THE USE OF THE OFF-DIAGONAL MAGNETOIMPEDANCE PHENOMENON TO BUILD SENSORS OF WEAK MAGNETIC FIELDS AND CURRENTS

Abstract

In the present work, the off-diagonal sensor design was advanced by utilising a complex waveform excitation produced by a microcontroller and applied to a multiple wire magnetoimpedance element. For optimised excitation the field resolution of about 70 mV/Oe was achieved. The concept of microcontroller driven sensor element could be attractive for the development of intellectual sensors.

Keywords

• off-diagonal magnetoimpedance
• magnetic field sensor
• amorphous microwire
• pulse excitation