ToFD Lite

Time of Flight Diffraction (TOFD) inspection employs two longitudinal wave (L-wave) angle beam transducers arranged symmetrically opposite facing each other, straddling the weld or base material under test. One probe acts like a transmitter of ultrasonic energy while the other probe receives the ultrasonic energy. The transducer, pulser, and amplifier characteristics are selected to generate as broad distribution of energy as possible over the material under test providing full weld coverage. A single-axis scan (that is, along the weld), with a position encoder records the position of the weld and enables the display of digital images in real time.

The ToFD-Scan Lite operates with various surface geometries including plates, small bore pipes, very large diameter pipes as well as restricted and difficult to reach areas.

In our opinion it also represents excellent value for money when compared with the time and cost of conventional radiography techniques that have been used historically in the past or more complex ToFD systems.