Mathematical model of magnetostrictive linear displacement transducer

This paper presents a mathematical model of a magnetostrictive linear displacement transducer. Magnetostrictive displacement transducers on torsional waves are considered. The developed mathematical model is built using the COMSOL Multiphysics software package. This model takes into account all physical phenomena, such as mechanics (mechanical tension in the waveguide, the change in the physical size of the waveguide and its twisting), electricity (the flow of a current pulse through a magnetostrictive waveguide), magnetism (the magnetic field of a permanent magnet, the magnetic field created by the waveguide through which the excitation current pulse flows).