UNDERWATER TRANSDUCER WITH DEPTH COMPENSATION

摘要

An underwater transducer in which a ring of ceramic elements vibrates radially in response to an applied voltage. Spacer elements formed of steel are placed between pairs of ceramic elements and used to couple the ring movement to convex diaphragms. Each diaphragm is formed with radially extending fingers which attach to the spacer elements. A water bladder within the ring forms a passive internal pressure compensation system.