公开(公告)号：US08177474B2

公开(公告)日：2012-05-15

申请号：US11768211

申请日：2007-06-26

申请人： Emad Andarawis Andarawis ,  William Lee Herron ,  Samhita Dasgupta ,  John Harry Down ,  Mahadevan Balasubramaniam ,  David So Keung Chan ,  David Walter Parry

发明人： Emad Andarawis Andarawis ,  William Lee Herron ,  Samhita Dasgupta ,  John Harry Down ,  Mahadevan Balasubramaniam ,  David So Keung Chan ,  David Walter Parry

IPC分类号： F01D11/20 ,  F01D11/22 ,  F01D11/24

CPC分类号： G01B7/14 ,  F01D9/00 ,  F01D11/20 ,  F01D15/02 ,  F01D17/20 ,  F01D21/003 ,  F04D27/001 ,  F05D2220/40 ,  F05D2260/80 ,  F05D2270/11 ,  F05D2270/305 ,  F05D2270/42

摘要： A method of detecting rubs during operation of a turbomachine comprising at least one rotating object having a tip and a shelf is provided. The method includes generating signals representative of a sensed parameter and processing the signals to generate height versus time data for the tip. The height of the tip corresponds to the distance between the tip and the shelf. The method further includes monitoring the height versus time data, in order to determine whether a change in the height data exceeds a threshold value, and detecting a rub of the rotating object(s) on a second object, when the change in the height data exceeds the threshold value. A rub detection system for a turbomachine and a turbine engine system with rub detection are also provided.

摘要翻译： 提供了一种在涡轮机操作期间检测摩擦的方法，包括至少一个具有尖端和搁架的旋转物体。 该方法包括产生表示感测参数的信号，并处理信号以产生尖端的高度与时间数据。 尖端的高度对应于尖端和搁板之间的距离。 该方法还包括监视高度与时间数据，以便确定高度数据中的变化是否超过阈值，并且当高度数据的改变检测到第二物体上的旋转物体的摩擦时 超过阈值。 还提供了一种用于涡轮机的摩擦检测系统和具有摩擦检测的涡轮发动机系统。

公开(公告)号：US08121813B2

公开(公告)日：2012-02-21

申请号：US12361469

申请日：2009-01-28

申请人： Zhiyuan Ren ,  Wayne Charles Hasz ,  Emad Andarawis Andarawis ,  David So Keung Chan ,  David Mulford Shaddock ,  John Harry Down ,  Samhita Dasgupta ,  William Lee Herron ,  Cheryl Lynn Herron, legal representative ,  David Walter Parry ,  David Richard Esler ,  Mahadevan Balasubramaniam

发明人： Zhiyuan Ren ,  Wayne Charles Hasz ,  Emad Andarawis Andarawis ,  David So Keung Chan ,  David Mulford Shaddock ,  John Harry Down ,  Samhita Dasgupta ,  William Lee Herron ,  David Walter Parry ,  David Richard Esler ,  Mahadevan Balasubramaniam

IPC分类号： G06F11/00

CPC分类号： G01B7/14 ,  F01D21/003

摘要： A processing system for clearance estimation in a rotating machine includes one or more sensors and one or more digital signal processors for calculating the estimated clearance. The processing system may include techniques for obtaining real-time clearance estimates and techniques for obtaining averaged clearance estimates. Aspects of the processing system may also include a method of switching between real-time clearance estimates and averaged clearance estimates depending on the operating conditions of the rotating machine. Other aspects of the processing system include the use of two digital signal processors: a first digital signal processor configured to receive signals from a clearance sensor and perform a first set of high speed processing tasks, and a second digital signal processor configured to receive signals from the first digital signal processor and perform a second set of lower speed processing tasks.

摘要翻译： 用于旋转机器中的间隙估计的处理系统包括一个或多个传感器和用于计算估计间隙的一个或多个数字信号处理器。 处理系统可以包括用于获得实时清除率估计的技术和用于获得平均清除率估计的技术。 处理系统的方面还可以包括根据旋转机器的操作条件在实时间隙估计和平均间隙估计之间切换的方法。 处理系统的其他方面包括使用两个数字信号处理器：第一数字信号处理器，被配置为从间隙传感器接收信号并执行第一组高速处理任务;以及第二数字信号处理器，被配置为从 第一数字信号处理器并执行第二组较低速处理任务。

公开(公告)号：US07853427B2

公开(公告)日：2010-12-14

申请号：US12118904

申请日：2008-05-12

申请人： David So Keung Chan ,  Emad Andarawis Andarawis

发明人： David So Keung Chan ,  Emad Andarawis Andarawis

IPC分类号： G01B5/02

CPC分类号： G01B7/14 ,  G01P3/48 ,  G01P3/483

摘要： A method of estimating a clearance between at least one rotating object of a rotary machine and a second object is provided. The method includes measuring an operating parameter of the rotary machine. The method also includes obtaining signals corresponding to the at least one rotating object across multiple revolutions in time, wherein the number of the revolutions is determined based upon the measured operating parameter. The method further includes generating waveforms corresponding to the at least one rotating object from the obtained signals for the revolutions. The method also includes estimating the clearance between the second object and the at least one rotating object based upon the generated waveforms.

