公开(公告)号：US07987725B2

公开(公告)日：2011-08-02

申请号：US11923748

申请日：2007-10-25

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: G01H11/00

CPC classification number: G01H1/003 ,  G01H1/08

Abstract: A method of matching sensors in a multi-probe blade vibration monitor for a turbine. The method includes providing at least two probes mounted in a casing of the turbine adjacent to a rotating blade structure of the turbine. Targets are provided on radially outer portions of the blade structure. Each of the probes includes a sensor generating signals corresponding to target passing events, and a set of synchronous harmonics of the rotational speed of the rotor are produced for each sensor. The position of the sensors is adjusted such that the sets of harmonics of the sensors are substantially matched, indicating that the positions of the sensors are matched.

Abstract translation: 一种用于涡轮机的多探针叶片振动监测器中匹配传感器的方法。 该方法包括提供安装在涡轮机壳体中的至少两个探针，其与涡轮机的旋转叶片结构相邻。 靶设置在叶片结构的径向外部。 每个探头包括产生对应于目标通过事件的信号的传感器，并且为每个传感器产生一组转子的转速的同步谐波。 调整传感器的位置，使得传感器的谐波组合基本匹配，表明传感器的位置匹配。

公开(公告)号：US07836772B2

公开(公告)日：2010-11-23

申请号：US11861582

申请日：2007-09-26

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: G01H11/00

CPC classification number: G01H1/006

Abstract: A method and apparatus for monitoring vibrations in a blade structure of a turbine including generating signals from a probe located adjacent to a radial outer edge of the blade structure to provide signals corresponding to vibrations at predetermined locations along the tips of the blades. A leading edge of a blade tip is detected during a blade tracking operation, and a known location along the length of the blade tips is monitored during a vibration measurement operation. The measurement operation may be performed simultaneously with the tracking operation to provide measurements as the axial location of the blades change during transitional modes of operation of the turbine.

Abstract translation: 一种用于监测涡轮机叶片结构中的振动的方法和装置，包括从位于叶片结构的径向外边缘附近的探头产生信号，以提供对应于沿叶片尖端的预定位置的振动的信号。 在叶片跟踪操作期间检测叶片尖端的前缘，并且在振动测量操作期间监测沿叶片尖端的长度的已知位置。 测量操作可以与跟踪操作同时进行，以在叶片的轴向位置在涡轮机的过渡操作模式期间改变时提供测量值。

公开(公告)号：US20090078051A1

公开(公告)日：2009-03-26

申请号：US11861532

申请日：2007-09-26

Applicant: Michael Twerdochlib ,  John F. DeMartini

Inventor： Michael Twerdochlib ,  John F. DeMartini

IPC: G01H1/00 ,  G01H11/00

CPC classification number: G01H1/003

Abstract: A method of monitoring vibrations in a blade structure of a turbine including generating signals from a sensor located adjacent to a radial outer edge of the blade structure to sense passage of targets located on the blade structure. The sensor is mounted eccentrically and the signals are obtained with the sensor located at different angular positions. In a first aspect of the invention, the signals from the sensor are used to determine a target slope angle of a target on a first turbine blade during operation of the turbine. In a second aspect of the invention, the signals from the sensor are used to position the sensor in response to a sensed variation in the axial position of the target on the first turbine blade.

Abstract translation: 一种监测涡轮机叶片结构中的振动的方法，包括从位于叶片结构的径向外边缘附近的传感器产生信号，以感测位于叶片结构上的目标的通过。 传感器偏心安装，传感器位于不同角度位置时获得信号。 在本发明的第一方面，来自传感器的信号用于在涡轮机运行期间确定目标在第一涡轮叶片上的目标倾斜角。 在本发明的第二方面，来自传感器的信号用于响应于目标在第一涡轮叶片上的轴向位置的感测变化来定位传感器。

公开(公告)号：US07250776B2

公开(公告)日：2007-07-31

申请号：US11516904

申请日：2006-09-07

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: G01R27/08 ,  G01N27/00

CPC classification number: G01B7/18 ,  G01N2203/0664

Abstract: Aspects of the invention relate to a system for assessing the condition of a thermal barrier coating on a turbine vane during engine operation. According to embodiments of the invention, one or more wires can be passed along the airfoil portion of the vane. The wires can extend over, within, or beneath the thermal coating. An electrical current can be passed along the wires, and electrical resistance can be measured across the wires. Thus, if a portion of the thermal coating becomes damaged, then the wires located in that area may break. A disconnect in the wires can lead to an increase in resistance across the wires, which can alert an operator to a problem. Some assessment systems can provide a general indication of the magnitude of damage and whether the damage is spreading.

