![]() ![]() By combining different wave types (longitudinal or transversal) and different legs of the waves’ paths, the instrument provides you with up to as many as 10 options for TFM modes (also known as wave sets)-for example, TTT, TLT, or TTTT. To produce a TFM image, the beam paths are synthetically regenerated by the acquisition instrument using the FMC data. With TFM, the concept of beam paths is not so straightforward. In a second-leg inspection, there is an extra bounce off the back wall. In a P/E first-leg inspection, the sound beam pulses from the probe, travels to the flaw, reflects off the flaw, and travels back to the probe. The beam paths are fairly easy to comprehend with pulse-echo. ![]() If you’re coming to TFM with a PAUT background like me, you are probably very familiar with the pulse-echo (P/E) technique. Having used and experimented with TFM for a while, I have some dos and don’ts to recommend to hopefully dispel some assumptions about this relatively new NDT method. TFM imaging relies on processing this large amount of FMC data, so it’s gained a reputation for being a slower technique, only practical for secondary, more targeted verification. Watch this short video to learn more about FMC and TFM basic principles FMC is a more comprehensive beam firing and receiving strategy that results in impressive volumes of data. It exploits multielement probe technology, but the data required for TFM is acquired using the full matrix capture (FMC) method. The total focusing method (TFM) is another leap forward in complexity. This resulted in phased array ultrasonic testing (PAUT), which is now a widely accepted and applied technique, although it requires more training than conventional UT to do it right. Improving both inspection performance and efficiency, advances were made using multielement probes and more powerful electronics and software. Early ultrasonic testing (UT) involved single-element transducers, a relatively simple technology that is still in use today and sufficient for many applications.Īs time progressed, so did the technology. Ultrasound has been used for industrial nondestructive testing (NDT) for around a century. Consultation Reception about Introduction.OEM Microscope Components for Integration.Semiconductor & Flat Panel Display Inspection Microscopes ▾.Aerospace/Wind Blade Inspection Scanners.Flaw Detectors / Phased Array Flaw Detectors ▾.Thickness and Flaw Inspection Solutions ▾.
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