Adjustable acoustic mirror

摘要

An ultrasonic inspection element and method are provided for improved ultrasonic inspection of curved entry surface parts (28). The transducer element (24) may be spherically focused, or have a flat surface. The transducer/mirror element combination (12, 24) is used to inspect through a concave or convex surface (26). A mirror element (12) shapes the sound beam relative to the shape of the curved surface (26) of the part (28) being inspected. Curvature of the mirror (12) is adjusted with a screw, rod, voltage modulator, or other suitable adjustment mechanism. An alternative mechanism includes multiple "quick disconnect" interchangeable curved mirror elements. <IMAGE>