摘要翻译： 提供一种估计旋转机械的至少一个旋转体与第二物体之间的间隙的方法。 该方法包括测量旋转机器的操作参数。 该方法还包括在时间上跨多个旋转对象获得对应于至少一个旋转对象的信号，其中基于测量的操作参数来确定转数。 该方法还包括从所获得的转数的信号产生与至少一个旋转物体对应的波形。 该方法还包括基于所产生的波形估计第二物体与至少一个旋转物体之间的间隙。

公开(公告)号：US07852092B2

公开(公告)日：2010-12-14

申请号：US12054565

申请日：2008-03-25

申请人： Emad Andarawis Andarawis ,  Chukwueloka Obiora Umeh

发明人： Emad Andarawis Andarawis ,  Chukwueloka Obiora Umeh

IPC分类号： G01R27/08

CPC分类号： G01N27/041

摘要： A system to measure thickness of a shroud is provided. The system includes at least one resistive element embedded within the shroud. The at least one resistive element is embedded within a thermal barrier coating layer deposited on a base portion of the shroud and an abradable coating layer deposited on the thermal barrier coating layer or directly into the shroud. The system also includes an impedance measurement device that measures a total resistance associated with the at least one resistive element.

摘要翻译： 提供了一种测量护罩厚度的系统。 该系统包括嵌入罩内的至少一个电阻元件。 所述至少一个电阻元件被嵌入到沉积在所述护罩的基部上的热障涂层中，以及沉积在所述热障涂层上或直接进入所述护罩中的可磨损涂层。 该系统还包括测量与至少一个电阻元件相关联的总电阻的阻抗测量装置。

公开(公告)号：US07722310B2

公开(公告)日：2010-05-25

申请号：US11015258

申请日：2004-12-17

申请人： Mahadevan Balasubramaniam ,  Emad Andarawis Andarawis ,  James Anthony Ruud ,  Samhita Dasgupta ,  Minesh Ashok Shah

发明人： Mahadevan Balasubramaniam ,  Emad Andarawis Andarawis ,  James Anthony Ruud ,  Samhita Dasgupta ,  Minesh Ashok Shah

IPC分类号： F01D11/20

CPC分类号： G01B7/14

摘要： A system for measuring clearance between a first object and a second object is provided. The system includes a sensor configuration to generate a first signal representative of a first sensed parameter and a second signal representative of a second sensed parameter. The system also includes a clearance measurement unit configured to process the first and second signals based upon a ratiometric technique to calculate clearance between the first and second objects.

摘要翻译： 提供了一种用于测量第一物体和第二物体之间的间隙的系统。 该系统包括用于产生表示第一感测参数的第一信号和表示第二感测参数的第二信号的传感器配置。 该系统还包括间隙测量单元，其被配置为基于比例技术来处理第一和第二信号以计算第一和第二物体之间的间隙。

公开(公告)号：US07404331B2

公开(公告)日：2008-07-29

申请号：US11528236

申请日：2006-09-27

申请人： James Anthony Ruud ,  Emad Andarawis Andarawis ,  Samhita Dasgupta ,  Minesh Ashok Shah ,  Mahadevan Balasubramaniam

发明人： James Anthony Ruud ,  Emad Andarawis Andarawis ,  Samhita Dasgupta ,  Minesh Ashok Shah ,  Mahadevan Balasubramaniam

IPC分类号： G01L9/10

CPC分类号： H01F17/03 ,  H01F17/0006 ,  H01F17/0013 ,  H01F27/2804 ,  H01F41/041

摘要： A sensor assembly is provided. The sensor assembly includes a sensor configured to measure an impedance value representative of a sensed parameter and a transformer coupled to the sensor. The transformer includes at least one ceramic substrate and at least one electrically conductive line disposed on the ceramic substrate to form at least one winding. The electrically conductive line includes an electrically conductive material.

公开(公告)号：US20080072681A1

公开(公告)日：2008-03-27

申请号：US11528236

申请日：2006-09-27

申请人： James Anthony Ruud ,  Emad Andarawis Andarawis ,  Samhita Dasgupta ,  Minesh Ashok Shah ,  Mahadevan Balasubramaniam

发明人： James Anthony Ruud ,  Emad Andarawis Andarawis ,  Samhita Dasgupta ,  Minesh Ashok Shah ,  Mahadevan Balasubramaniam

IPC分类号： G01L9/10

CPC分类号： H01F17/03 ,  H01F17/0006 ,  H01F17/0013 ,  H01F27/2804 ,  H01F41/041

摘要： A sensor assembly is provided. The sensor assembly includes a sensor configured to measure an impedance value representative of a sensed parameter and a transformer coupled to the sensor. The transformer includes at least one ceramic substrate and at least one electrically conductive line disposed on the ceramic substrate to form at least one winding. The electrically conductive line includes an electrically conductive material.

