公开(公告)号：US08074521B2

公开(公告)日：2011-12-13

申请号：US12614741

申请日：2009-11-09

申请人： Anthony D. Kurtz ,  Nora Kurtz, legal representative ,  Boaz Kochman ,  Adam Hurst ,  Tonghuo Shang

发明人： Anthony D. Kurtz ,  Boaz Kochman ,  Adam Hurst ,  Tonghuo Shang

IPC分类号： G01L13/02

CPC分类号： G01L19/00 ,  G01L9/0052 ,  G01L15/00 ,  G01L19/0609

摘要： A filter assembly for use with a static-dynamic piezoresistive pressure transducer that measures low amplitude, dynamic pressure perturbations superimposed on top of a high static pressure through the implementation of a low-pass mechanical filter assembly is disclosed. The filter assembly may comprise a dual lumen reference tube and a removable filter subassembly further comprising a porous metal filter and narrow diameter tube. The transducer, which may be capable of operating at ultra-high temperatures and in harsh environments, may comprise of a static piezoresistive pressure sensor, which measures the large pressures on the order of 200 psi and greater, and an ultrasensitive, dynamic piezoresistive pressure sensor which may capture small, high frequency pressure oscillations on the order of a few psi or less. The filter assembly may transmit static pressure to the back of the dynamic pressure sensor to cancel out the static pressure present at the front of the sensor while keeping dynamic pressure from reaching the back of the sensor. In this manner, the filter assembly enables the transducer to accurately read dynamic pressure in the presence of high static pressure without rupturing the thin diaphragm of the dynamic pressure sensor.

摘要翻译： 公开了一种与静态压阻式压力传感器一起使用的过滤器组件，其通过实施低通机械过滤器组件来测量叠加在高静态压力之上的低振幅动态压力扰动。 过滤器组件可以包括双腔参考管和可移除的过滤器子组件，其还包括多孔金属过滤器和窄直径管。 可以在超高温和恶劣环境下工作的换能器可以包括静压压力传感器，该压力传感器测量大约200psi和更大的压力，以及超灵敏的压阻压力传感器 这可以捕获小于或等于几psi的小的高频压力振荡。 过滤器组件可以将静压传递到动态压力传感器的背面，以抵消存在于传感器前部的静压力，同时保持动态压力不到达传感器的后部。 以这种方式，过滤器组件使得换能器能够在存在高静态压力的情况下准确地读取动态压力而不破坏动态压力传感器的薄膜。

公开(公告)号：US08240216B2

公开(公告)日：2012-08-14

申请号：US13161594

申请日：2011-06-16

申请人： Anthony D. Kurtz ,  Nora Kurtz, legal representative ,  Tonghuo Shang ,  Adam Hurst

发明人： Anthony D. Kurtz ,  Tonghuo Shang ,  Adam Hurst

IPC分类号： G01L9/00

CPC分类号： G01L19/0609 ,  G01L19/0681 ,  Y10T29/49005 ,  Y10T29/49007

摘要： A pressure transducer assembly for measuring pressures in high temperature environments employing an elongated tube which is terminated at one end by an acoustic micro-filter. The micro-filter is operative to absorb acoustic waves impinging on it with limited or no reflection. To improve the absorption of acoustic waves, the elongated tube may be tapered and/or mounted to a support block and further convoluted to reduce the overall size and mass of the device. A pressure transducer with a diaphragm flush may be mounted to the elongated tube and extend through to the inner wall of the tube. Hot gases propagate through the elongated tube and their corresponding pressures are measured by the transducer. The acoustic filter operates to absorb acoustic waves resultant from the hot gases, therefore enabling the pressure transducer to be mainly responsive to high frequency waves associated with the gas turbine operation.

摘要翻译： 一种用于在高温环境中测量压力的压力传感器组件，其采用细长管，其在一端由声学微滤器终止。 微滤器可以有效或无反射地吸收入射到其上的声波。 为了改善声波的吸收，细长管可以是锥形的和/或安装到支撑块上并进一步卷曲以减小装置的整体尺寸和质量。 具有隔膜齐平的压力传感器可以安装到细长管并延伸到管的内壁。 热气体通过细长管传播，其相应的压力由传感器测量。 声学滤波器用于吸收由热气体产生的声波，因此能够使压力传感器主要响应于与燃气轮机操作相关联的高频波。

公开(公告)号：US08276466B2

公开(公告)日：2012-10-02

申请号：US12751505

申请日：2010-03-31

申请人： Anthony D. Kurtz ,  Nora Kurtz, legal representative ,  Joseph VanDeWeert

发明人： Anthony D. Kurtz ,  Joseph VanDeWeert

IPC分类号： G01D7/00 ,  G01L1/22

CPC分类号： G01L5/0009 ,  F16C19/522 ,  G01L5/0019 ,  G01L5/162

摘要： A two or three axis load cell capable of measuring axial and one or more shear forces is disclosed. The load cell can comprise a force collector connected by one or more connecting rods to one or more cross pieces. The load cell can comprise a single cross piece and can measure an axial force applied to the load cell and at least one component of shear force applied to the load cell. In other embodiments, the load cell can comprise two cross pieces, disposed at disparate angles, to enable the measurement of an axial force and both components of shear force applied to the force collector. The cross pieces are equipped with a means, such as piezoresistive elements to measure their deflection due to the applied forces on the force collector. The connecting rods can be fitted with additional piezoresistors to measure the axial forces on the force collector.

