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公开(公告)号：US20100320870A1
公开(公告)日：2010-12-23
申请号：US12739072
申请日：2008-10-30
CPC分类号： H02N2/043
摘要： A flextensional transducer that can be stored at room temperature and activated and operated at an elevated temperature in excess of 200° C., comprises (i) an elongate driver, (ii) a flextensional housing shell containing the elongate driver, comprising a pair of contact portions located on opposite sides of the housing shell and in mechanical contact with the ends of the driver, and having a different coefficient of thermal expansion from that of the driver, and (iii) thermal compensating members; the flextensional housing shell moving by flexing on actuation, the thermal compensating members being located in, or on, parts of the housing shell that move on actuation, and comprising a material having a different coefficient of thermal expansion from that of surrounding parts of the housing shell, such that as the temperature increases up to the said elevated temperature the thermal compensating members expand more or less than the said surrounding parts of the housing shell, causing the housing shell to flex so as to urge the contact portions of the housing shell towards each other to compensate for the greater thermal expansion of the housing relative to that of the driver member.
摘要翻译： 可以在室温下存储并在高于200℃的高温下运行的弯曲换能器包括（i）细长驱动器，（ii）包含细长驱动器的弯曲壳体壳体，包括一对 接触部分位于壳体壳体的相对侧并且与驱动器的端部机械接触，并且具有与驱动器的不同的热膨胀系数，和（iii）热补偿构件; 所述弯曲壳体壳体通过在致动时弯曲而移动，所述热补偿构件位于所述壳体壳体的部分上或在所述壳体壳体上在致动时移动，并且包括具有与所述壳体的周围部分不同的热膨胀系数的材料 壳体，使得随着温度升高到所述升高的温度，热补偿构件比壳体壳体的所述周围部分更多或更小地膨胀，导致壳体壳体弯曲，从而将壳体壳体的接触部分朝向 彼此补偿壳体相对于驱动器构件的热膨胀的更大的热膨胀。
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公开(公告)号：US20100308689A1
公开(公告)日：2010-12-09
申请号：US12739649
申请日：2008-10-30
申请人： Ahmed Yehia Amin Abdel Rahman , Jonathan Geoffrey Gore , Fiona Louise Lowrie , Richard Carson McBride
发明人： Ahmed Yehia Amin Abdel Rahman , Jonathan Geoffrey Gore , Fiona Louise Lowrie , Richard Carson McBride
IPC分类号： H01L41/053 , F03G7/06
摘要： A multistage flextensional transducer includes at least one inner elongate driver member within and mechanically coupled to an inner shell that is nested within an outer shell; the inner shell comprising a pair of contact portions abutting the driver member and a pair of transmission portions on opposite sides of the inner shell between the contact portions; the outer shell being arranged so that the transmission portions act as bridging driver members between the said inner and outer shells, flexure of the outer shell being driven, on actuation of the transducer, by movement of the bridging driver members. The transducer may act as a push or pull actuator or sensor, may magnify displacement and may employ smart materials as driver members. Also cylindrical modules containing thin flextensional actuators may provide axial displacement in a downhole environment and may move a device axially along a downhole pipe or close a valve opening or inch along the pipe.
