TRANSDUCER FOR CONVERTING ACOUSTIC VIBRATIONS INTO ELECTRICAL OSCILLATIONS, AND VICE VERSA, IN THE FORM OF A DIAPHRAGM COATED WITH AT LEAST ONE LAYER OF A PIEZO-ELECTRIC MATERIAL

摘要

A microphone that includes a housing in which a flexible diaphragm comprising at least one layer of piezoelectric material is secured by means of a resilient ring surrounding the periphery of the diaphragm. A flat disc composed of an acoustic damping material is mounted directly on the center of the diaphragm by means of an adhesive substance.