摘要翻译： 公开了能够测量轴向和一个或多个剪切力的两轴或三轴称重传感器。 称重传感器可以包括通过一个或多个连接杆连接到一个或多个横档的力收集器。 测力传感器可以包括单个横截面并且可以测量施加到测力传感器的轴向力和施加到测力传感器的剪切力的至少一个分量。 在其他实施例中，测力传感器可以包括以不同角度设置的两个横截面，以便能够测量施加到力收集器的轴向力和剪切力的两个分量。 十字件配备有诸如压阻元件的装置，以测量由于在力收集器上施加的力而导致的挠曲。 连杆可以安装附加的压电电阻器来测量力收集器上的轴向力。

公开(公告)号：US08237537B2

公开(公告)日：2012-08-07

申请号：US13069222

申请日：2011-03-22

申请人： Anthony D. Kurtz ,  Nora Kurtz, legal representative

发明人： Anthony D. Kurtz

IPC分类号： G01L1/22

CPC分类号： G01L9/04 ,  G01L9/0055 ,  G01L9/06

摘要： A pressure transducer comprising a corrosion resistant metal diaphragm, having an active region, and capable of deflecting when a force is applied to the diaphragm; and a piezoresistive silicon-on-insulator sensor array disposed on a single substrate, the substrate secured to the diaphragm, the sensor array having a first outer sensor near an edge of the diaphragm at a first location and on the active region, a second outer sensor near an edge of the diaphragm at a second location and on the active region, and at least one center sensor substantially overlying a center of the diaphragm, the sensors connected in a bridge array to provide an output voltage proportional to the force applied to the diaphragm. The sensors are dielectrically isolated from the substrate.

摘要翻译： 一种压力传感器，包括具有有源区域的耐腐蚀金属隔膜，并且当向隔膜施加力时能够偏转; 以及设置在单个衬底上的压电硅绝缘体上传感器阵列，所述衬底固定到所述隔膜上，所述传感器阵列在第一位置处和所述有源区域上具有靠近所述隔膜的边缘的第一外部传感器，所述第二外部传感器阵列 在第二位置和有源区域附近的隔膜的边缘附近的传感器以及基本上覆盖隔膜的中心的至少一个中心传感器，所述传感器以桥式阵列连接以提供与施加到所述隔膜的力成比例的输出电压 隔膜 传感器与基板介电隔离。

公开(公告)号：US07975552B2

公开(公告)日：2011-07-12

申请号：US12719789

申请日：2010-03-08

申请人： Anthony D. Kurtz ,  Nora Kurtz, legal representative ,  Tonghuo Shang ,  Adam Hurst

发明人： Anthony D. Kurtz ,  Tonghuo Shang ,  Adam Hurst

IPC分类号： G01L9/00

CPC分类号： G01L19/0609 ,  G01L19/0681 ,  Y10T29/49005 ,  Y10T29/49007

摘要： It is an objective of the present invention to provide a pressure transducer assembly for measuring pressures in high temperature environments that employs an elongated tube which is terminated at one end by an acoustic micro-filter. The micro-filter has a plurality of apertures extending from one end to the other end, each aperture is of a small diameter as compared to the diameter of the transducer and the damper operates to absorb acoustic waves impinging on it with limited or no reflection. To improve the absorption of acoustic waves, the elongated tube may be tapered and/or mounted to a support block and further convoluted to reduce the overall size and mass of the device. A pressure transducer with a diaphragm flush may be mounted to the elongated tube and extend through to the inner wall of the tube. Hot gases propagate through the elongated tube and their corresponding pressures are measured by the transducer. The acoustic filter operates to absorb acoustic waves resultant from the hot gases, therefore enabling the pressure transducer to be mainly responsive to high frequency waves associated with the gas turbine operation.

