Title :
AC field-induced rotation of magnetostrictive wires: operating principle for field positioning microrotor sensors
Author :
Castaño, Fernando J. ; Vázquez, Manuel ; Óvári, Tibor-Adrian ; Chen, Du-Xing ; Hernando, Antonio
Author_Institution :
Inst. de Magnetismo Aplicado, CSIC, Madrid, Spain
fDate :
9/1/2000 12:00:00 AM
Abstract :
The effect of a DC magnetic field on the rotation of Fe77.6 Si7.5B15 and Co75Si10B 15 amorphous wires under an axially applied AC field is investigated. The rotation frequency mainly decreases monotonically with increasing the DC field, Experimental results are exploited to propose a new family of field positioning microrotor sensors
Keywords :
amorphous magnetic materials; cobalt alloys; ferromagnetic materials; internal stresses; iron alloys; magnetic domains; magnetostriction; microsensors; silicon alloys; AC field-induced rotation; Co75Si10B15; Fe77.6Si7.5B15; amorphous wires; axially applied AC field; field positioning microrotor sensors; magnetostrictive wires; rotation frequency; Amorphous magnetic materials; Amorphous materials; Coils; Frequency; Iron; Magnetic fields; Magnetic resonance; Magnetic sensors; Magnetostriction; Wires;
Journal_Title :
Magnetics, IEEE Transactions on
