ACOUSTIC MICROSCOPE Russian patent published in 2021 - IPC G01N29/06 

FIELD: physics.

SUBSTANCE: invention is used for the study and analysis of materials using ultrasonic vibrations. The essence of the invention lies in the fact that the scanning acoustic microscope contains a transmitting acoustic element, including a sound conductor, a spherical acoustic lens, a receiving acoustic element, a liquid cell installed between the transmitting and receiving elements, as well as a system for scanning the object under study and restoring its image on a video monitoring device, and in the focusing area of acoustic lens, a meso-sized particle is installed with a characteristic size not exceeding the transverse size of the focusing area and not less than λ / 2, where λ is the wavelength of the radiation used in the medium, with the speed of sound in the material of the particle relative to the speed of sound in the environment, lying in the range from 0.5 to 0.83, while directly on the shadow side of the mesoscale particle is located the second mesoscale particle, which has a common optical axis with the first particle and with a characteristic size no more than the characteristic size of the first mesoscale particle, but not less than the transverse size of the formed focusing region by the first meso-sized particle.

EFFECT: invention is aimed at improving the resolution of acoustic imaging systems of the objects under study.

1 cl, 2 dwg