An implementation of the method for measuring the magnetic field in soft magnetic materials is also presented
Keywords :
demodulation; magnetic field measurement; DC magnetic fields; calibration; measurement; reference value; soft magnetic materials; synchronous demodulation; Coils; Current measurement; Demodulation; Force measurement; Magnetic anisotropy; Magnetic field measurement; Magnetic materials; Perpendicular magnetic anisotropy; Soft magnetic materials; Testing;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
