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1. 发明申请

WO2009147385A2 POSITION SENSOR 审中-公开
标题翻译：位置传感器
公开(公告)号：WO2009147385A2
公开(公告)日：2009-12-10
申请号：PCT/GB2009/001376
申请日：2009-06-02
申请人： OXFORD RF SENSORS LIMITED , HARRISON, Martin, Roy , WHERRITT, Peter
发明人： HARRISON, Martin, Roy , WHERRITT, Peter
IPC分类号： G01D5/14
CPC分类号： G01D5/145 , G01D5/202
摘要： Position sensor (10') and method for measuring the position of an object comprising, a sensing element and an oscillator (30) coupled to the sensing element such that an electromagnetic field is emitted from the sensing element. An output, arranged to provide a signal, varies in dependence upon a change in an electrical property of the oscillator (30). Change in object position relative to the sensing element alters the electrical property of the oscillator (30). Sensing element comprises at least one discontinuity arranged to perturb the signal at a predetermined object position. Alternatively, there is a temperature compensator in proximity to the sensing element and arranged to compensate the signal for changes in temperature.
摘要翻译：位置传感器（10'）和用于测量物体位置的方法，包括耦合到感测元件的感测元件和振荡器（30），使得从感测元件发射电磁场。布置成提供信号的输出根据振荡器（30）的电特性的变化而变化。相对于感测元件的物体位置的变化改变了振荡器（30）的电性质。感测元件包括布置成扰动在预定对象位置处的信号的至少一个间断。或者，在感测元件附近存在温度补偿器，并且布置成用于补偿信号的温度变化。

2. 发明申请

WO2012013607A3 DEVICE FOR DETERMINING PROPERTIES OF A FLUID BY MEANS OF A COAXIAL RESONATOR SHORTED AT ONE END BY A PLATE THROUGH WHICH THE FLUID FLOWS 审中-公开
公开(公告)号：WO2012013607A3
公开(公告)日：2012-02-02
申请号：PCT/EP2011/062682
申请日：2011-07-22
申请人： Oxford RF Sensors Limited , PARKER, Alan
发明人： PARKER, Alan
IPC分类号： G01N22/00 , G01N33/28 , G01R27/26
摘要： Cavity resonator comprising: a cavity having a fluid entrance and a fluid exit forming a fluid flow path through the cavity. A shorting plate within the cavity arranged within the fluid flow path. The cavity resonator may be used in a system for detecting properties of a fluid, where the system also comprises a fluid supply, a high frequency supply, and a detector for detecting one or more resonant frequencies of the cavity resonator.

3. 发明申请

WO2011012843A1 PROXIMITY SENSOR 审中-公开
标题翻译：接近传感器
公开(公告)号：WO2011012843A1
公开(公告)日：2011-02-03
申请号：PCT/GB2010/001403
申请日：2010-07-23
申请人： Oxford RF Sensors Limited , HARRISON, Martin Roy , WHERRITT, Peter , GREGG, John Francis
发明人： HARRISON, Martin Roy , WHERRITT, Peter , GREGG, John Francis
IPC分类号： G01B7/14
CPC分类号： G01B7/14 , F01D11/20 , F01D17/02
摘要： Proximity sensor (10) for detecting the proximity of a conductive component (40) comprising an oscillator having electrical properties and arranged to provide an oscillating signal. First coil (20) arranged to receive the oscillating signal and alter the electrical properties of the oscillator by a first variation in response to the proximity of the conductive component to the proximity sensor. Second coil (30) arranged to receive the oscillating signal and alter the electrical properties of the oscillator by a second variation in response to the proximity of the conductive component (40) to the proximity sensor, wherein the first coil (20) and the second coil (30) cause a different variation to the electrical properties of the oscillator for the same proximity of the conductive component (40) to the proximity sensor (10). Proximity output arranged to provide a proximity signal which varies in dependence upon the proximity of the conductive component (40) to the proximity sensor and based on a comparison of the first variation to the second variation.
摘要翻译：用于检测导电部件（40）的接近度的接近传感器（10），包括具有电性能的振荡器，并被布置成提供振荡信号。第一线圈（20）被布置成响应于导电部件与接近传感器的接近而通过第一变化来接收振荡信号并改变振荡器的电特性。第二线圈（30）被布置成响应于所述导电部件（40）与所述接近传感器的接近度而接收所述振荡信号并改变所述振荡器的电特性，其中所述第一线圈（20）和所述第二线圈对于导电部件（40）与接近传感器（10）的相同接近度，线圈（30）对振荡器的电特性产生不同的变化。接近输出被布置成提供根据导电部件（40）与接近传感器的接近度而变化的接近信号，并且基于第一变化与第二变化的比较。

4. 发明申请

WO2012153090A3 FLUID CONDUIT 审中-公开
公开(公告)号：WO2012153090A3
公开(公告)日：2012-11-15
申请号：PCT/GB2012/000424
申请日：2012-05-10
申请人： MAGMA GLOBAL LIMITED , OXFORD RF SENSORS LIMITED , JONES, Martin, Peter, William , TAVNER, Charles, Alexander , PARKER, Alan, David , GREGG, John, Francis
发明人： JONES, Martin, Peter, William , TAVNER, Charles, Alexander , PARKER, Alan, David , GREGG, John, Francis
IPC分类号： G01N22/00 , G01N29/22 , F16L11/08
摘要： A fluid conduit (2) comprises a wall (4) defining a fluid flow path (6) and a confinement feature (24) within the wall (4) and being configured to confine energy within a cavity (26), wherein at least a portion of the fluid flow path (6) extends through the cavity (26). The confinement feature (24) may be configured to confine electromagnetic energy. The fluid conduit (2) may comprise an oscillator defined by the cavity (26) and a positive feedback arrangement (34). The fluid conduit (2) may be configured for sensing a property of a fluid present in or flowing through the fluid conduit (2) or for use in sensing a property of a fluid present in or flowing through the fluid conduit (2). More specifically, the present invention deals with a microwave cavity sensor wherein the cavity member (24) is embedded in the wall (4) of the fluid conduit (2), the wall (4) including a composite region (20).

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