[4B2] Plane wave imaging (PWI): the benefits of total focusing method (TFM) at high speed
P Hillman, F Reverdy and G Maes
Eddyfi Technologies, UK
Presented by J Poirier
Advanced focusing techniques such as full matrix capture (FMC) in conjunction with the total focusing method (TFM) have become well established in non-destructive testing (NDT) applications in recent years with the advancement in processing on-board portable technology. Plane wave imaging (PWI) is a further step in the firing sequence, firing multiple element apertures in emission while storing elementary A-scans to be used for TFM image processing. This technique is now deployable on portable equipment and brings several application benefits, such as faster acquisition speeds and improved signal-to-noise ratio (SNR), for many challenging use cases. This presentation will describe the PWI technology, how it differs from FMC-based imaging and what benefits it can bring. Practical examples will be shown, comparing real-world results with various practical examples that highlight the main differentiators for NDT operators.
Keywords: phased array, TFM, FMC, PWI.
Keywords: phased array, TFM, FMC, PWI.
