The effect of the coupling layer on sound transmission in ultrasonic testing with an inclined beam
Abstract
A theoretical model is developed as a basis for the description of the processes which take place during sound transmission. The theoretical analysis is supplemented with experimental tests. The investigation shows that the form of the transmitted pulse has a decisive effect on the transmission characteristics at the coupling layer. Conditions are discussed for an excitation with a Dirac delta pulse and for a harmonic excitation. Approaches for ideal coupling conditions are considered.
- Publication:
-
Materialpruefung
- Pub Date:
- September 1976
- Bibcode:
- 1976Mater..18..312E
- Keywords:
-
- Acoustic Attenuation;
- Automatic Test Equipment;
- Coupling;
- Nondestructive Tests;
- Sound Transmission;
- Ultrasonic Flaw Detection;
- Materials Tests;
- Polymethyl Methacrylate;
- Pulse Duration;
- Steels;
- Water;
- Wave Resistance;
- Instrumentation and Photography