公开(公告)号：US09137462B2

公开(公告)日：2015-09-15

申请号：US13617416

申请日：2012-09-14

申请人： Gang Li ,  Yakup Genc ,  Erwan Baleine ,  Dennis H. Lemieux

发明人： Gang Li ,  Yakup Genc ,  Erwan Baleine ,  Dennis H. Lemieux

IPC分类号： G01N29/27 ,  H04N5/33 ,  G06T7/60 ,  G06T7/00

CPC分类号： H04N5/33 ,  G01N2223/63 ,  G06T7/0004 ,  G06T7/60 ,  G06T7/62 ,  G06T2207/10048 ,  G06T2207/20061 ,  G06T2207/20096 ,  G06T2207/20101 ,  G06T2207/30164

摘要： Two adjacent objects with a gap between the objects rotate in a hot atmosphere with a temperature greater than 300 F in a gas turbine. Automatic and accurate contactless measurement of the gap is performed by taking images of the gap. An image, preferably an infra-red image is taken from the gap, a processor extracts the two edges from the image of the gap. The processor also determines a line through the pixels of an edge by applying a Hough transform on the pixels. The edges are substantially parallel. A line substantially perpendicular to the lines is also determined. Using the substantially parallel lines and the line substantially perpendicular to the substantially parallel lines the processor determines a width of the gap.

摘要翻译： 在燃气轮机中，具有物体之间的间隙的两个相邻物体在温度大于300°F的热气氛中旋转。 通过拍摄间隙的图像来进行间隙的自动和准确的非接触式测量。 从间隙中取出图像，优选地是红外图像，处理器从间隙的图像中提取两个边缘。 处理器还通过在像素上应用霍夫变换来确定穿过边缘的像素的线。 边缘基本上平行。 还确定了基本上垂直于线的线。 使用基本平行的线和基本上垂直于基本上平行的线的线，处理器确定间隙的宽度。

公开(公告)号：US20150132102A1

公开(公告)日：2015-05-14

申请号：US14077338

申请日：2013-11-12

申请人： Dennis H. Lemieux ,  Vinay Jonnalagadda ,  Paul J. Zombo

发明人： Dennis H. Lemieux ,  Vinay Jonnalagadda ,  Paul J. Zombo

IPC分类号： F02C7/00

CPC分类号： F02C7/00 ,  F05D2260/80 ,  F05D2270/303

摘要： Apparatus and method for determining a two-dimensional temperature distribution in a cross-sectional path of a hot-temperature flow in a turbine engine (10). A grid (22, 24, 38) is located in a path of a hot-temperature flow in the turbine engine. A thermal imager (34) has a field of view configured to sense infrared emissions from the grid. A processor (50) is configured to generate data indicative of a two-dimensional temperature distribution in a cross-sectional path of the flow based on the sensed infrared emissions.

摘要翻译： 用于确定涡轮发动机（10）中的热流的横截面路径中的二维温度分布的装置和方法。 格栅（22,24,38）位于涡轮发动机中的热温流的路径中。 热像仪（34）具有被配置为感测来自电网的红外发射的视场。 处理器（50）被配置为基于所感测的红外发射，在流的横截面路径中产生指示二维温度分布的数据。

公开(公告)号：US20130194412A1

公开(公告)日：2013-08-01

申请号：US13362387

申请日：2012-01-31

申请人： Clifford Hatcher ,  Forrest R. Ruhge ,  Dennis H. Lemieux ,  Himanshu Bhatnagar ,  Yakup Genc ,  Richard Hatley

发明人： Clifford Hatcher ,  Forrest R. Ruhge ,  Dennis H. Lemieux ,  Himanshu Bhatnagar ,  Yakup Genc ,  Richard Hatley

IPC分类号： H04N7/18

CPC分类号： G01N21/954 ,  F01D21/003 ,  G01M15/14 ,  G02B23/2476

摘要： Internal components of power generation machinery, such as gas and steam turbines are inspected with an optical camera inspection system that is capable of automatically positioning the camera field of view (FOV) to an area of interest within the machinery along a pre-designated navigation path and capturing images without human intervention. Automatic camera positioning and image capture can be initiated automatically or after receipt of operator permission. The pre-designated navigation path can be defined by operator manual positioning of an inspection scope within the power machine or a similar one of the same type and recording of positioning steps for future replication. The navigation path can also be defined by virtual simulation. The inspection system includes an articulated multi-axis inspection scope.

