首页>
外国专利>
CAPACITIVE CERAMIC LOAD CELL AND PRESSURE SENSOR HAVING SUCH A LOAD CELL
CAPACITIVE CERAMIC LOAD CELL AND PRESSURE SENSOR HAVING SUCH A LOAD CELL
展开▼
机译:电容式陶瓷称重传感器和具有此类称重传感器的压力传感器
展开▼
页面导航
摘要
著录项
相似文献
摘要
A capacitive pressure measuring cell, including a ceramic platform and a ceramic measuring membrane, which are connected pressure tightly along a joint to form a reference pressure chamber between them. The measuring membrane has a first electrode facing the platform, and the platform has at least a second electrode facing the measuring membrane. The capacitance between the first and second electrodes depends on the difference between a pressure externally acting on the measuring membrane and a pressure reigning in the reference pressure chamber, wherein the joint has a thickness d, which defines an equilibrium distance between the measuring membrane and the front side of the platform. On the front side of the platform, a support layer is arranged, which comprises an inorganic insulator, wherein the support layer has a thickness of at least 0.2, and wherein the second electrode is arranged on the support layer.
展开▼