发明名称 Double plate piezoelectric transducer - has two small piezoelectric plates joined together by adhesive, reducing total impedance
摘要 <p>The piezoelectric transducer has a conducting element placed between two piezoelectric elements. Each element consists of two small plates, each with two large surfaces on which electrodes are provided. Each plate has a specified impedance. An adhesive layer joins surfaces of the two small plates, and provides electrical and mechanical contact between the surfaces of the plates, so that an element impedance is produced, which is smaller than the specified plate impedance.</p>
申请公布号 FR2378419(A1) 申请公布日期 1978.08.18
申请号 FR19770038898 申请日期 1977.12.22
申请人 MOTOROLA INC 发明人
分类号 H04R17/00;(IPC1-7):04R17/00 主分类号 H04R17/00
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