摘要翻译： 多级弯曲换能器包括至少一个内部细长驱动器构件，并且机械地联接到嵌套在外壳内的内壳; 所述内壳包括邻接所述驱动构件的一对接触部分和位于所述接触部分之间的所述内壳相对侧上的一对传动部分; 所述外壳被布置成使得所述传动部分作为所述内壳和外壳之间的桥接驱动构件，通过所述桥接驱动构件的移动，在所述换能器致动时所述外壳的挠曲被驱动。 换能器可以用作推动或拉动致动器或传感器，可以放大位移，并且可以使用智能材料作为驱动器构件。 包括薄的弯曲致动器的圆柱形模块也可以在井下环境中提供轴向位移，并且可以沿着井下管轴向移动装置，或沿管道关闭阀门开口或英寸。
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公开(公告)号：US07715611B2
公开(公告)日：2010-05-11
申请号：US10570741
申请日：2004-08-19
申请人： Stuart John Eaton , Jonathan Geoffrey Gore , Christopher Robert Lawrence , George Jiri Tomka , Adam Daykin
发明人： Stuart John Eaton , Jonathan Geoffrey Gore , Christopher Robert Lawrence , George Jiri Tomka , Adam Daykin
IPC分类号： G06K9/00
CPC分类号： G07D7/04
摘要： In order to check the authenticity of a banknote or other such document it is printed with two patches of magnetisable ink, and each patch is magnetised to present a multipole sequence of alternating polarity. If the document is folded to bring the two patches together and then rubbed to and fro in the direction of the pole sequences, they will be subject to alternating forces of attraction and repulsion which can be sensed through the fingertips and gives the impression of a physically rippled texture notwithstanding that the patches actually have a smooth surface. The presence or absence of this effect can therefore be used to distinguish between a genuine document bearing such magnetised patches and a counterfeit which may be visually identical but lacks the correct magnetisation. In a variant only one of the patches is printed on the document itself and the other is on a separate “key” device which is rubbed over it to test for the presence of the correct magnetisation.
摘要翻译： 为了检查纸币或其他此类文件的真实性，印刷有两块可磁化墨水，并且每个贴片被磁化以呈现交替极性的多极序列。 如果文件被折叠以使两个贴片在一起，然后在杆序列的方向上来回摩擦，则它们将经受交替的吸引力和排斥力，其可以通过指尖感测并给人以身体的印象 即使贴片实际上具有光滑的表面，波纹纹理也是如此。 因此，这种效应的存在或不存在可以用于区分带有这种磁化贴片的真实文件和可视觉上相同但缺乏正确磁化的假冒伪劣。 在一个变体中，只有一个补丁被打印在文件本身上，而另一个在一个单独的“钥匙”装置上被摩擦，以测试是否存在正确的磁化。
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公开(公告)号：US08159114B2
公开(公告)日：2012-04-17
申请号：US12739649
申请日：2008-10-30
申请人： Ahmed Yehia Amin Abdel Rahman , Jonathan Geoffrey Gore , Fiona Louise Lowrie , Richard Carson McBride
发明人： Ahmed Yehia Amin Abdel Rahman , Jonathan Geoffrey Gore , Fiona Louise Lowrie , Richard Carson McBride
IPC分类号： H01L41/09
摘要： A multistage flextensional transducer includes at least one inner elongate driver member within and mechanically coupled to an inner shell that is nested within an outer shell; the inner shell comprising a pair of contact portions abutting the driver member and a pair of transmission portions on opposite sides of the inner shell between the contact portions; the outer shell being arranged so that the transmission portions act as bridging driver members between the said inner and outer shells, flexure of the outer shell being driven, on actuation of the transducer, by movement of the bridging driver members. The transducer may act as a push or pull actuator or sensor, may magnify displacement and may employ smart materials as driver members. Also cylindrical modules containing thin flextensional actuators may provide axial displacement in a downhole environment and may move a device axially along a downhole pipe or close a valve opening or inch along the pipe.
