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公开(公告)号：EP2223070B1
公开(公告)日：2012-06-20
申请号：EP08861996.0
申请日：2008-12-12
CPC分类号： G01L19/0609 , G01L9/0073 , G01L13/026
摘要： A differential pressure measuring cell (1) for detecting the pressure differential between a first pressure and a second pressure comprises: an elastic measuring arrangement having at least one measuring diaphragm (4, 203, 205), which has silicon; at least one carrier body (2, 5, 204), which is connected pressure-tight to the elastic measuring arrangement; a first hydraulic path, in order to transmit a first pressure to a first surface section of the elastic measuring arrangement; a second hydraulic path, in order to transmit a second pressure to a second surface section of the elastic measuring arrangement, wherein said first pressure counteracts said second pressure, and the elastic deflection of the measuring arrangement is a measure of the differential between the first pressure and the second pressure, wherein said differential pressure measuring cell also has at least one hydraulic throttle (9, 10, 211), characterized in that the at least one hydraulic throttle comprises porous silicon.
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公开(公告)号：EP2442085A1
公开(公告)日：2012-04-18
申请号：EP11180144.5
申请日：2011-09-06
申请人： Rolls-Royce plc
IPC分类号： G01L19/06
CPC分类号： G01L19/0609
摘要： A pressure indicator for indicating pressure of a pressure source. The indicator comprises a first reservoir which defines a first enclosed volume having a first inlet pipe for communication between the first enclosed volume and a first source of pressurised fluid. The first inlet pipe defines a nominal communication path length between the first enclosed volume and a first source of pressurised fluid. A member is provided in the first inlet pipe which defines one or more communication paths of greater length to that of the nominal communication path length.
摘要翻译： 压力指示器，用于指示压力源的压力。 指示器包括限定第一封闭容积的第一储存器，第一封闭容积具有用于在第一封闭容积和第一加压流体源之间连通的第一入口管。 第一入口管道限定第一封闭容积和第一加压流体源之间的标称通信路径长度。 在第一入口管中设有一个构件，该构件限定了一条或多条长度与标称通信路径长度相比更长的通信路径。
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公开(公告)号：EP1912052B1
公开(公告)日：2011-01-12
申请号：EP06291587.1
申请日：2006-10-09
申请人： Services Pétroliers Schlumberger , Schlumberger Technology B.V. , Schlumberger Holdings Limited , PRAD Research and Development N.V.
发明人： Besson, Christian
CPC分类号： E21B47/06 , G01L19/0609
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公开(公告)号：EP2023113A3
公开(公告)日：2010-07-28
申请号：EP08012187.4
申请日：2008-07-05
发明人： Holzheu, Herbert
CPC分类号： G01L23/18 , G01L19/0609 , G01L19/0681
摘要： Die Erfindung betrifft ein Druckmesssensor bestehend aus einem Sensorträger und einem eine Membran tragenden Membranträger. Der Sensorträger ist mit einem Verbindungskanal ausgestattet, um den vor der Membran angeordneten Membranraum mit dem Druckmessraum zu verbinden. Es ist eine Umlenkung vorgesehen, durch welche die von dem Druckmessraum durch den Verbindungskanal in den Membranraum laufende Gasdruckwelle eine Kühlung erfährt.
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75.发明授权
公开(公告)号：EP1839025B1
公开(公告)日：2010-04-07
申请号：EP05849777.7
申请日：2005-12-16
发明人： DANNHAUER, Wolfgang
CPC分类号： G01L19/0645 , G01L19/04 , G01L19/0609 , G01L19/0663
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公开(公告)号：EP1567843B1
公开(公告)日：2009-11-18
申请号：EP03812164.6
申请日：2003-12-02
CPC分类号： G01L19/0645 , G01L19/0609
摘要： Disclosed is a pressure sensor (1) comprising a pressure chamber (7) that is embodied between a separating membrane (3) and a base member (2), a pressure duct (4) for hydraulically transducing the pressure to a measuring cell, and a venturi throttle element that is used for dynamic overload protection and is created by providing the pressure duct with at least one section, the penetrated cross-sectional area of which is variable. Said section is preferably embodied as a ring channel. The penetrated cross-sectional area can be modified by axially displacing a conical inner wall (6) relative to a complementary conical outer wall (5) or by deforming an elastic inner or outer wall of the ring channel, for example.
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公开(公告)号：EP2089684A2
公开(公告)日：2009-08-19
申请号：EP07817909.0
申请日：2007-11-21
申请人： Danfoss A/S
发明人： VOGLER, Jes
CPC分类号： G01L19/0038 , G01L19/0609 , G01L19/0645
摘要： The invention provides a restriction element for a pressure sensor to protect the pressure element from flow related damage. The pressure sensor comprising a housing with a fluid inlet channel and a chamber with a pressure element. The pressure element comprises a housing part with a recess covered by a sealing diaphragm forming a cavity. In the oil-filled cavity a sensor element is placed. The restriction element is placed in front of the sealing diaphragm protecting the pressure element and especially the sealing diaphragm from a damaging pulse or other flow related damages caused by sudden changes in a flow system for example by closing a valve.