摘要翻译： 本发明的目的是提供一种用于测量在高温环境中的压力的​​压力传感器组件，该压力传感器组件采用在一端由声学微滤器端接的细长管。 微滤器具有从一端延伸到另一端的多个孔，与换能器的直径相比，每个孔具有小直径，并且阻尼器用于吸收以有限或无反射的方式撞击在其上的声波。 为了改善声波的吸收，细长管可以是锥形的和/或安装到支撑块上并进一步卷曲以减小装置的整体尺寸和质量。 具有隔膜齐平的压力传感器可以安装到细长管并延伸到管的内壁。 热气体通过细长管传播，其相应的压力由传感器测量。 声学滤波器用于吸收由热气体产生的声波，因此能够使压力传感器主要响应于与燃气轮机操作相关联的高频波。

公开(公告)号：US08191425B1

公开(公告)日：2012-06-05

申请号：US12971615

申请日：2010-12-17

申请人： Anthony D. Kurtz ,  Nora Kurtz, legal representative

发明人： Anthony D. Kurtz

IPC分类号： G01L9/06

CPC分类号： G01L13/025 ,  G01L9/0052 ,  G01L9/06 ,  G01L13/00 ,  G01L15/00 ,  G01L19/0627 ,  Y10T29/49007 ,  Y10T29/49826

摘要： A gage pressure transducer comprising a first pressure sensing assembly exposed to a main pressure and a second pressure sensing assembly exposed to a reference pressure. The pressure sensing assemblies comprise half-bridge sensors and means for using an alignment glass plate with each sensor which reduces the amount of oil required for operation, which consequently reduces the back pressures caused by large volumes of oil. The pressure sensor assemblies are hermetically sealed using glass frits, therefore enabling the gage pressure transducer to robustly and accurately measure pressure in harsh environments.

摘要翻译： 一种量规压力传感器，包括暴露于主压力的第一压力感测组件和暴露于参考压力的第二压力感测组件。 压力传感组件包括半桥传感器和用于使用具有每个传感器的对准玻璃板的装置，其减少了操作所需的油量，这因此降低了由大体积的油引起的背压。 压力传感器组件使用玻璃料密封，因此能够使测量压力传感器在恶劣环境下稳健而准确地测量压力。

公开(公告)号：US08024976B2

公开(公告)日：2011-09-27

申请号：US12819958

申请日：2010-06-21

申请人： Anthony D. Kurtz ,  Nora Kurtz, legal representative

发明人： Anthony D. Kurtz

IPC分类号： G01L7/00

CPC分类号： G01L19/0645 ,  G01L15/00 ,  G01L19/0038

摘要： A combined wet-wet differential transducer and a gage pressure transducer located in the same housing, comprising a semiconductor chip which comprises a gage sensor chip on one section and a differential sensor chip on a second section. Each sensor chip has a Wheatstone bridge comprising piezoresistors and is responsive to an applied pressure. The gage chip and the differential chip are placed in a header having a front section and a back section adapted to receive a first and second pressure, respectively. The sensors are in communication with first and second pressure ports such that the absolute sensor provides an output indicative of a pressure applied to a first port and the differential sensor provides an output indicative of the pressure difference between the first and second pressure ports.

摘要翻译： 一种组合的湿湿差压换能器和位于同一壳体中的量规压力传感器，包括半导体芯片，其包括一个部分上的量规传感器芯片和在第二部分上的差分传感器芯片。 每个传感器芯片具有包括压敏电阻器的惠斯通电桥，并且响应所施加的压力。 计量芯片和差分芯片被放置在具有分别适于接收第一和第二压力的前部分和后部部分的集管中。 传感器与第一和第二压力端口连通，使得绝对传感器提供指示施加到第一端口的压力的输出，并且差动传感器提供指示第一和第二压力端口之间的压力差的输出。

公开(公告)号：US08191424B2

公开(公告)日：2012-06-05

申请号：US12877301

申请日：2010-09-08

申请人： Anthony D. Kurtz ,  Nora Kurtz, legal representative ,  Lou DeRosa ,  Robert Gardner

发明人： Anthony D. Kurtz ,  Lou DeRosa ,  Robert Gardner

IPC分类号： G01L9/06

CPC分类号： G01L19/0084 ,  G01L13/025 ,  G01L19/0645

摘要： It is an object of the present invention to provide a pressure transducer having a header wherein the header is comprised of a first section and a second section that are offset from each other. Each first and second section has a flexible diaphragm adapted to receive a first and second pressure, respectively. A central channel connects the diaphragms and a pressure sensor, located within the central channel, communicates with the channel and produces an output equal to the difference between the first and second pressures. The resultant device is a low differential pressure transducer which enables one to bring leads from the sensor out while having diaphragms of substantially the same size and diameter, therefore enabling the diaphragms to exhibit the same back pressure and be equally compliant.

摘要翻译： 本发明的目的是提供一种具有头部的压力传感器，其中头部由彼此偏移的第一部分和第二部分组成。 每个第一和第二部分具有适于分别接收第一和第二压力的柔性隔膜。 中心通道连接隔膜和位于中心通道内的压力传感器与通道连通并产生等于第一和第二压力之差的输出。 所得到的装置是低压差换能器，其使得能够将传感器的引线带出，同时具有基本上相同尺寸和直径的隔膜，因此使得隔膜具有相同的背压并且具有相同的顺应性。