TPT May 2023

INSPECTION, TESTING & QUALITY CONTROL

Tube and pipe surface flaw detection using high-speed laser line triangulation LASERLINC’s new FlawSense

produces a 3D point cloud image with informative, actionable flaw data that can be manipulated for further analysis. FlawSense can detect surface defects down to five microns with a claimed ten times-better resolution than camera based systems. LaserLinc also says that FlawSense provides more accurate measurements of product diameter and ovality than laser micrometers and camera vision technology. The system is suited to applications involving the measurement of high specification, high-value products, such as subterranean and undersea fibre optic cables; complex armoured cable; power cable; building wire; high-pressure hose for automobile and aerospace; and other demanding applications.

“Instead, FlawSense is a high performance inspection system that uses the most advanced laser triangulation technology, and it is significantly more accurate and capable than conventional inspection systems.” Traditionally, manufacturers have attempted to use a variety of measure- ment techniques to detect flaws, but these present problems such as the limited measurement points per sensor, inability to measure the full contour of the product, presence of text and labels that create false positives, and blind spots that prevent the detection of pits and slits in the surface. In some cases, these systems offer limited visualisation capabilities, making it difficult to verify what was detected. FlawSense digitises thousands of individual measurement points around the contour of the product to reveal the smallest surface anomalies. It then

dimensional surface flaw detection system uses high-speed laser line triangulation to perform 360° in-process inspection of wire, cable, pipe and tube products, regardless of product orientation in the measurement field. The manufacturer states that FlawSense precisely detects lumps, gels, pits, slits and other surface defects that cannot be identified by conventional laser micrometers, lump and neckdown detectors, and camera-based systems. Manufacturing personnel can review the defects later in 3D for deeper, immersive analysis. Chad Walker, product manager at LaserLinc, said: “FlawSense is not a laser micrometer; it is not a camera or vision system; and it’s not a lump and neckdown detector, although it can perform the same functions as these technologies.

LaserLinc www.laserlinc.com

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