Ultrasonic Phased Array Imaging Testing by Total Focusing Method

The total focusing method (TFM) is a signal processing algorithm using data acquired in full matrix capture mode (FMC). All computations are achieved at a refresh rate up to 30 frames per second. In comparison with standard phased array techniques, this method can provide higher resolution, optimizing flaw location, measurement and characterization. Also, TFM can be used to image complex components. This article gives some typical cases of application of phased array TFM in industrial inspection and discussion on the relevant issues in order to provide references to domestic colleagues.