公开(公告)号：US07866213B2

公开(公告)日：2011-01-11

申请号：US12141263

申请日：2008-06-18

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: G01H1/00 ,  G01B7/14

CPC classification number: G01H1/006

Abstract: A method for identifying an unfolded non-synchronous blade vibration frequency in blades on a rotating rotor using a plurality of probes spaced from each other about the rotor. A set of data is acquired from the probes during a predetermined number of rotor revolutions and is processed using a Fourier analysis to generate an output representative of frequencies and phase shift angles corresponding to blade vibrations. The phase shift angles are used to identify a subharmonic for a blade vibration frequency to provide an output identifying the vibration frequency. A space dispersion and time dispersion of probes is described to increase the accuracy of the subharmonic determination using the phase shift angles.

Abstract translation: 使用绕转子间隔开的多个探针来确定旋转转子上的叶片中的展开非同步叶片振动频率的方法。 在预定数量的转子转数期间从探头获取一组数据，并且使用傅立叶分析来处理数据，以产生表示对应于叶片振动的频率和相移角的输出。 相移角用于识别叶片振动频率的次谐波，以提供识别振动频率的输出。 描述探针的空间色散和时间色散，以增加使用相移角的次谐波确定的精度。

公开(公告)号：US20100074727A1

公开(公告)日：2010-03-25

申请号：US12360909

申请日：2009-01-28

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: F02C7/00

CPC classification number: G01H1/006

Abstract: A method and apparatus for monitoring blade vibrations in a turbine engine having blade tip target portions associated with blades. An illumination conduit including a plurality of optical fibers conveys light from a light source to a transmission end of the optical fibers where the light is focused to define an axially elongated projected image. The blade tip target portions pass through the projected image and reflect light to a receptor array defined by receptor ends of a plurality of optical fibers forming an imaging conduit for conveying the reflected light to a sensor array. An imaging end of the imaging conduit radiates an image onto the sensor array that is identical to the reflected light image received at the receptor array to track tangential and axial movement of a predetermined point on the target portion.

Abstract translation: 一种用于监测涡轮发动机中的叶片振动的方法和装置，其具有与叶片相关联的叶片尖端目标部分。 包括多个光纤的照明导管将来自光源的光传输到光纤的透射端，在该光纤的发射端处聚焦以限定轴向细长的投影图像。 叶片尖端目标部分穿过投影图像并将光反射到由形成用于将反射光传送到传感器阵列的成像导管的多个光纤的受体端限定的受体阵列。 成像管道的成像端将传感器阵列上的图像辐射到与在受体阵列处接收的反射光图像相同的图像，以跟踪目标部分上的预定点的切向和轴向移动。

公开(公告)号：US20100066315A1

公开(公告)日：2010-03-18

申请号：US12209333

申请日：2008-09-12

Applicant: Evangelos Diatzikis ,  Hans-Gerd Brummel ,  Michael Twerdochlib ,  Lutz Intichar ,  Matthias Humer ,  Detlef Frerichs

Inventor： Evangelos Diatzikis ,  Hans-Gerd Brummel ,  Michael Twerdochlib ,  Lutz Intichar ,  Matthias Humer ,  Detlef Frerichs

IPC: H02K11/00

CPC classification number: H02K11/25 ,  H02K11/20

Abstract: A method and system for monitoring the operating conditions of an electric generator. The system includes a triad sensor array formed within a predetermined section of a fiber optic conductor. The triad sensor array is formed of a group of sensors including a first sensor including a Bragg grating for producing a first signal representative of strain in a stator bar of the generator, a second sensor including a Bragg grating for producing a second signal representative of temperature in the stator bar, and a third sensor including a Bragg grating for producing a third signal representative of vibration amplitude in the stator bar.

Abstract translation: 一种用于监测发电机运行状况的方法和系统。 该系统包括形成在光纤导体的预定部分内的三元组传感器阵列。 三元组传感器阵列由一组传感器组成，包括第一传感器，其包括布拉格光栅，用于产生表示发生器的定子条中的应变的第一信号;第二传感器，包括用于产生代表温度的第二信号的布拉格光栅 以及包括布拉格光栅的第三传感器，用于产生代表定子条中振动振幅的第三信号。

