The application of holographic interferometry to dynamic studies of the operation and behavior of acoustic transducers in water

Hololographic Interferometry has been shown to be a very successful method for the testing of the behavior of the materials and structure of acoustic transducers operating in air. Specific geometries and symetries in time-average holographic interference fringe patterns map the ideal behavior of transducers by defining characteristics of motion and displacement. These techniques have been extended to the study of the unique dynamics of acoustic transducers operating in their intended water medium. Successful comparisons of the differences between motion characteristics in air and water are anticipated to be of great value in defining the true dynamic behavior of the transducer structures as well as their component materials.