摘要翻译： 提供传感器组件。 传感器组件包括被配置为测量表示感测参数的阻抗值的传感器和耦合到传感器的变压器。 变压器包括至少一个陶瓷衬底和设置在陶瓷衬底上以形成至少一个绕组的至少一个导电线。 导电线包括导电材料。

公开(公告)号：US07333913B2

公开(公告)日：2008-02-19

申请号：US11167434

申请日：2005-06-27

申请人： Emad Andarawis Andarawis ,  Mahadevan Balasubramaniam ,  Todd Alan Anderson ,  Samhita Dasgupta ,  David Mulford Shaddock ,  Shobhana Mani ,  Jie Jiang

发明人： Emad Andarawis Andarawis ,  Mahadevan Balasubramaniam ,  Todd Alan Anderson ,  Samhita Dasgupta ,  David Mulford Shaddock ,  Shobhana Mani ,  Jie Jiang

IPC分类号： G01B5/14

CPC分类号： G01B7/144

摘要： A clearance measurement system is provided. The clearance measurement system includes a reference geometry disposed on a first object having an otherwise continuous surface geometry and a sensor disposed on a second object, wherein the sensor is configured to generate a first signal representative of a first sensed parameter from the first object and a second signal representative of a second sensed parameter from the reference geometry. The clearance measurement system also includes a processing unit configured to process the first and second signals to estimate a clearance between the first and second objects based upon a measurement difference between the first and second sensed parameters.

摘要翻译： 提供了间隙测量系统。 间隙测量系统包括设置在具有另外连续的表面几何形状的第一物体上的参考几何形状和设置在第二物体上的传感器，其中传感器被配置为产生表示来自第一物体的第一感测参数的第一信号，以及 第二信号表示来自参考几何的第二感测参数。 间隙测量系统还包括处理单元，其被配置为基于第一和第二感测参数之间的测量差异来处理第一和第二信号以估计第一和第二对象之间的间隙。

公开(公告)号：US07180305B2

公开(公告)日：2007-02-20

申请号：US11012508

申请日：2004-12-14

申请人： Emad Andarawis Andarawis ,  James Anthony Ruud ,  Samhita Dasgupta ,  Mahadevan Balasubramaniam ,  Charles Rickards

发明人： Emad Andarawis Andarawis ,  James Anthony Ruud ,  Samhita Dasgupta ,  Mahadevan Balasubramaniam ,  Charles Rickards

IPC分类号： G01R27/26

CPC分类号： G01D5/24

摘要： A technique for operating a sensor system is provided. The method includes exciting a first sensor with a first excitation signal at a first frequency and exciting a second sensor with a second excitation signal at a second frequency. The technique also includes combining a first measurement signal generated from the first sensor with a second measurement signal generated from the second sensor to determine a sensed parameter. The technique may be employed for reducing crosstalk between closely proximate sensors, such as capacitive probes, and may serve to determine distances within operating machines, such as turbine systems.

摘要翻译： 提供了一种用于操作传感器系统的技术。 该方法包括以第一频率激励具有第一激励信号的第一传感器，并以第二频率以第二激励信号激励第二传感器。 该技术还包括将从第一传感器产生的第一测量信号与从第二传感器产生的第二测量信号组合以确定感测参数。 该技术可用于减少紧密接近的传感器（例如电容式探针）之间的串扰，并且可用于确定操作机器（例如涡轮机系统）内的距离。

公开(公告)号：US06452164B1

公开(公告)日：2002-09-17

申请号：US09522573

申请日：2000-03-10

申请人： Emad Andarawis Andarawis ,  Paul Andrew Frank ,  Shankar Visranathan Guru ,  Ahmad Nadeem Ishaque ,  Douglas Ray Powell

发明人： Emad Andarawis Andarawis ,  Paul Andrew Frank ,  Shankar Visranathan Guru ,  Ahmad Nadeem Ishaque ,  Douglas Ray Powell

IPC分类号： G01T1208

CPC分类号： G01T1/208

摘要： An apparatus and method used to calibrate a gamma camera include an energy source and intensity selector and an energy weighting device. The energy source provides an energy output, such as an electrical current. The intensity selector is connected to the energy source and adjusts the energy output to a predetermined energy level that corresponds to an intensity of a predetermined radioactive source. The energy weighting device is also connected to the energy source and gamma camera, and the spatial compensator creates calibration signals from the energy output of the energy source. The calibration signals are supplied to the gamma camera and used during calibration of the gamma camera in lieu of energy signals produced by the gamma camera in response to a radioactive source.

摘要翻译： 用于校准γ照相机的装置和方法包括能量源和强度选择器以及能量加权装置。 能量源提供能量输出，例如电流。 强度选择器连接到能量源，并将能量输出调节到与预定放射源的强度对应的预定能量水平。 能量加权装置还连接到能量源和伽马相机，并且空间补偿器从能量源的能量输出创建校准信号。 校准信号被提供给伽马相机，并且在伽马相机的校准期间用于代替伽马相机响应于放射源产生的能量信号。