公开(公告)号：US20100013494A1

公开(公告)日：2010-01-21

申请号：US12174292

申请日：2008-07-16

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: G01R31/08

CPC classification number: G01R31/346 ,  G01R31/1272 ,  G01R31/343

Abstract: A marker pulse discriminator monitor that enables filtering of partial discharge pulses for monitoring the condition of a generator in a power plant system. The monitor detects partial discharge pulses emanating from the generator and includes a plurality of first modules connected to respective isophase buses adjacent to the generator. Each of the first modules generate a marker pulse in response to a partial discharge pulse. The monitor also includes an analyzer unit connected to the isophase buses adjacent to a step-up transformer. The analyzer unit receives each partial discharge pulse and each marker pulse and determines a differential value corresponding to a difference between a time of arrival of a partial discharge pulse and a time of arrival of a corresponding marker pulse to identify partial discharge pulses originating at the generator and to identify the isophase bus associated with the corresponding partial discharge pulse.

Abstract translation: 标记脉冲鉴别器监视器，其能够对部分放电脉冲进行滤波，以监视发电厂系统中发电机的状态。 监视器检测从发生器发出的局部放电脉冲，并且包括连接到与发生器相邻的相应同位体总线的多个第一模块。 每个第一模块响应于局部放电脉冲产生标记脉冲。 该监视器还包括一个与升压变压器相邻的同相母线连接的分析器单元。 分析器单元接收每个局部放电脉冲和每个标记脉冲，并且确定对应于部分放电脉冲的到达时间与相应标记脉冲的到达时间之间的差的差分值，以识别源自发生器的部分放电脉冲 并识别与相应的局部放电脉冲相关的同相母线。

公开(公告)号：US20090314092A1

公开(公告)日：2009-12-24

申请号：US12141263

申请日：2008-06-18

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: G01H1/00 ,  G01B7/14

CPC classification number: G01H1/006

Abstract: A method for identifying an unfolded non-synchronous blade vibration frequency in blades on a rotating rotor using a plurality of probes spaced from each other about the rotor. A set of data is acquired from the probes during a predetermined number of rotor revolutions and is processed using a Fourier analysis to generate an output representative of frequencies and phase shift angles corresponding to blade vibrations. The phase shift angles are used to identify a subharmonic for a blade vibration frequency to provide an output identifying the vibration frequency. A space dispersion and time dispersion of probes is described to increase the accuracy of the subharmonic determination using the phase shift angles.

Abstract translation: 使用绕转子间隔开的多个探针来确定旋转转子上的叶片中的展开非同步叶片振动频率的方法。 在预定数量的转子转数期间从探头获取一组数据，并且使用傅立叶分析来处理数据，以产生表示对应于叶片振动的频率和相移角的输出。 相移角用于识别叶片振动频率的次谐波，以提供识别振动频率的输出。 描述探针的空间色散和时间色散，以增加使用相移角的次谐波确定的精度。

公开(公告)号：US07489811B2

公开(公告)日：2009-02-10

申请号：US10961632

申请日：2004-10-08

Applicant: Hans-Gerd Johann Brummel ,  William Alexander Landi ,  Dennis Lemieux ,  Michael Twerdochlib ,  Stephen Price Masticola

Inventor： Hans-Gerd Johann Brummel ,  William Alexander Landi ,  Dennis Lemieux ,  Michael Twerdochlib ,  Stephen Price Masticola

IPC: G06K9/00

CPC classification number: G06T7/0004 ,  F05B2230/80 ,  F05B2260/80 ,  G01N21/8806 ,  G01N21/9515 ,  G01N21/954

Abstract: An optical inspection system is for visually inspecting the blades of a turbine at turning gear operation. The inspection system includes an imager for capturing images of the blades, an optical passage coupled to the imager and structured to provide maximum viewing area of the blades through an inspection port in the turbine and an illuminating assembly adapted to illuminate the blades while the imager captures images thereof. A method wherein the captured blade images are inspected for blade defects, is also disclosed.

Abstract translation: 光学检查系统用于在转向齿轮操作时目视检查涡轮机的叶片。 检查系统包括用于捕获刀片的图像的成像器，耦合到成像器的光学通道，其被构造成通过涡轮机中的检查端口提供刀片的最大观察面积，以及适于在成像器捕获时照射刀片的照明组件 其图像。 还公开了对被捕获的叶片图像进行叶片缺陷检查的方法。

公开(公告)号：US20080298428A1

公开(公告)日：2008-12-04

申请号：US11809299

申请日：2007-05-31

Applicant: Michael Twerdochlib ,  Evangelos V. Diatzikis ,  Edward D. Thompson ,  David Bateman

