发明名称 Transducer plate for electro-acoustic transducers
摘要 The invention relates to a transducer plate, in particular for piezo-electric telephone receivers, with a piezo-ceramic element (6) provided with electrodes (2, 3) on both sides. The object of the invention is to compensate for the temperature dependence normally present in thicker ceramic elements. This object is achieved in that a piezo-ceramic element (6, 7) provided with electrodes (2, 3, 4, 5) on both sides is fitted in interlocking fashion on both sides of the transducer plate (1), and both piezo-ceramic elements are electrically connected in parallel. For use in telephone receivers in telephone systems. <IMAGE>
申请公布号 DE3309851(A1) 申请公布日期 1984.09.27
申请号 DE19833309851 申请日期 1983.03.18
申请人 SIEMENS AG 发明人 MARTIN,ERWIN,DIPL.-ING.
分类号 G10K9/122;H01L41/047;(IPC1-7):04R17/00;01L41/04 主分类号 G10K9/122
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