Magnetostriction and magnetostrictive materials for sensing applications

In this paper, after an introduction to the basics of magnetostriction and magnetostrictive materials, some of their uses and applications are presented. New position sensors based on the magnetostriction effect and the magnetostrictive delay-line technique are presented with respect to their applicability in engineering systems. It is also shown that the magnetostriction effect can be used in measuring the M(H) and lambda(H) functions as well as their uniformity response. Finally, the so-called magnetoelectric effect is discussed as one of the major future trends of magnetostriction and magnetostrictive materials for sensing applications. (c) 2007 Elsevier B.V. All rights reserved.