公开(公告)号：US20050139009A1

公开(公告)日：2005-06-30

申请号：US10500153

申请日：2002-12-28

申请人： Karl Flogel ,  Sergej Lopatiin ,  Elke Schmidt ,  Thomas Uehlin ,  Olaf Textor ,  Michael Hugel

发明人： Karl Flogel ,  Sergej Lopatiin ,  Elke Schmidt ,  Thomas Uehlin ,  Olaf Textor ,  Michael Hugel

IPC分类号： G01L9/00 ,  G01L13/02 ,  G01L19/04 ,  G01L19/06

CPC分类号： G01L19/0636 ,  G01L19/0654

摘要： A pressure sensor for measuring a pressure difference between a pressure being measured and the ambient atmospheric pressure surrounding the pressure sensor, including a platform and a membrane loadable with a pressure being measured. The membrane is secured at its edge to the platform, with a pressure chamber thus being formed between the platform and the measuring membrane. The pressure chamber communicates over a reference air path with the atmosphere, with the reference air path being a winding path.

摘要翻译： 一种压力传感器，用于测量被测量的压力与围绕压力传感器的环境大气压力之间的压力差，包括平台和可测量压力的膜。 膜在其边缘固定到平台，由此在平台和测量膜之间形成压力室。 压力室在参考空气路径上与大气连通，参考空气路径是卷绕路径。

公开(公告)号：US06363790B1

公开(公告)日：2002-04-02

申请号：US09418927

申请日：1999-10-15

申请人： Karl Flögel ,  Thomas Uehlin

发明人： Karl Flögel ,  Thomas Uehlin

IPC分类号： G01L1904

CPC分类号： G01L9/0075 ,  G01L19/04

摘要： The invention is concerned with a pressure sensor which avoids temperature hysteresis effects caused on account of heat-induced expansions as a result of stresses between a ceramic pressure-measuring cell and a metallic housing. The inventive pressure sensor (100) for determining the pressure of a process medium comprises a metallic housing (110), which is open to a process medium and has a continuous hole (111) for accommodating the ceramic pressure-measuring cell (120), the pressure-measuring cell (120) comprising a ceramic base body (122) and a ceramic diaphragm (121), which is fitted thereon and is exposed to the process medium, and also suitable means (124a, 124b, 130), which supply an electrical signal which can be picked off and corresponds to the process pressure acting on the diaphragm (121). The pressure-measuring cell (120) is fixed axially in a resilient manner in the housing (110) by means of a metallic fixing device (150) which acts on a non-metallic intermediate body (140), which is provided between the pressure-measuring cell (120) and the fixing device (150) and can be moved radially at least with respect to the fixing device (150).

摘要翻译： 本发明涉及一种压力传感器，该压力传感器避免了由于陶瓷压力测量单元和金属壳体之间的应力而导致的由热引起的膨胀引起的温度滞后效应。本发明的压力传感器（100）用于确定 处理介质包括金属壳体（110），该金属壳体对加工介质开放并具有用于容纳陶瓷压力测量单元（120）的连续孔（111），所述压力测量单元（120）包括陶瓷基座 主体（122）和安装在其上并暴露于处理介质的陶瓷膜片（121）以及适当的装置（124a，124b，130），其提供可被拾取并对应于 作用在隔膜（121）上的过程压力。 压力测量单元（120）通过作用在非金属中间体（140）上的金属固定装置（150）以弹性方式轴向固定在壳体（110）中，金属固定装置（150）设置在压力 - 测量单元（120）和定影装置（150），并且可以至少相对于定影装置（150）径向移动。