What is the maximum number of elements typically found in a high-end phased array probe?

In high-end phased array probes, the maximum number of elements can reach up to 128. This allows for greater flexibility in scanning and enhances the ability to produce high-resolution images of the material being inspected. With more elements, the probe can achieve better spatial resolution and finer control over the beam direction and focus. This capability is crucial for detecting minute flaws and providing detailed assessments in critical applications like aerospace and nuclear industries.

In contrast, probes with fewer elements may limit the resolution and versatility necessary for complex inspections, making them less suitable for demanding scenarios. Probes with 16, 32, or 64 elements do not provide the same level of performance that is achievable with a 128-element probe, thereby affirming the significance of having a higher number of elements for high-end applications in phased array ultrasonic testing.