Interaction device has magnetoelastic of surface waves.

摘要

P the invention relates to devices of interaction of two signals to be treated by waves magnetoelastic. / p & & p & it relates to an interaction device comprising a substrate, magnetic, a thin magnetic film has a plane which is easy, two transducers piezoelectric disposed to the stiffener of the magnetic layer, and receiving respectively the two electrical signals to be treated. The signals applied are converted into an elastic wave surface, which are transmitted to the magnetic layer in the form of magnetoelastic waves which propagate in opposite directions. The device is subjected to a magnetic field packaging. The variations of the magnetization in the interaction zone are collected by a plate of detection. / p & & p & the invention is applicable, in particular, in order to obtain the product of convolution of the two signals to be treated. / p