Olympus introduces the RollerFORM™, a new phased array wheel probe designed to address the inspection of composites and other smooth-surfaced materials, such as those commonly used by the aerospace industry. An affordable and easy-to-implement replacement for full 2-D encoding systems, the RollerFORM also offers a viable alternative to immersion techniques. 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.