DOI: 10.36347/sjet.2018.v06i04.005

Pages: 139-146

In this paper the mathematical model of an electromagnetic type electroacoustic transducer in the excitation (radiation) mode of ultrasonic waves in metals is determined. To solve the dynamic magneto elastic problem, the method of successive approximations is proposed. This method is based on the assumption that the ΔE-effect is small (less than 20%). It is shown that zero approximation to the exact value of the displacement vector components of the ferrimagnet material particles, allows to preserve in solutions the information about design and geometric parameters of the alternating magnetic field source. The first approximation gives corrections that may decrease the amplitude values of the displacement vector components of the metal material particles. In addition, the error determining displacement vector components does not exceed the biquadratic of the magneto mechanical coupling coefficient, that is, one - a maximum two percent.