Focussed ultrasonic probes for contact inspection
Abstract
This paper discusses the development, design and application of focussed probes for ultrasonic contact inspection. The use of the axicon lens enables the production of very narrow, long range sound beams in both longitudinal straight beam and shear wave angle beam techniques. Such small diameter sound beams are useful in high resolution mapping of wall thickness, and in the detection, evaluation, and accurate sizing of a wide variety of defects.
- Publication:
-
Materials Evaluation
- Pub Date:
- September 1980
- Bibcode:
- 1980MatEv..38...53M
- Keywords:
-
- Acoustic Propagation;
- Focusing;
- Lens Design;
- Ultrasonic Tests;
- Echoes;
- Longitudinal Waves;
- S Waves;
- Ultrasonic Wave Transducers;
- Instrumentation and Photography