What is the impact of using up to 128 element probes in a phased-array system?

Using up to 128 element probes in a phased-array system significantly improves the accuracy of flaw detection. The increased number of elements allows for more detailed and nuanced control over the sound beam. Each element can be individually activated to steer and focus the beam, resulting in improved spatial resolution and sensitivity when inspecting materials for flaws such as cracks or inclusions.

With more elements, the phased-array system can achieve finer angular resolution, which enhances its ability to detect smaller flaws or those positioned at challenging angles. Additionally, this configuration can improve the signal-to-noise ratio, leading to clearer and more defined indications of any defects present. This capability is particularly advantageous in complex geometries or inapplications where high precision is required.

While the use of more elements can indeed result in larger equipment, limit the range of testing, or necessitate calibration, the primary benefit highlighted here is how it directly correlates with improved detection accuracy.