New Concepts for Characterization of Ultrasonic Transducers

NDE techniques are widely used by jet engine manufacturers to guarantee the quality of materials and critical parts, such as fan, compressor and turbine disks. New “fail-safe” concept of structural design, which assumes presence of defects below a certain size, requires not only detection of flaws but also their evaluation in order to determine if they could lead to a catastrophic rupture of the part during its life. So, NDE methods need to be reliable and reproducible