magnetic wires;
magnetoimpedance;
torsion impedance;
D O I:
10.1016/S0304-8853(02)00542-5
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
In this work we report some results concerning the torsion impedance of amorphous Co-68.1 Fe4.4Si12.5B15 wires in the as-cast state, and after a stress annealing treatment. The influence of the drive current amplitude and frequency is also studied for these samples. A sensitivity to the applied torsion up to 17.6%/rad m is obtained for the annealed wire. The magnetoimpedance response of both types of samples gives evidence to the difference in their domain structure. (C) 2002 Elsevier Science B.V. All rights reserved.