摘要翻译： 多级弯曲换能器包括至少一个内部细长驱动器构件，并且机械地联接到嵌套在外壳内的内壳; 所述内壳包括邻接所述驱动构件的一对接触部分和位于所述接触部分之间的所述内壳相对侧上的一对传动部分; 所述外壳被布置成使得所述传动部分作为所述内壳和外壳之间的桥接驱动构件，通过所述桥接驱动构件的移动，在所述换能器致动时所述外壳的挠曲被驱动。 换能器可以用作推动或拉动致动器或传感器，可以放大位移，并且可以使用智能材料作为驱动器构件。 包括薄的弯曲致动器的圆柱形模块也可以在井下环境中提供轴向位移，并且可以沿着井下管轴向移动装置，或沿管道关闭阀门开口或英寸。
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公开(公告)号：US08133041B2
公开(公告)日：2012-03-13
申请号：US12521157
申请日：2007-12-21
申请人： Jeremy Leonard Clive Ludlow , Jonathan Geoffrey Gore , Adrian Robert Bowles , Mark Gregory Maylin , Richard Carson McBride , Abdul-Salam Kaddour , Ahmed Yehia Amin Abdel-Rahman
发明人： Jeremy Leonard Clive Ludlow , Jonathan Geoffrey Gore , Adrian Robert Bowles , Mark Gregory Maylin , Richard Carson McBride , Abdul-Salam Kaddour , Ahmed Yehia Amin Abdel-Rahman
CPC分类号： F04B17/003 , F04B5/00 , F04B53/007 , F04B53/143 , F04B53/162 , F05C2201/046 , F05C2225/04
摘要： A high pressure pump for use in the injection of liquid chemicals into subsea oil or gas wells, and intended to be positioned in the subsea environment adjacent to the wellhead, comprises a piezoelectric actuator (19) for reciprocating a plunger (22) which acts to compress and expand the effective volume of a pumping chamber (29) having a valved inlet (15) connected to a source of the liquid and a valved outlet (16) to lead the liquid to the well. The device has a minimum of moving parts and in particular avoids the need for any rotating parts and attendant high performance bearings and seals.
摘要翻译： 用于将液体化学品注入海底油井或气井并且旨在定位在靠近井口的海底环境中的高压泵包括压电致动器（19），用于使柱塞（22）往复运动 压缩和膨胀具有连接到液体源的带阀的入口（15）和带阀的出口（16）的泵送室（29）的有效体积，以将液体引导到井。 该装置具有最少的移动部件，特别是避免了任何旋转部件和伴随的高性能轴承和密封件的需要。
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公开(公告)号：US20100074776A1
公开(公告)日：2010-03-25
申请号：US12521157
申请日：2007-12-21
申请人： Jeremy Leonard Clive Ludlow , Jonathan Geoffrey Gore , Adrian Robert Bowles , Mark Gregory Maylin , Richard Carson McBride , Abdul-Salam Kaddour , Ahmed Yehia Amin Abdel-Rahman
发明人： Jeremy Leonard Clive Ludlow , Jonathan Geoffrey Gore , Adrian Robert Bowles , Mark Gregory Maylin , Richard Carson McBride , Abdul-Salam Kaddour , Ahmed Yehia Amin Abdel-Rahman
CPC分类号： F04B17/003 , F04B5/00 , F04B53/007 , F04B53/143 , F04B53/162 , F05C2201/046 , F05C2225/04
摘要： A high pressure pump for use in the injection of liquid chemicals into subsea oil or gas wells, and intended to be positioned in the subsea environment adjacent to the wellhead, comprises a piezoelectric actuator (19) for reciprocating a plunger (22) which acts to compress and expand the effective volume of a pumping chamber (29) having a valved inlet (15) connected to a source of the liquid and a valved outlet (16) to lead the liquid to the well. The device has a minimum of moving parts and in particular avoids the need for any rotating parts and attendant high performance bearings and seals.
