公开(公告)号：US10038958B1

公开(公告)日：2018-07-31

申请号：US14746149

申请日：2015-06-22

申请人： Lockheed Martin Corporation

发明人： Todd C. Gloo ,  James D. Weigner ,  Raymond Porzio

IPC分类号： H01L41/08 ,  H04R17/00 ,  H01L41/083

CPC分类号： H04R17/00 ,  H01L41/083 ,  H01L41/183 ,  H01L41/187 ,  H01L41/27 ,  H01L41/273 ,  H01L41/277 ,  H01L41/29 ,  H01L41/293 ,  H01L41/297 ,  H01L41/337 ,  H01L41/338 ,  H03H3/02 ,  Y10T29/42 ,  Y10T29/49126 ,  Y10T29/49147 ,  Y10T29/49155

摘要： A tape cast transducer element assembly comprises a tape cast transducer element including a multi-layer piezoelectric stack diced from a sintered piezoelectric body formed from a plurality of thin film tape layers, the film thin tape layers sintered to produce a final density. A conductive film coats select ones of the thin film tape layers such that conductive layers of different polarities are exposed on opposing sides of the multi-layer piezoelectric stack. Electrodes are coupled to the conductive layers. Electrical leads are coupled to each electrode. A head mass is configured to encapsulate a top portion of the stack. A tail mass is configured to encapsulate a bottom portion of the stack. At least one coupling arrangement extends from a top surface of the head mass through the cross-sectional area of the head mass into the tail mass such that the stack is contained in a rigid assembly under compression.