| 摘要 |
An audio transducer is disclosed that has a piezoelectric driving element and a diaphragm configured as a flat, curvilinear plane. A lightweight, rigid bridge element connects the piezoelectric device to the diaphragm. Several bridge configurations are shown that emphasize or reduce various characteristics such as frequency response and vertical dispersion. Also, several diaphragm configurations are disclosed in which the diaphragms have as few as a single diaphragm sheet or as many as four sheets or more. In each case the diaphragm sheets are configured as flat, curvilinear planes. A resonance damper is provided comprising a resilient membrane having a plurality of resilient flaps. The damper is resiliently coupled to the piezoelectric device by arranging adjacent flaps to press against opposite sides of the piezoelectric device. |