Abstract translation: 本发明的方面涉及一种用于在发动机操作期间评估涡轮叶片上的热障涂层的状况的系统。 根据本发明的实施例，可以沿叶片的翼型部分通过一根或多根线。 电线可以在热涂层之上，内部或之下延伸。 可以沿着导线传递电流，并且可以跨导线测量电阻。 因此，如果热涂层的一部分损坏，那么位于该区域中的电线可能会断裂。 电线断开可导致电线上的电阻增加，这可能会导致操作员出现问题。 一些评估系统可以提供破坏程度的一般性指标，以及损害是否扩散。

公开(公告)号：US20070126434A1

公开(公告)日：2007-06-07

申请号：US11516904

申请日：2006-09-07

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: G01R27/08

CPC classification number: G01B7/18 ,  G01N2203/0664

Abstract: Aspects of the invention relate to a system for assessing the condition of a thermal barrier coating on a turbine vane during engine operation. According to embodiments of the invention, one or more wires can be passed along the airfoil portion of the vane. The wires can extend over, within, or beneath the thermal coating. An electrical current can be passed along the wires, and electrical resistance can be measured across the wires. Thus, if a portion of the thermal coating becomes damaged, then the wires located in that area may break. A disconnect in the wires can lead to an increase in resistance across the wires, which can alert an operator to a problem. Some assessment systems can provide a general indication of the magnitude of damage and whether the damage is spreading.

Abstract translation: 本发明的方面涉及一种用于在发动机操作期间评估涡轮叶片上的热障涂层的状况的系统。 根据本发明的实施例，可以沿叶片的翼型部分通过一根或多根线。 电线可以在热涂层之上，内部或之下延伸。 可以沿着导线传递电流，并且可以跨导线测量电阻。 因此，如果热涂层的一部分损坏，那么位于该区域中的电线可能会断裂。 电线断开可导致电线上的电阻增加，这可能会导致操作员出现问题。 一些评估系统可以提供破坏程度的一般性指标，以及损害是否扩散。

公开(公告)号：US20060171806A1

公开(公告)日：2006-08-03

申请号：US11049240

申请日：2005-02-02

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: B64C11/30

CPC classification number: G01H1/006 ,  G01H9/00

Abstract: The claimed invention provides a blade vibration measuring system comprising a blade, a transmitter, a target with parallel edges located on the blade shroud and a receiver. The present invention also provides a blade adapted for measuring torsional blade vibration. Furthermore, the claimed invention provides a method for monitoring torsional blade vibration.

Abstract translation: 所要求保护的发明提供了一种叶片振动测量系统，其包括叶片，发射器，具有位于叶片护罩上的平行边缘的靶和接收器。 本发明还提供一种用于测量扭转叶片振动的叶片。 此外，要求保护的发明提供了一种用于监测扭转叶片振动的方法。

公开(公告)号：US20060000283A1

公开(公告)日：2006-01-05

申请号：US10881798

申请日：2004-06-30

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: G01N29/00

CPC classification number: G01H1/003 ,  G01N29/2418 ,  G01N2291/2693

Abstract: The claimed invention provides a blade vibration measuring system comprising a blade, a transmitter, a target with non parallel edges located on the blade shroud and a receiver. The present invention also provides a blade adapted for measuring blade vibration. Furthermore, the claimed invention provides a method for monitoring blade vibration.

