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1. 发明公开

EP1153276A4 TRANSDUCER HAVING TEMPERATURE COMPENSATION 审中-公开
标题翻译： WANDLER MIT TEMPERATURKOMPENSATION
公开(公告)号：EP1153276A4
公开(公告)日：2002-06-19
申请号：EP99958875
申请日：1999-11-10
申请人： SETRA SYSTEMS INC
发明人： LEE SHIH-YING
IPC分类号： G01L9/12 , G01L9/00 , G01L19/04
CPC分类号： G01L19/04 , G01L9/0072
摘要： A capacitive pressure transducer (110) includes a conductive diaphragm (140) and a thermal compensation element with a different coefficient of thermal expansion from that of other elements within the pressure transducer.
摘要翻译：电容式压力传感器包括位于由凹体部件限定的气动分离的室之间的导电隔膜。隔膜固定并在其周边密封地连接到凹体构件的周缘。隔膜可以被身体构件的周边边缘张紧地支撑。由一个主体构件支撑的电极组件建立了与导电隔膜相距并与其隔开的基本平坦的导电表面。电容式压力换能器还包括热稳定地耦合到凹体构件之一和/或电极的内表面或外表面的热补偿元件。热补偿元件的热膨胀系数与其所附着的凹体部件或电极的热膨胀系数不同。凹体部件或电极与具有不同热膨胀系数的热补偿元件的组合导致双金属动作，其产生热依赖力，其补偿或反作用于热诱导的换能器特性的变化。

2. 发明公开

EP1038161A4 PRESSURE TRANSDUCER HAVING A TENSIONED DIAPHRAGM 有权
标题翻译： WITH A拉伸的膜压力转换
公开(公告)号：EP1038161A4
公开(公告)日：2001-04-25
申请号：EP98958002
申请日：1998-11-16
申请人： SETRA SYSTEMS INC
发明人： LEE SHIH-YING
IPC分类号： G01L9/00 , G01L13/00 , G01L9/12 , G01L7/08
CPC分类号： G01L13/00 , G01L9/0072 , Y10T29/43
摘要： A capacitive pressure transducer (110) includes a conductive diaphragm positioned between pneumatically separated chambers. The diaphragm is fixed and sealingly coupled at its periphery to the peripheral rim (116) of a concave body member. The diaphragm (140) is supported in tension by the peripheral rim (116) of a concave body member. An electrode assembly (150), supported by the body member (120, 130), establishes a substantially planar conductive surface opposite to and spaced apart by a nominal gap from the conductive diaphragm. The body member includes a yieldable portion that is adapted to radically expand its peripheral rim (116) in response to forces applied to the body member. When the forces are aplied, the body member becomes strained beyond its elastic limit and takes a permanent set whereby the peripheral rim (116) is expanded and the diaphragm becomes tensioned.

3. 发明公开

EP0741906A4 LOW COST, CENTER-MOUNTED CAPACITIVE PRESSURE SENSOR 失效
标题翻译： CHEAPER中央安装式电容式压力转换器
公开(公告)号：EP0741906A4
公开(公告)日：1998-04-15
申请号：EP95907484
申请日：1995-01-20
申请人： SETRA SYSTEMS INC
发明人： LEE SHIH-YING
IPC分类号： G01L1/14 , G01L9/00 , G01L9/12 , H01G5/16 , H01G7/00
CPC分类号： G01L9/0072
摘要： A variable capacitance type pressure sensor (10) with excellent manufacturability center-mounts an electrode (20) on an edge-mounted diaphragm (16) using a metal-glass-metal subassembly (18). An inner metal post (28) of the assembly is welded to the diaphragm (16). A solder or flowable cement (36) secures the electrode (20) to an outer metal collar (32) of the assembly (18) with the initial diaphragm-to-electrode spacing (38) set by a temporary shim (40). The position of the glass (30) and the physical lengths of the metallic members (28, 32) of the assembly are adjusted to provide self-compensation for temperature variations.

4. 发明公开

EP0714505A4 CAPACITIVE PRESSURE SENSOR 失效
标题翻译：电容式压力转换器
公开(公告)号：EP0714505A4
公开(公告)日：1997-02-26
申请号：EP94925923
申请日：1994-08-12
申请人： SETRA SYSTEMS INC
发明人： LEE SHIH-YING
IPC分类号： G01L9/12 , G01L9/00 , G01L7/08 , G01L7/12
CPC分类号： G01L9/0072
摘要： A capacitive pressure sensor (10) includes a conductive diaphragm (20) positioned between two pneumatically separate chambers (60, 64). The diaphragm is supported at its periphery by a concave base member (30). An electrode assembly (40) establishes a substantially planar conductive surface (42a) opposite to, and spaced apart by a nominal gap from, the conductive diaphragm. The electrode assembly includes the conductive surface and a single support element (44) secured to, and extending through the base member. A glass dielectric (46) fixes the support element to a collar (48) which may be welded, brazed, or soldered to the base member. The glass dielectric provides both mechanical support and high quality electric insulation between the electrode and the housing. By prefabricating the electrode support element with the collar and securing the collar to the housing after the dielectric has cured, problems associated with thermal expansion are avoided and the dimension of the nominal gap may be precisely controlled at low cost.

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