ULTRASONIC TOMOGRAPHY DEVICE Russian patent published in 2023 - IPC G01N29/04 

FIELD: ultrasonic non-destructive testing.

SUBSTANCE: invention is related to visualization of results of ultrasonic non-destructive testing and can be used in ultrasonic testing of a product with a flat and curved outer surface and one-sided access, for example, crankshaft necks of internal combustion engines, pipelines or pipelines with a conical surface. The proposed device for ultrasonic tomography contains an antenna array installed on the test object with n receiving-transmitting elements, each of which is connected to the output of the corresponding pulse generator and to the input of the corresponding chain of series-connected amplifier and analog-to-digital converter. The output of each of the n specified chains is connected to the corresponding input of the sample memory block, the number of outputs of which N is determined by the formula: N=n⋅(n+1)/2. The outputs of the sample memory block are connected to the corresponding inputs of the computing block, which is connected to the storage memory block and to the display via the image memory block. The synchronization inputs of each pulse generator, sample memory block, computational block and image memory block are connected to the corresponding outputs of the synchronization block. The antenna array is made flexible to be placed close on a flat or curved outer surface of the test object located in the immersion bath. On the reverse side of the flexible antenna array, an acoustic sensor is installed so that it is immersed in the immersion liquid, and the flexible antenna array is completely located in its acoustic field. The acoustic sensor is connected to an amplifier, the output of which is connected to the first input of the comparator, the second input of which is connected to a reference voltage source. The output of the comparator is connected to the computing unit.

EFFECT: control of products not only with flat, but also with curved outer surfaces.

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