摘要翻译： 用于将液体化学品注入海底油井或气井并且旨在定位在靠近井口的海底环境中的高压泵包括压电致动器（19），用于使柱塞（22）往复运动 压缩和膨胀具有连接到液体源的带阀的入口（15）和带阀的出口（16）的泵送室（29）的有效体积，以将液体引导到井。 该装置具有最少的移动部件，特别是避免了任何旋转部件和伴随的高性能轴承和密封件的需要。
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公开(公告)号：US08659209B2
公开(公告)日：2014-02-25
申请号：US13414816
申请日：2012-03-08
申请人： Ahmed Yehia Amin Abdel Rahman , Jonathan Geoffrey Gore , Fiona Louise Lowrie , Richard Carson McBride
发明人： Ahmed Yehia Amin Abdel Rahman , Jonathan Geoffrey Gore , Fiona Louise Lowrie , Richard Carson McBride
IPC分类号： H01L41/09
摘要： A multistage flextensional transducer includes at least one inner elongate driver member within and mechanically coupled to an inner shell that is nested within an outer shell; the inner shell comprising a pair of contact portions abutting the driver member and a pair of transmission portions on opposite sides of the inner shell between the contact portions; the outer shell being arranged so that the transmission portions act as bridging driver members between the said inner and outer shells, flexure of the outer shell being driven, on actuation of the transducer, by movement of the bridging driver members. The transducer may act as a push or pull actuator or sensor, may magnify displacement and may employ smart materials as driver members. Also cylindrical modules containing thin flextensional actuators may provide axial displacement in a downhole environment and may move a device axially along a downhole pipe or close a valve opening or inch along the pipe.
摘要翻译： 多级弯曲换能器包括至少一个内部细长驱动器构件，并且机械地联接到嵌套在外壳内的内壳; 所述内壳包括邻接所述驱动构件的一对接触部分和位于所述接触部分之间的所述内壳相对侧上的一对传动部分; 所述外壳被布置成使得所述传动部分作为所述内壳和外壳之间的桥接驱动构件，通过所述桥接驱动构件的移动，在所述换能器致动时所述外壳的挠曲被驱动。 换能器可以用作推动或拉动致动器或传感器，可以放大位移，并且可以使用智能材料作为驱动器构件。 包括薄的弯曲致动器的圆柱形模块也可以在井下环境中提供轴向位移，并且可以沿着井下管轴向移动装置，或沿管道关闭阀门开口或英寸。
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公开(公告)号：US06910384B2
公开(公告)日：2005-06-28
申请号：US10472601
申请日：2002-03-20
CPC分类号： G01M5/0083 , G01L1/125 , G01M5/0008 , G01M5/0016 , G01M5/0041 , G01M5/0091
摘要： A stress or magnetic field sensor comprising a generally elongate magnetically soft amorphous or nanocrystalline electrically resistive element and biasing means for applying to the element a bias magnetic field of which the component directed along the length of the sensor has an amplitude variation pattern along the element. A periodically varying pattern has the effect of reducing the sensitivity of a stress sensor to external ambient fields (FIG. 3 shows that with a sawtooth bias field the sensitive portions a of a sensor move to positions b in the presence of an ambient field, but their number remains the same). A ramped bias field enables the position of the sensitive region of the sensor to be controlled, for measuring local stress, or for mapping an external magnetic field. Control of the regions where the sensor is active may include selective conductive coating of portions of its length. Potential uses of the stress sensor include a pressure sensor, embedment in moving parts (using rf communication) such as vehicle tyres, aircraft wings or machine parts, and in structures such as bridges where stray magnetic fields are a problem.
