发明名称 P.E. TRANSDUCER PLATE
摘要 The invention relates to a transducer plate for electro-acoustic transducers, such as used in telecommunications technology, having a carrier plate and a ceramic plate arranged on a carrier plate. The invention teaches a transducer plate which is dimensioned so that it can be used in a microphone, a receiver or a piezoelectric VF ringing device despite the different voltage response factors required for each application. The following dimensions should preferably be used: transducer plate diameter (02)=43 mm; ceramic plate diameter (01)=30 mm; transducer plate thickness (d)=150 microns; and ceramic plate thickness (1)=90 microns.
申请公布号 AU1850383(A) 申请公布日期 1984.03.08
申请号 AU19830018503 申请日期 1983.08.29
申请人 SIEMENS A.G. 发明人 ERWIN MARTIN
分类号 H04R1/22;H04R17/00;H04R17/10 主分类号 H04R1/22
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