Real-Time Portable Ultrasonics
Fig.1 Rapidscan 2 wheel probe
Fig.2 The Andscan R-Θ scanning arm
The Rapidscan 2 is able to produce auditable images of a wide range of flaws and material conditions found in large area composite structures. These include impact damage, porosity, delaminations and fibre wrinkles. The ability to operate at a variety of frequencies allows interrogation of features and defects at various depths within the structure. The system incorporates an image stitching feature that joins a number of inspection images together to permit the assessment of large areas.
Another piece of equipment for area scanning is the DSL Andscan system which has a unique manually manipulated R-? scanner arm. (shown in Fig.2). In this, the scanner base incorporates encoders that register the position and orientation of the probe head. However, if the probe is held stationary and the scanner base is moved, this movement is also registered. Thus, by first scanning the complete area that can be covered within the limits of the arm for one base position and then moving the base to new locations, a large area can be fully mapped.
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