Abstract translation: 所要求保护的发明提供了一种叶片振动测量系统，其包括叶片，发射器，具有位于叶片护罩上的非平行边缘的靶和接收器。 本发明还提供了一种用于测量叶片振动的叶片。 此外，要求保护的发明提供了一种用于监测叶片振动的方法。

公开(公告)号：US20050270519A1

公开(公告)日：2005-12-08

申请号：US10849992

申请日：2004-05-20

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: F01D21/00 ,  G01P3/40 ,  G01P3/488

CPC classification number: G01P3/40 ,  F01D21/003 ,  G01P3/488

Abstract: A system (10) for imaging a rotating turbine blade (20) includes an image projector (12) receiving a moving image of the rotating blade and projecting a movement-compensated image. The system also includes an image receptor (14) for receiving the movement-compensated image. A sensor (16) is provided for generating information (28) indicative of a velocity of the rotating turbine blade and a processor (18) generates a drive signal (30) responsive to the information for controlling a position of the image projector. The image projector is controlled to receive the moving image at a desired angular position and to project the movement-compensated image to the image receptor so that the movement-compensated image appears stationary relative to the image receptor.

Abstract translation: 用于对旋转的涡轮叶片（20）进行成像的系统（10）包括接收旋转叶片的运动图像并投影运动补偿图像的图像投影仪（12）。 该系统还包括用于接收运动补偿图像的图像接收器（14）。 提供传感器（16），用于产生指示旋转的涡轮机叶片的速度的信息（28），并且处理器（18）根据用于控制图像投影仪的位置的信息产生驱动信号（30）。 控制图像投影仪以在期望的角度位置接收运动图像，并将移动补偿图像投射到图像接收器，使得运动补偿图像相对于图像接收体呈现静止。

公开(公告)号：US20050199832A1

公开(公告)日：2005-09-15

申请号：US10797451

申请日：2004-03-10

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: G01N21/86 ,  G01V8/00

CPC classification number: F01D5/005 ,  F01D21/003 ,  F05D2260/80

Abstract: A system (10) for imaging a combustion turbine engine airfoil includes a camera (12) and a positioner (24). The positioner may be controlled to dispose the camera within an inner turbine casing of the engine at a first position for acquiring a first image. The camera may then be moved to a second position for acquiring a second image. A storage device (30) stores the first and second images, and a processor (32) accesses the storage device to generate a composite image from the first and second images. For use when the airfoil is rotating, the system may also include a sensor (40) for generating a position signal (41) responsive to a detected angular position of an airfoil. The system may further include a trigger device (42), responsive to the position signal, for triggering the camera to acquire an image when the airfoil is proximate the camera.

Abstract translation: 用于对燃气涡轮发动机翼型进行成像的系统（10）包括照相机（12）和定位器（24）。 定位器可以被控制以将照相机布置在用于获取第一图像的第一位置处的发动机的内涡轮机壳体内。 然后可以将相机移动到用于获取第二图像的第二位置。 存储设备（30）存储第一和第二图像，并且处理器（32）访问存储设备以从第一和第二图像生成合成图像。 为了在翼型件旋转时使用，系统还可以包括用于响应于检测到的翼型的角位置产生位置信号（41）的传感器（40）。 系统还可以包括响应于位置信号的触发装置（42），用于当翼型件靠近相机时触发相机获取图像。

公开(公告)号：US06661222B1

公开(公告)日：2003-12-09

申请号：US10158954

申请日：2002-05-31

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: G01B714

CPC classification number: G01B7/14

Abstract: A monitoring system for measuring the gap between a turbine blade and a stationery component of a turbine, includes an insertion probe having a sensor which is moved radially within the gap to a pre-selected distance from the turbine blade as measured by the sensor's output. The distance the sensor moved from a reference point to arrive at the pre-selected distance from the blade is also monitored and the gap between the fixed turbine component and the blade is determined from these measurements.

Abstract translation: 用于测量涡轮机叶片和涡轮机的文具部件之间的间隙的监测系统包括插入探针，其具有传感器，该传感器在间隙内径向地移动到由传感器的输出测量的与涡轮叶片的预选距离。 传感器从参考点移动到与叶片预先设定的距离处的距离也被监测，并且从这些测量确定固定涡轮机部件和叶片之间的间隙。