发明授权
- 专利标题: Sensor system for measuring pressure
- 专利标题(中): 用于测量压力的传感器系统
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申请号: US12075650申请日: 2008-03-12
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公开(公告)号: US07549343B2公开(公告)日: 2009-06-23
- 发明人: Viacheslav Bekker , Christian Doering , Gottfried Flik , Sven Zinober
- 申请人: Viacheslav Bekker , Christian Doering , Gottfried Flik , Sven Zinober
- 申请人地址: DE Stuttgart
- 专利权人: Robert Bosch GmbH
- 当前专利权人: Robert Bosch GmbH
- 当前专利权人地址: DE Stuttgart
- 代理机构: Kenyon & Kenyon LLP
- 优先权: DE102007012060 20070313
- 主分类号: G01L7/06
- IPC分类号: G01L7/06
摘要:
A sensor system for measuring the pressure in the combustion chamber of an internal combustion engine, by the use of which a high measuring accuracy may be achieved, based on high measuring sensitivity and great thermal stability. In addition, the construction of the sensor system makes possible great system flexibility, and particularly very space-saving installation in the combustion chamber of an internal combustion engine. For this purpose, the sensor system includes at least one electrically conductive spring element and at least one electrically conductive counter-element, the spring element and the counter-element being in mechanical contact over at least one contact area, the contact surface of the spring element having a different curvature profile from that of the contact surface of the counter-element, so that a force action or pressure action, that have the effect of an elastic deformation of the spring element, results in a size change of the contact area between the spring element and the counter-element, and the contact surface of at least one of the two elements, the spring element and/or the counter-element, being provided with a highly resistive coating, so that a size change in the contact area results in a change in the resistance of the system composed of the spring element and the counter-element.
公开/授权文献
- US20080229815A1 Sensor system for measuring pressure 公开/授权日:2008-09-25