J. Phys. IV France 08 (1998) Pr2-763-Pr2-766
Magnetoelastic sensor for signature identification based on mechanomagnetic effect in amorphous wiresA. Zhukov1, 2, M. Vázquez3 and J.M. García-Beneytez3
1 Permanent address : Institute of Solid State Physics of Russia Academy of Sciences, Chernogolovka, 142432 Moscow, Russia, and Amo Tec, B-d Dacia 15, Kishinev, Moldova
2 Present address : Universidad del Pais Vasco, Facultad de Ciencias Quimicas, Departamento de Fisica de Materiales, Barrio de Alza s/n, 20071 San Sebastian, Spain
3 Instituto de Magnetismo Aplicado, RENFE-UCM and Instituto de Ciencia de Materiales, CSIC, P.O. Box 155, 28230 Las Rozas, Madrid, Spain
Magnetic response of amorphous wires with different magnetostriciton constant under the effect of time-dependent tensile stresses of different shape has been systematically studied. The observed effect is explained as a consequence of the reversible changes of the domain structure under the effect of applied stresses. An application of this mechano-magnetic effect is employed for identification of signature.
© EDP Sciences 1998