摘要翻译： 使用光学相机检查系统来检查诸如燃气和蒸汽轮机的发电机器的内部部件，该相机检查系统能够沿着预先指定的导航路径将相机视场（FOV）自动定位在机器内的感兴趣区域 并且在没有人为干预的情况下拍摄图像。 自动摄像机定位和图像捕获可以自动启动，也可以在收到操作者许可之后启动。 预先指定的导航路径可以通过操作员在动力机器内手动定位检查范围或相同类型的类似的和记录定位步骤以进行将来复制来定义。 导航路径也可以通过虚拟模拟来定义。 检查系统包括铰接式多轴检查范围。

公开(公告)号：US08439630B2

公开(公告)日：2013-05-14

申请号：US12727582

申请日：2010-03-19

申请人： Dennis H. Lemieux ,  Jan P. Smed ,  James P. Williams ,  Vinay Jonnalagadda

发明人： Dennis H. Lemieux ,  Jan P. Smed ,  James P. Williams ,  Vinay Jonnalagadda

IPC分类号： G02B23/00 ,  F01D25/00

CPC分类号： F01D21/003 ,  F05D2260/80 ,  G01N21/15 ,  G01N21/85 ,  G01N21/954 ,  G01N2021/151 ,  G01N2201/08 ,  G02B23/2492

摘要： The monitoring system for a gas turbine engine including a viewing tube assembly having an inner end and an outer end. The inner end is located adjacent to a hot gas flow path within the gas turbine engine and the outer end is located adjacent to an outer casing of the gas turbine engine. An aperture wall is located at the inner end of the viewing tube assembly and an optical element is located within the viewing tube assembly adjacent to the inner end and is spaced from the aperture wall to define a cooling and purge chamber therebetween. An aperture is defined in the aperture wall for passage of light from the hot gas flow path to the optical element. Swirl passages are defined in the viewing tube assembly between the aperture wall and the optical element for passage of cooling air from a location outside the viewing tube assembly into the chamber, wherein swirl passages effect a swirling movement of air in a circumferential direction within the chamber.

摘要翻译： 一种用于燃气涡轮发动机的监测系统，其包括具有内端和外端的观察管组件。 内端位于燃气涡轮发动机内的热气流路径附近，外端位于燃气涡轮发动机的外壳附近。 孔壁位于观察管组件的内端，并且光学元件位于观察管组件内邻近内端并且与孔壁间隔开以在其间限定冷却和净化室。 在孔壁中限定有一个孔，用于使光从热气流通道通过到光学元件。 涡流通道限定在孔壁组件和光学元件之间，用于使冷却空气从观察管组件外部的位置进入腔室，其中旋转通道在腔室内沿圆周方向起作用的旋转运动 。

公开(公告)号：US20130088587A1

公开(公告)日：2013-04-11

申请号：US13617416

申请日：2012-09-14

申请人： Gang Li ,  Yakup Genc ,  Erwan Baleine ,  Dennis H. Lemieux

发明人： Gang Li ,  Yakup Genc ,  Erwan Baleine ,  Dennis H. Lemieux

IPC分类号： H04N5/33

CPC分类号： H04N5/33 ,  G01N2223/63 ,  G06T7/0004 ,  G06T7/60 ,  G06T7/62 ,  G06T2207/10048 ,  G06T2207/20061 ,  G06T2207/20096 ,  G06T2207/20101 ,  G06T2207/30164

摘要： Two adjacent objects with a gap between the objects rotate in a hot atmosphere with a temperature greater than 300 F in a gas turbine. Automatic and accurate contactless measurement of the gap is performed by taking images of the gap. An image, preferably an infra-red image is taken from the gap, a processor extracts the two edges from the image of the gap. The processor also determines a line through the pixels of an edge by applying a Hough transform on the pixels. The edges are substantially parallel. A line substantially perpendicular to the lines is also determined. Using the substantially parallel lines and the line substantially perpendicular to the substantially parallel lines the processor determines a width of the gap.

