DMTA-20073-01EN, Rev. C, November 2015
Introduction
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The RollerFORM is an phased array wheel probe designed for encoded scanning
inspection of composite and other smooth materials.
The unique tire material of the RollerFORM has been specifically developed to
guarantee high-quality, immersion-like ultrasonic testing. Minimal couplant and
pressure is required for the RollerFORM to provide excellent coupling and a strong
signal, even in difficult scanning positions.
In addition to providing exceptional coupling, the tire of the RollerFORM’s acoustic
wheel is made of a unique material that closely matches the acoustic impedance of
water. This design feature permits the efficient transmission of energy to the part
without unwanted echoes, obtaining an optimum 1 mm (0.04 in.) near-surface
resolution in composites when using the 5 MHz phased array probe model. The
3.5 MHz phased array probe model is better suited for certain thicker, more
attenuating materials. Since the tire is transparent, you can easily identify the
presence of air bubbles or contaminants within the liquid chamber.
With its integrated indexing button, the ergonomic RollerFORM allows you to map
the surface of an inspected material by acquiring multiple one-line C-scans and
combining them together in real time in the instrument. The built-in laser guide
facilitates straight and precise one line scans.
The light weight of the RollerFORM makes it highly maneuverable and convenient for
performing upside-down surface inspections on the underside of objects such as
airplane fuselages and wings.
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