公开(公告)号：US3736436A

公开(公告)日：1973-05-29

申请号：US3736436D

申请日：1971-11-04

申请人： MC DONNELL DOUGLAS CORP

发明人： CRITES R

IPC分类号： H04R19/01 ,  H01G7/02 ,  H04R19/00

CPC分类号： H04R19/01

摘要： An electret pressure transducer consisting of a very thin insulating coating applied to the surface of a body to be investigated when under stress, a thin layer of conductive paint or metallic deposit configured to extend over the area to be investigated, a layer of a solid elastic material, the electretfilm containing a permanent electric charge, and a metallic deposit on the electret film. The layer of conductive paint and the metallic deposit constitute the two plates of a parallelplate capacitor, and the elastic material in conjunction with the electric charge provided by the electret determines the sensitivity, linearity, and frequency response of the transducer.

摘要翻译： 一种驻极体压力传感器，其由在应力下应用于待研究的物体的表面施加的非常薄的绝缘涂层构成，导电涂料薄层或金属沉积物构造成在待研究的区域上延伸，一层固体弹性体 材料，含有永久电荷的驻极体膜以及驻极体膜上的金属沉积物。 导电涂料和金属沉积物层构成平行板电容器的两个板，弹性材料与驻极体提供的电荷结合确定了传感器的灵敏度，线性和频率响应。