COMPACT ULTRASONIC DEVICE COMPRISING AN ANNULAR ULTRASONIC MATRIX ELECTRICALLY CONNECTED IN PERIPHERY WITH A FLEXIBLE PRINTED CIRCUIT BOARD, AND A METHOD OF ASSEMBLING SUCH A DEVICE Russian patent published in 2020 - IPC B06B1/06 

FIELD: instrument engineering.

SUBSTANCE: invention can be used for ultrasonic inspection of objects. Essence of the invention consists in the fact that the ultrasound device comprises an ultrasonic transducer containing a circular ultrasonic matrix, which is formed, at least partially, by a plurality of concentric annular electrodes provided on a first surface of the piezoelectric layer, wherein ground surface is provided on piezoelectric layer second surface; a peripheral support ring surrounding at least a portion of the ultrasonic transducer; flexible printed-circuit board containing: elongated flexible segment; distributing segment, which contacts with at least part of peripheral support ring so, that plurality of conducting paths, passing through said elongated flexible segment are routed through said distribution segment to corresponding contact pads located at different points on said peripheral support ring; wherein each annular electrode is electrically connected to corresponding contact pad; and wherein at least one conductive path of said flexible printed circuit board is a grounded conductive path which is electrically connected to said grounded electrode.

EFFECT: reduction of cross-sectional dimensions of the device.

20 cl, 29 dwg