| 摘要 |
<p>The piezoelectric keyboard 1 is intended to allow a more secure and compact embodiment, without the need to provide cavities for the pressure-sensitive elements; it consists of a compact or layered sheet 2, 3, having on one of the surfaces a peripheral formation of piezoelectric elements 6, with interlocking electrodes 12, 13 distributed in opposite pairs and able to generate and/or receive an elastic undulating signal; the elements 6 being connected to an oscillatory circuit; its use lies in the electronic and electromechanical industries in general.</p> |
