Abstract
A laboratory setup is considered intended for special physics workshops and demonstration experiments of a lecture course in general physics as well for a study of elastic waves and magnetoelastic phenomena in ferromagnets in a standing wave field excited in a piezoceramic resonator. The acoustic signal and the magnetoelastic response are recorded simultaneously with a dual channel oscilloscope. The ferromagnet is magnetized using Helmholtz coils. The position of the nodes and antinodes in the standing wave of the electromagnetic signal along the length of the rod was determined with a scanning coil, and the wavelength, sound velocity, and elastic modulus were calculated from these data. The properties of standing waves a ferrite and a steel rod as well as on electrical steel tape 50 μm thick glued to a glass rod have been investigated.
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