In order to test the crack of the stroke oar leafs crossbeam of a certain helicopter, we need to design a special transverse wave probe.

Using a new material, the transverse wave Angle beam probes in ultrasonic testing of welds for steel space grid structures with welded joints are made.

A method is presented for measuring the shear-wave attenuation of solids by using propagation of ultrasonic wave in a wedge block.