Electromagnet type transverse wave electromagnetic acoustic transducer

The invention discloses an electromagnet type transverse wave electromagnetic acoustic transducer. The transducer comprises an E-shaped silicon steel magnet yoke, a magnet exciting coil and a butterfly coil. The excitation coil is wound on the center pole of the E-shaped silicon steel magnet yoke to form an electromagnet, the butterfly coil is placed on the surface of a steel plate to be detected, and the center pole of the electromagnet covers the position over the center rectangular area of the butterfly coil to provide a bias magnetic field for the butterfly coil. Based on Lorentz force and magnetostriction mechanisms, simulation proves that the transducer can generate transverse waves, and the energy of the generated transverse waves is far greater than that of longitudinal waves; and experiments prove that the transducer can realize single integrated wave excitation in the thickness direction of the steel plate, the purity of transverse waves is improved, and signal analysis is easy. The developed electr