发明名称 Membrane with a High Resistance Against Buckling and/or Crinkling
摘要 A membrane ( 2 ) for an electroacoustic transducer ( 1 ) is disclosed, wherein a thickness (d) of said membrane ( 2 ) and an average Young's modulus (Eavg) of said membrane ( 2 ) are chosen in such a way that the critical load (Fbc), which causes the membrane ( 2 ) to buckle and/or crinkle, is increased compared to a reference membrane. The reference membrane made of Polycarbonate has the same shape, dimension, and stiffness in its direction of movement (MOV) as said membrane ( 2 ). According to the result of investigations on buckling and/or crinkling, said effect occurs with different critical buckling/crinkling loads for membranes of the same shape and dimension, but made of different materials, even when the stiffness of the membranes in their direction of movement-and hence their resonant frequency-is identical.
申请公布号 US2008202845(A1) 申请公布日期 2008.08.28
申请号 US20060908288 申请日期 2006.03.01
申请人 NXP B.V. 发明人 KLEIN ERICH;FRASL EWALD;WINDISCHBERGER SUSANNE
分类号 H04R7/02 主分类号 H04R7/02
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