摘要翻译： 本发明提供了一种用于压力传感器的限制元件，以保护压力元件免受与流动相关的损坏。 压力传感器包括具有流体入口通道的壳体和具有压力元件的腔室。 压力元件包括具有由形成空腔的密封隔膜覆盖的凹部的壳体部分。 在充油腔中放置一个传感器元件。 限制元件被放置在密封隔膜的前方，从而保护压力元件并且特别是密封隔膜免受由流动系统中的突然变化（例如通过关闭阀门）引起的损坏脉冲或其他流动相关损坏。
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公开(公告)号：EP2082204A2
公开(公告)日：2009-07-29
申请号：EP07853561.4
申请日：2007-09-19
IPC分类号： G01L9/00
CPC分类号： C23C14/021 , C23C14/022 , C23C14/025 , C23C14/0682 , C23C14/5806 , C23C14/5846 , C23C14/5873 , G01L9/0042 , G01L19/0061 , G01L19/0609 , G01L19/147 , H01L2224/48472
摘要： A harsh environment transducer including: - a substrate (14) having a first surface and a second surface, the latter being exposed to the environment - a device layer sensor means (12) on the substrate (14) for measuring a parameter associated with the environment, including a single crystal semiconductor material having a thickness of less than about 0.5 microns - an output (50) contact on the substrate (14) and in electrical communication with the sensor means (12) - a package having an internal space communicating with the environment and receiving the substrate (14) such that its first surface is substantially isolated from the environment and its second surface is substantially exposed to the environment - a connecting component (22) coupled to the package - a wire (24) electrically connecting the connecting component (22) and the output contact (50) such that an output of the sensor means can be communicated. The external surface of the wire (24) and at least one of the output contact (50) and the connecting component (22) is substantially platinum.
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公开(公告)号：EP1947317A1
公开(公告)日：2008-07-23
申请号：EP06822466.6
申请日：2006-10-27
申请人： Keihin Corporation
CPC分类号： F02D11/106 , F02D9/1035 , F02D9/104 , F02D9/105 , F02D9/106 , F02D2200/0406 , F02D2400/18 , G01L19/0023 , G01L19/0038 , G01L19/0092 , G01L19/0609 , G01L19/0627 , G01L23/24
摘要： An engine intake system is provided that includes a sensor unit (16) formed by mounting a throttle sensor (18) and a negative pressure sensor (20) on a sensor housing (17) mounted on a mounting face (15) on one side of a throttle body (1), and a negative pressure transmission path (35) providing communication between an intake path (2) and the negative pressure sensor (20) is formed in a crank shape from a first passage (35a) having one end opening on a peripheral face of an upper half of the intake path (2) in proximity to a horizontal plane (H) containing the axis of the intake path (2), a groove-shaped second passage (35b) formed between mating faces of the throttle body (1) and the sensor housing (17) so as to extend while bending upward from the other end of the first passage (35a) at substantially right angles, and a third passage (35c) formed in the throttle body (1) so as to extend from the upper end of the second passage (35b) in a direction opposite to the first passage (35a) and reach the negative pressure sensor (20). It is thus possible to prevent fuel, foreign matter such as carbon, or blow-back gas from entering the negative pressure sensor via the negative pressure transmission path.
摘要翻译： 提供一种发动机进气系统，该发动机进气系统包括一个传感器单元（16），该传感器单元（16）通过将安装在一个安装面（15）上的传感器壳体（17）上的节流传感器（18）和负压传感器（20） 节气门体（1）和提供进气通道（2）和负压传感器（20）之间的连通的负压传递路径（35）从具有一个端部开口的第一通道（35a）形成为曲柄形状 在所述进气路径（2）的上半部的外周面上，在与所述进气路径（2）的轴线相邻的水平面（H）的附近，形成有所述槽状的第二通路（35b），所述槽状的第二通路 节气门体（1）和传感器壳体（17）在从第一通道（35a）的另一端以大致直角向上弯曲的同时延伸，以及形成在节气门体（1）中的第三通道（35c） 从第二通道（35b）的上端沿与第一通道（35a）相反的方向延伸， 并到达负压传感器（20）。 因此，可以防止燃料，异物等碳或回吹气体经由负压传递路径进入负压传感器。
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80.发明公开Method and apparatus for pressure measurements in well testing 有权Verfahren und VorrichtungfürDruckmessungen zur Untersuchung eines Bohrloches
公开(公告)号：EP1912052A1
公开(公告)日：2008-04-16
申请号：EP06291587.1
申请日：2006-10-09
申请人： Services Pétroliers Schlumberger , Schlumberger Technology B.V. , Schlumberger Holdings Limited , PRAD Research and Development N.V.
发明人： Besson, Christian
CPC分类号： E21B47/06 , G01L19/0609
摘要： Apparatus for determining the rate of change of pressure in a well, comprises: a first cavity body defining an enclosed volume, at least part of one wall of the cavity body being constituted by a pressure sensitive membrane which, in use, is exposed to the well pressure so as to be responsive thereto; and a first capillary connected to the first cavity body at one end and being open to the well pressure at the other end so as to provide pressure communication between the well pressure and the interior of the first cavity body; wherein the first cavity body and first capillary are configured such that the apparatus has a pressure response that comprises an input minus a low-pass filtered version of the input.
摘要翻译： 用于确定井中的压力变化率的装置包括：限定封闭容积的第一空腔体，空腔体的一个壁的至少一部分由压敏膜构成，所述压敏膜在使用中暴露于 井压力以响应于此; 以及第一毛细管，其在一端连接到所述第一腔体，并且在另一端与所述井压开放，以在所述井压力和所述第一腔体内部之间提供压力连通; 其中所述第一腔体和第一毛细管被配置成使得所述装置具有压力响应，所述压力响应包括输入减去所述输入的低通滤波版本。
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