DEVICE FOR EXCITATION OF PIEZOELECTRIC ACOUSTIC TRANSDUCERS Russian patent published in 2019 - IPC G01N29/34 

FIELD: physics.

SUBSTANCE: use for excitation of piezoelectric acoustic transducers. Summary of invention consists in the fact that device for exciting piezoelectric acoustic transducers consists of an electric oscillation generator, the output of which is connected to a series inductive capacitive oscillatory circuit, to the capacitance of which a piezoceramic transducer is connected, at that, to the output power amplifiers of the driving generator of rectangular electric oscillations identical electrical circuits are connected, consisting of series-connected parallel inductance-capacitance oscillatory circuit tuned to the second harmonic of electric oscillations of the master oscillator, series inductance-capacitance oscillatory circuit, design capacity of which is replaced by the sum of internal capacitors, connected to each other by a group of piezoelectric acoustic transducers, having equal resonant frequency with frequency of electric oscillations of the master oscillator, between which and power amplifiers phase changers are included, which enable to scan acoustic vibrations in vertical and horizontal planes.

EFFECT: possibility of maximally full use of energy of series inductive-capacitance oscillatory circuit for excitation of group of piezoelectric acoustic transducers, as well as increase of device efficiency.

1 cl, 1 dwg