ScanMaster UT/X: Measuring Large Spotweld Diameters

Wuppertal, Germany, 21 February 2022

Probes for Wall Thickness Measurement

In contrast to spot weld inspection by means of conventional ultrasound, the phased array based UT/X not only allows different-sized spots to be inspected but also measurement with a single probe.
With conventional testing, a nominal welding lens diameter is compared with the defined sonic beam diameter of the probe.
Different probes must be used for different lens diameters. Measurement of the spot does not take place.
With PA-based testing, 61 elements are arranged in the probe in the form of a matrix, allowing to measure spotwelds with a diameter of up to 9 mm.
For many aluminium sheet joints, weld spots with considerably larger diameters also occur. A probe with larger individual elements and a diameter of 16 mm was developed for this purpose. Of course, either a fixed delay line (Plexiglas) or a flexible coupling surface (membrane with water column) can be used.

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About KARL DEUTSCH

Since its foundation in 1949, the owner-managed company KARL DEUTSCH has been engaged in the development and manufacture of equipment for non-destructive material testing. Mobile testing devices, stationary testing systems, sensors and chemical crack detection media for the testing methods UT, MT and PT are manufactured in two plants in Wuppertal by 130 motivated employees. Another 20 employees in foreign offices and a worldwide dealer network support the export business, which accounts for more than 60% of the turnover. Characterized by continuous innovation and reliability of the products, the brands ECHOGRAPH, ECHOMETER, LEPTOSKOP, DEUTROFLUX, FLUXA, KD-CHECK and RMG are internationally known today.