公开(公告)号：US20080296156A1

公开(公告)日：2008-12-04

申请号：US12129761

申请日：2008-05-30

申请人： Christian OHLY ,  Walter Strassner ,  Joachim Graeber ,  Ulrich Eisele ,  Lothar Diehl ,  Thomas Seiler

发明人： Christian OHLY ,  Walter Strassner ,  Joachim Graeber ,  Ulrich Eisele ,  Lothar Diehl ,  Thomas Seiler

IPC分类号： G01N27/26

CPC分类号： G01N27/4073 ,  G01N27/4072

摘要： A sensor element is provided for determining a physical property of a measuring gas, especially of the concentration of at least one gas component in the measuring gas, which has at least one ceramic layer, a diffusion barrier adjoining the at least one ceramic layer and at least one electrode that is exposed to the measuring gas diffusing through the diffusion barrier. In order to reduce the production variations with respect to the static pressure dependence and the limiting current of the diffusion barrier), the proportions of silicon in the diffusion barrier and in the at least one ceramic layer are approximately equal and differ by not more than 1 wt. %.

摘要翻译： 提供了一种传感器元件，用于确定测量气体的物理特性，特别是测量气体中至少一种气体组分的浓度，其具有至少一个陶瓷层，与该至少一个陶瓷层邻接的扩散阻挡层 暴露于通过扩散阻挡层扩散的测量气体的至少一个电极。 为了减少关于静态压力依赖性和扩散阻挡层的限制电流的生产变化），扩散阻挡层和至少一个陶瓷层中的硅的比例近似相等并且不同于1 重量 ％。