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NDT.net Issue - 2016-07 - NEWS
NDT.net Issue: 2016-07
Publication: e-Journal of Nondestructive Testing (NDT) ISSN 1435-4934 (NDT.net Journal)

Sonotron NDT announces the new release of the ISONIC ROVER Technique application for the PA inspection of complex geometry parts through raster (XY-) scanning

Sonotron NDT76, Rehovot, Israel

ISONIC ROVER Inspection SW package for ultrasonic Phased Array (PA) flaw detectors of ISONIC series (ISONIC 2009, ISONIC 2010, ISONIC 3510) relates to the inspection of the complex geometry parts such as turbine blades, pipe-to-pipe welds, and the like through XY-scanning. In such parts the cross-sectional shape varies along the scanning trace so the true-to-position material-shape-accommodation of the cross-sectional coverage focal laws is performed by the instruments in real time whilst manipulating PA probe over them so for every point of the probe trace the focal laws are accommodated dynamically in order to provide the complete true-to-geometry cross sectional coverage

To follow the ISONIC Roverscan technique the 3D-model (CAD, Parasolid, etc) of the part to be tested is used by the instrument in the following way:

  • At the pre-inspection stage the 3D-model of the part is “implanted” into the instrument's memory as a template
  • At the scanning stage the coordinates of the PA probe manipulated over the part are taken by the instrument through the appropriate encoding means and the accommodation of the focal laws is performed automatically in real time at every point of the probe trace:
    • the corresponding true-to-location cross-sectional scan plan (ray tracing) is generated and implemented so the cross-section of the part under the probe is “filled” with the ultrasonic beams accordingly providing the needful coverage
    • the true-to-geometry imaging of the cross-section is provided so on receiving an echo from an obstacle either geometry or internal discontinuity (imperfection) the reflector is imaged in its real position through settling of the appropriate mark on the image
    • all cross-sectional views obtained during the scanning are pushed into the 3D-template in the instrument’s memory and stored along with the corresponding raw data (A-Scans) sets
    • 100% raw data capturing is provided
On completion of the scanning the 3D-image of the part with the imperfections found is generated

The latest release of ISONIC ROVER Inspection SW package is fully compatible with the recently introduced VAUT technology (Video Aided UT)

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