Simulation of Process of Reproducing the Measuring Signal of a Magnetostrictive Displacement Transducer on Ultrasonic Torsion Waves for a Triangular Excitation Pulse

Abstract

In the works known to the authors, a rectangular current pulse is most often used to model the process forming a measuring signal. As from the point of view of the authors it is possible to use other waveforms, so the article examines the influence on the measuring signal magnetostrictive transducer displacements in ultrasonic waves torsion pulse triangular shape. Research carried out by the work take into account such factors as the geometrical dimensions waveguide, the geometrical and magnetic parameters of the magnet, serving as a source of longitudinal magnetic field parameters solenoid. Analysis and simulation of the reproduction signal under the influence triangular pulses were performed using the superposition principle, according to which it is possible to determine the measuring signal separately from the axial component waveguide magnetization and the circular component of the magnetization and then sum it up. In the course of research, it was concluded that the triangular excitation pulse leads to a violation symmetry measuring signal. The reliability obtained theoretical results is confirmed by experimental studies. The results obtained can be used in the design various magnetic systems and in particular magnetic systems magnetostrictive displacement and tilt transducers.