METHOD OF MAKING MAGNETOSTRICTIVE ACOUSTIC TRANSDUCER FOR NONDESTRUCTIVE TESTING Russian patent published in 2024 - IPC H04R15/00 

FIELD: acoustic electromechanical transducers.

SUBSTANCE: invention can be used for production of magnetostrictive acoustic transducer. Essence of the invention consists in the fact that a magnetostrictive plate is made, excitation and magnetisation windings are placed on said plate, wherein the excitation and magnetisation windings are formed by the printed conductors of the at least one flexible printed circuit board, wherein the magnetostrictive plate is arranged to abut and attach to the surface of said at least one flexible printed circuit board, wherein printed conductors are located on different layers of at least two-layer flexible printed circuit board, wherein printed conductors on different layers are connected to each other by means of plated holes, and printed conductors on different printed circuit boards are connected by soldering opposite each other contact pads located on different printed circuit boards, wherein printed conductors of said excitation and magnetisation windings arranged on different electroconductive layers of flexible printed-circuit board are interconnected to form a closed circuit of excitation and magnetisation windings around magnetostrictive plate.

EFFECT: high efficiency of making a magnetostrictive acoustic transducer for non-destructive testing.

1 cl, 3 dwg