摘要翻译： 应力或磁场传感器包括大体上细长的软磁性无定形或纳米晶体电阻元件和用于向元件施加偏置磁场的偏置装置，偏置磁场沿着传感器长度方向引导的偏磁场具有沿元件的幅度变化图案。 周期性变化的模式具有降低应力传感器对外部环境场的灵敏度的效果（图3示出了通过锯齿偏置场，传感器的敏感部分a在存在环境场的情况下移动到位置b，但是 他们的数字保持不变）。 斜坡偏置场可以控制传感器的敏感区域的位置，用于测量局部应力或用于映射外部磁场。 对传感器有效的区域的控制可以包括其长度部分的选择性导电涂层。 压力传感器的潜在应用包括压力传感器，嵌入在诸如车辆轮胎，飞机机翼或机器部件的运动部件（使用rf通信）中，以及在诸如杂散磁场是问题的桥梁的结构中。
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公开(公告)号：US20080277941A1
公开(公告)日：2008-11-13
申请号：US12097131
申请日：2006-12-19
申请人： Adrian Robert Bowles , Stuart John Eaton , Jonathan Geoffrey Gore , Richard Carson McBride , Ahmed Yehia Amin Rahman
发明人： Adrian Robert Bowles , Stuart John Eaton , Jonathan Geoffrey Gore , Richard Carson McBride , Ahmed Yehia Amin Rahman
IPC分类号： F03B13/02 , H01L41/113
CPC分类号： F03B17/00 , E21B41/0085 , F03B13/02 , F05B2210/16 , F05B2240/97 , F05B2250/411 , F05B2260/407 , F05B2270/709 , H01L41/1136 , H02N2/185 , Y02E10/20
摘要： A device for the generation of electrical power from a fluid flow, and more particularly for harvesting power from flows downhole in oil or gas wells, comprises a cylinder or other blunt body (1) arranged crosswise to the flow and supported on the end of a sprung cantilever arm (3) held in a fixed mount, with freedom to oscillate in response to the shedding of a Karman vortex trail v from the′ body. The resultant motion of the body (1) and arm (3) is converted into electrical energy by piezoelectric material (5) which is attached to, and stressed by, flexure of the arm. Other arrangements of piezoelectric and inductive power generation from the oscillation of the device are described.
摘要翻译： 用于从流体流产生电力的装置，并且更具体地用于从油井或气井井下的流中收集动力的装置包括：圆柱体或其他钝体（1），其与流动方向交叉并且支撑在一个 弹簧悬臂（3）固定在一个固定的安装座上，可自由振荡，以响应卡门涡流v从“身体”的脱落。 主体（1）和臂（3）的合成运动通过压接材料（5）转换成电能，压电材料（5）被连接到臂的挠曲部分并受其作用。 描述了来自装置的振荡的压电和感应发电的其他布置。
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公开(公告)号：US20120217845A1
公开(公告)日：2012-08-30
申请号：US13414816
申请日：2012-03-08
申请人： Ahmed Yehia Amin Abdel RAHMAN , Jonathan Geoffrey GORE , Fiona Louise LOWRIE , Richard Carson MCBRIDE
发明人： Ahmed Yehia Amin Abdel RAHMAN , Jonathan Geoffrey GORE , Fiona Louise LOWRIE , Richard Carson MCBRIDE
IPC分类号： H01L41/09 , H01L41/113
摘要： A multistage flextensional transducer includes at least one inner elongate driver member within and mechanically coupled to an inner shell that is nested within an outer shell; the inner shell comprising a pair of contact portions abutting the driver member and a pair of transmission portions on opposite sides of the inner shell between the contact portions; the outer shell being arranged so that the transmission portions act as bridging driver members between the said inner and outer shells, flexure of the outer shell being driven, on actuation of the transducer, by movement of the bridging driver members. The transducer may act as a push or pull actuator or sensor, may magnify displacement and may employ smart materials as driver members. Also cylindrical modules containing thin flextensional actuators may provide axial displacement in a downhole environment and may move a device axially along a downhole pipe or close a valve opening or inch along the pipe.
摘要翻译： 多级弯曲换能器包括至少一个内部细长驱动器构件，并且机械地联接到嵌套在外壳内的内壳; 所述内壳包括邻接所述驱动构件的一对接触部分和位于所述接触部分之间的所述内壳相对侧上的一对传动部分; 所述外壳被布置成使得所述传动部分作为所述内壳和外壳之间的桥接驱动构件，通过所述桥接驱动构件的移动，在所述换能器致动时所述外壳的挠曲被驱动。 换能器可以用作推动或拉动致动器或传感器，可以放大位移，并且可以使用智能材料作为驱动器构件。 包括薄的弯曲致动器的圆柱形模块也可以在井下环境中提供轴向位移，并且可以沿着井下管轴向移动装置，或沿管道关闭阀门开口或英寸。
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