Angle Transducer : A transducer that transmits or receives the acoustic energy at an acute angle to the surface to achieve a special effect such as the setting-up of shear waves in the part being inspected. (RP 2X)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}