Focused Probes for Piping
A focused probe can be used in immersion testing for piping. The curved probe will counteract the effect of the curvature on beam spread, therefore, enhancing the sensitivity.
- Without the acoustic lens, most of the ultrasound wave remains in the pipe and very little comes back to the probe. Sensitivity is low
- With the acoustic lens, the ultrasound wave is concentrated on the top of the pipe ensuring that most of it comes back to the probe. Sensitivity is high
In a curved probe, the element of the probe can also be curved allowing for the use of flat wedges.