Magnetic field meter based on giant magnetoimpedance effect

The giant magnetoimpedance (GMI) effect in Co-based amorphous ribbon was investigated. In order to improve the properties of its magnetoimpedance characteristics, with respect to their application as a sensing element, the ribbon samples were subjected to various thermal and mechanical treatments. The sample, which exhibited the best performance, was utilized in a laboratory model of a magnetic field meter. The characteristics of the model constructed were measured revealing its high sensitivity and good thermal stability.