METHOD OF AUTOMATED ULTRASONIC INSPECTION OF LARGE-SIZE PRODUCTS WITH SHAPE OF ROTATION BODIES Russian patent published in 2015 - IPC G01N29/04 

FIELD: instrumentation.

SUBSTANCE: sensitivity of NDT equipment is adjusted in the manual mode, it is checked in the automatic mode, then placed on an object table of the unit of inspected product, it is centred, the ultrasonic converter is mounted on the product surface in the zone of inspection beginning, switching of automatic verification mode, scanning by the product surface converter along the spiral, input - reception of acoustic oscillations by a contact and slot method using converters with a local bathtube in a product and in references at adjustment by them and check of the equipment sensitivity, and also fixation of existence or absence of defects. For inspection of dome-shaped products with spherical surfaces, the converter is moved along a bow-shaped trajectory, the converter scans the product surface along a convex spiral of Archimedes, and at detection of defects their angular coordinates are read out in two mutual and perpendicular directions.

EFFECT: possibility of automated ultrasonic quality control of dome-shaped products with spherical surfaces.

2 dwg