V(Z) CURVE SYNTHESIS USING 2 ULTRASONIC TRANSDUCERS

Traditionally V(z) curves are generated by acoustic microscopes. Howev er, because of the high costs of the commercially available acoustic m icroscopes, their use is rather limited. In this paper it is shown how V(z) curves, which contain quantitative information about the materia l under inspection, can be generated using two ultrasonic transducers instead of an acoustic microscope. A theoretical analysis is given to synthesize V(z) curves of orthotropic plates by this technique. A basi c mechanics problem of the reflection of plane waves by an orthotropic plate immersed in a fluid is solved for this purpose. Theoretically s ynthesized V(z) values are compared with experimental results.