摘要翻译： 在燃气轮机中，具有物体之间的间隙的两个相邻物体在温度大于300°F的热气氛中旋转。 通过拍摄间隙的图像来进行间隙的自动和准确的非接触式测量。 从间隙中取出图像，优选地是红外图像，处理器从间隙的图像中提取两个边缘。 处理器还通过在像素上应用霍夫变换来确定穿过边缘的像素的线。 边缘基本上平行。 还确定了基本上垂直于线的线。 使用基本平行的线和基本上垂直于基本上平行的线的线，处理器确定间隙的宽度。

公开(公告)号：US08063372B2

公开(公告)日：2011-11-22

申请号：US12699936

申请日：2010-02-04

申请人： Dennis H. Lemieux ,  Paul J. Zombo ,  Vinay Jonnalagadda

发明人： Dennis H. Lemieux ,  Paul J. Zombo ,  Vinay Jonnalagadda

IPC分类号： G01J5/02

CPC分类号： G02B13/16 ,  G01D18/008 ,  G01J5/0022 ,  G01J5/0088 ,  G01J5/02 ,  G01J5/025 ,  G01J5/04 ,  G01J5/042 ,  G01J5/08 ,  G01J5/0803 ,  G01J5/0846

摘要： Apparatus and method for temperature mapping a rotating component (12) in a high temperature combustion environment. The apparatus includes a thermal imager (14) having a field of view to sense infrared (IR) emissions. Emissivity of a surface of the component is subject to variation in the combustion environment. A radiance emitter (18) defines a spot within the field of view of the thermal imager. The spot indicates a respective emissivity value. A processor (30) is connected to the thermal imager to generate a radiance map of the component based on the IR emissions from the component. The processor includes a thermal calibration module configured to calibrate the radiance map based on the emissivity value of the spot within the field of view of the thermal imager to generate a calibrated thermal map of the component that displays absolute temperature over the surface of the component.

摘要翻译： 用于在高温燃烧环境中对旋转部件（12）进行温度映射的装置和方法。 该装置包括具有感测红外（IR）发射的视野的热像仪（14）。 部件表面的发射率在燃烧环境中会发生变化。 辐射发射器（18）限定了热像仪的视野内的光点。 该点表示各自的发射率值。 处理器（30）连接到热成像仪，以基于来自组件的IR发射来生成部件的辐射图。 处理器包括热校准模块，其被配置为基于热成像仪的视场内的光斑的发射率值来校准辐射图，以产生在组件的表面上显示绝对温度的部件的校准热图。

公开(公告)号：US07294817B2

公开(公告)日：2007-11-13

申请号：US11122568

申请日：2005-05-05

申请人： Matthias Voigt ,  Martin Zarzycki ,  Hans-Gerd Brummel ,  Dennis H. Lemieux ,  Visvanathan Ramesh

发明人： Matthias Voigt ,  Martin Zarzycki ,  Hans-Gerd Brummel ,  Dennis H. Lemieux ,  Visvanathan Ramesh

IPC分类号： H01L27/00

CPC分类号： H04N5/367 ,  H04N5/33 ,  H04N5/3656

摘要： An imaging system (110) for imaging a scene with a detector array (104) having an array of imaging elements is provided. The imaging system (110) includes an image estimation module (202) for generating a plurality estimates of uncorrupted images based upon a plurality of noisy images generated by the detector array (104). The imaging system (110) further includes a parameter determination module (204) for determining one or more nonuniformity correction parameters based upon the estimates of uncorrupted images.

