The RollerFORM™ phased array wheel probe is used to inspect composites and other smooth-surfaced materials. An affordable and easy-to-implement replacement for full 2D encoding systems, the RollerFORM scanner is a viable alternative to immersion techniques.
The RollerFORM tire’s unique material provides high-quality, immersion-like ultrasonic testing. Minimal couplant and pressure are required to achieve excellent coupling and a strong signal, even in difficult scanning positions.
The RollerFORM scanner, combined with an OmniScan flaw detector, uses zero-degree ultrasonic beams for manufacturing and maintenance inspections. Common applications include delamination sizing and porosity quantification in composite core material, as well as wall-loss monitoring in metals.
The RollerFORM XL scanner’s wider tire and probe offer greater coverage for increased productivity and improved probability of detection (POD). For more attenuative materials, the 1 MHz version of the RollerFORM XL scanner has a larger aperture, which improves the ultrasound beam penetration for challenging applications such as wind blade spar cap and shear web bonding
Part Number Frequency |
Frequency
(MHz) |
Delay Line
Height (mm) |
Number of
Elements | Pitch (mm) |
Active Aperture
(mm) | Elevation (mm) |
Probe Casing
Model |
RollerFORM-3.5L64 | 3.5 | 25 | 64 | 0.8 | 51.2 | 6.4 | IWP1 |
RollerFORM-5L64 | 5 | 25 | 64 | 0.8 | 51.2 | 6.4 | IWP1 |
RollerFORMxl-1L128 | 1 | 25 | 128 | 1 | 128 | 13 | IWP2 |
RollerFORMxl-3.5L128 | 3.5 | 25 | 128 | 1 | 128 | 6.4 | IWP2 |
RollerFORMxl-5L128 | 5 | 25 | 128 | 1 | 128 | 6.4 | IWP2 |
Available with 2.5 m (8.2 ft) or 5 m (16.4 ft) long cables.
Can the RollerFORM scanner be used for applications other than aerospace or wind blade inspection? |
Can the RollerFORM inspect honeycomb panels?
The RollerFORM scanner can detect defects in the volume of CFRP skin that is 2 to 50 mm thick. It can also be used for near-side detection of disbonding between CFRP layers (thicker than 2 mm) and honeycomb structures for certain material combinations. However, the BondMaster bond tester remains the recommended method for disbond detection between CFRP and honeycomb and for delamination detection in CFRP layers thinner than 2 mm.
Can the RollerFORM be used for corrosion mapping inspection?
Yes. Even though the HydroFORM scanner remains the ideal choice for corrosion inspection, the RollerFORM scanner is a suitable option for corrosion applications that do not require optimum near-surface resolution (NSR) or high frequencies. Furthermore, the RollerFORM scanner can be particularly useful for quick checkups or when performing strip inspections on the longitudinal axis of pipes that are 4 in. OD or greater. The RollerFORM scanner has a 3 mm NSR in steel (as opposed to 1.5 mm for the HydroFORM) and has a maximum frequency of 5 MHz. The HydroFORM is also better suited for integration with full 2-D mapping scanners.
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