Abstract:
"Magneto Impedance, as a promising alternative in detecting magnetic fields, has
undergone rapid development in altering the electrical impedance experienced by
conductors when exposed to magnetic fields. This research involves the design and
implementation of a magneto impedance sensor system utilizing the Joule heating
method. The sensitivity of this magneto impedance sensor system reaches
approximately picoTesla, generating magnetic fields of around 100 pT. The success of
the sensor system's design is evaluated based on its response to magnetic fields
approaching the Earth's magnetic field scale, approximately 50 μT. This magneto
impedance sensor is crafted using a core made of Vitrovac 6025Z, with a thickness of
0.04 mm and a width of 0.34 mm. The sensor's core experiences 6 varying Joule heating
currents, ranging from 0 mA to 540 mA. The sensor system is subjected to testing at
frequencies 100 kHz for each current variation. The magneto impedance sensor system
generates output in the form of impedance and magnetic fields. The output values will
be used to determine the magneto impedance ratio.