Inventor： Michael Twerdochlib ,  Evangelos V. Diatzikis ,  Edward D. Thompson ,  David Bateman

IPC: G01J5/00

CPC classification number: G01J5/08 ,  G01J5/047 ,  G01J5/06 ,  G01J5/0831 ,  G01J5/084 ,  G01J5/089 ,  G01J5/0893 ,  G01R31/086

Abstract: A temperature monitor for monitoring plural locations on an electrical bus structure. The temperature monitor includes an infrared sensor for receiving infrared energy from a plurality of discrete predetermined locations on the bus structure, a first member defining a stationary first mask, a second member defining a rotating second mask, and a drive member driving the second member in rotation relative to the first member. Rotation of the second member relative to the first member defines an aperture translated across the first mask member to provide a moving line-of-sight that extends from the sensor and that scans to each of the discrete predetermined locations on the bus structure.

Abstract translation: 一种用于监测电气总线结构上的多个位置的温度监视器。 温度监视器包括用于从总线结构上的多个离散预定位置接收红外能量的红外传感器，限定固定第一掩模的第一构件，限定旋转第二掩模的第二构件和驱动第二构件的驱动构件 相对于第一构件的旋转。 第二构件相对于第一构件的旋转限定了穿过第一掩模构件平移的孔，以提供从传感器延伸并且扫描到总线结构上的每个离散的预定位置的移动视线。

公开(公告)号：US20080206057A1

公开(公告)日：2008-08-28

申请号：US11711843

申请日：2007-02-27

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: F01D5/10

CPC classification number: G01H1/006 ,  F01D5/225

Abstract: A method for predicting a blade structure failure within a coupled blade structure including a plurality of blades supported for rotation on a rotor and a shroud structure coupling the blades. The method includes the steps of determining displacements of a plurality of predetermined circumferential locations on the shroud structure during rotation of the blade row, where the displacements are provided as a function of time relative to the periodic rotation of the shroud structure for time intervals that are integer multiples of rotor rotation. A signal characteristic related to vibrational mode and a nodal diameter of the shroud structure is derived based on the displacements of the circumferential locations on the shroud structure.

Abstract translation: 一种用于预测耦合的叶片结构内的叶片结构故障的方法，包括支撑在转子上的多个叶片和联接叶片的护罩结构。 该方法包括以下步骤：在叶片排的旋转期间确定护罩结构上的多个预定圆周位置的位移，其中相对于护罩结构的周期性旋转的时间作为时间的函数提供位移，时间间隔为 转子旋转的整数倍。 基于护罩结构上的周向位置的位移导出与振动模式和护罩结构的节点直径相关的信号特性。

公开(公告)号：US20080191891A1

公开(公告)日：2008-08-14

申请号：US12053794

申请日：2008-03-24

Applicant: Michael Twerdochlib ,  David Bateman

Inventor： Michael Twerdochlib ,  David Bateman

IPC: G08B21/00

CPC classification number: F01D21/003 ,  F01D17/02 ,  F05D2270/11 ,  F05D2270/303

Abstract: A generator monitoring system and method includes a plurality of sensors (12) disposed within a generator enclosure (18) to sense health conditions of a generator (10) housed within the enclosure. The sensors are interconnected to provide a single communication path (14) for allowing communication with the plurality of sensors. A monitoring device (16) outside the generator enclosure receives health condition information from each of the plurality of sensors via the single communication path. A sensor may be disposed within the generator enclosure to detect particulates emitted from a monitored portion (e.g., 52) of the generator housed within the enclosure. A sensor may be disposed proximate a bus bar connection (130) of the generator to sense a health condition of the bus bar connection and generate corresponding health condition information provided to the monitoring device.

Abstract translation: 发电机监控系统和方法包括设置在发电机外壳（18）内的多个传感器（12），用于感测容纳在外壳内的发电机（10）的健康状况。 传感器互连以提供用于允许与多个传感器通信的单个通信路径（14）。 发电机壳体外部的监测装置（16）经由单个通信路径从多个传感器中的每一个接收健康状况信息。 传感器可以设置在发电机外壳内以检测从容纳在外壳内的发电机的被监测部分（例如52）发射的微粒。 传感器可以设置在发生器的母线连接（130）附近，以感测母线连接的健康状况，并产生提供给监控装置的相应健康状况信息。

公开(公告)号：US07341428B2

公开(公告)日：2008-03-11

申请号：US11049240

申请日：2005-02-02

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: F01D25/00

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。