Harmonic Spectrum Filtration for Current Sensor Measurements

Abstract

Here is presented a data processing methodology for current sensor output signal analysis based on frequency harmonics content. Hall Effect sensors measurement setup is used for data acquisition. Measured data have been processed by fast Fourier transformation algorithm in order to decompose frequency content of sensor output signal. Harmonic spectrum could be used for sensor accuracy enhancement where magnetic core saturation is distinguished by real frequency content of primary current.