摘要翻译： 提供一种用于利用具有成像元件阵列的检测器阵列（104）对场景成像的成像系统（110）。 成像系统（110）包括图像估计模块（202），用于基于由检测器阵列（104）生成的多个噪声图像来生成未损坏图像的多个估计。 成像系统（110）还包括参数确定模块（204），用于基于未破坏的图像的估计来确定一个或多个不均匀性校正参数。

公开(公告)号：US10704958B2

公开(公告)日：2020-07-07

申请号：US13274766

申请日：2011-10-17

申请人： Paul J. Zombo ,  Dennis H. Lemieux ,  Clifford Hatcher

发明人： Paul J. Zombo ,  Dennis H. Lemieux ,  Clifford Hatcher

IPC分类号： G01J5/00 ,  G01J5/08

摘要： A method for monitoring a high-temperature region of interest in a turbine engine (10) is provided. The method includes providing an internally-cooled stationary vane (12). The method may further include locating at least one monitoring port (14) in the stationary vane and operatively connecting a monitoring instrument (16) to the monitoring port to provide a field of view of a region of interest.

公开(公告)号：US08786848B2

公开(公告)日：2014-07-22

申请号：US13101338

申请日：2011-05-05

申请人： Clifford Hatcher ,  Forrest R. Ruhge ,  Ian T. Doran ,  Robert G. Shannon ,  Dennis H. Lemieux

发明人： Clifford Hatcher ,  Forrest R. Ruhge ,  Ian T. Doran ,  Robert G. Shannon ,  Dennis H. Lemieux

IPC分类号： G01N21/00

CPC分类号： F01D21/003 ,  F01D9/023 ,  F23R2900/00019 ,  H04N7/183

摘要： An inspection system formed at least from an inspection system housing including at least one internal chamber that supports an extendible camera support shaft extending distally through a pilot nozzle port into a combustor of a gas turbine engine is disclosed. The inspection system may include a camera capable of capturing high quality images together with position coordinates. Thus, the inspection system enables images in a combustor of a gas turbine engine to be captured and recaptured at a subsequent outage so that the images may be analyzed and compared for preventive maintenance, troubleshooting, and the like. The inspection system may include three degrees of freedom for the camera mounted on the extendible camera support shaft.

摘要翻译： 公开了一种至少从检查系统壳体形成的检查系统，所述检查系统壳体包括至少一个内部室，所述至少一个内部室支撑通过导向喷嘴端口向远侧延伸到燃气涡轮发动机的燃烧器中的可延伸的相机支撑轴。 检查系统可以包括能够与位置坐标一起捕获高质量图像的相机。 因此，检查系统使燃气涡轮发动机的燃烧器中的图像在随后的中断时被捕获并重新捕获，使得可以分析和比较图像以进行预防性维护，故障排除等。 检查系统可以包括安装在可延伸相机支撑轴上的相机的三个自由度。

公开(公告)号：US20130194413A1

公开(公告)日：2013-08-01

申请号：US13362417

申请日：2012-01-31

申请人： Clifford Hatcher ,  Forrest R. Ruhge ,  Dennis H. Lemieux ,  Himanshu Bhatnagar ,  Yakup Genc ,  Richard Hatley

发明人： Clifford Hatcher ,  Forrest R. Ruhge ,  Dennis H. Lemieux ,  Himanshu Bhatnagar ,  Yakup Genc ,  Richard Hatley

IPC分类号： H04N7/18

CPC分类号： G01N21/954 ,  G02B23/2476 ,  H04N7/183 ,  H04N2005/2255

摘要： Internal components of power generation machinery, such as gas and steam turbines are inspected with an optical camera inspection system that is capable of automatically positioning the camera field of view (FOV) to an area of interest within the machinery along a pre-designated navigation path and capturing images without human intervention. Automatic camera positioning and image capture can be initiated automatically or after receipt of operator permission. The pre-designated navigation path can be defined by operator manual positioning of an inspection scope within the power machine or a similar one of the same type and recording of positioning steps for future replication. The navigation path can also be defined by virtual simulation.

摘要翻译： 使用光学相机检查系统来检查诸如燃气和蒸汽轮机的发电机器的内部部件，该相机检查系统能够沿着预先指定的导航路径将摄像机视场（FOV）自动定位在机器内的感兴趣区域 并且在没有人为干预的情况下拍摄图像。 自动摄像机定位和图像捕获可以自动启动，也可以在收到操作者许可之后启动。 预先指定的导航路径可以通过操作员在动力机器内手动定位检查范围或相同类型的类似的和记录定位步骤以进行将来复制来定义。 导航路径也可以通过虚拟模拟来定义。