公开(公告)号：US20100076703A1

公开(公告)日：2010-03-25

申请号：US12360897

申请日：2009-01-28

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: G01N21/00

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 receptor ends of a plurality of optical fibers defining a detection conduit for conveying the reflected light to a processor. The transmission ends and receptor ends of the optical fibers are configured as a narrow rectangle to define a probe end for receiving reflected light at different axial locations along the probe end, and to detect blade passing events defined by passage of either or both a blade leading edge and a blade trailing edge.

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。 刀尖目标部分穿过投影图像并将光反射到限定用于将反射光传送到处理器的检测导管的多个光纤的受体端。 传输端和光纤的接收端被配置成一个窄矩形，以限定一个探头端，用于接收沿探头端的不同轴向位置处的反射光，并检测由通过叶片引导 边缘和叶片后缘。

公开(公告)号：US20100073008A1

公开(公告)日：2010-03-25

申请号：US12360923

申请日：2009-01-28

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: G01R31/08

CPC classification number: G01R31/1272

Abstract: A partial discharge coupler for detecting partial discharges in a conductor includes a frequency dependent network, a differential amplifier and a frequency selective coupling component. The frequency dependent network includes a first filter component, a fuse component and a load component, typically coupled together in series with reference to a first ground. The first filter component filters the high voltage, low frequency alternating current signal carried by the conductor from the load component and passes high frequency partial discharge pulse signals to the load component. The frequency selective coupling component couples in series between the differential amplifier and the load component. The output of the differential amplifier is configured to provide an output that is isolated from the ground connection for communicating detected partial discharge signals to partial discharge test equipment.

Abstract translation: 用于检测导体中部分放电的局部放电耦合器包括频率相关网络，差分放大器和频率选择耦合部件。 频率依赖网络包括第一滤波器部件，熔丝部件和负载部件，通常以参考第一接地串联连接在一起。 第一滤波器组件对来自负载组件的导体承载的高电压，低频交流信号进行滤波，并将高频部分放电脉冲信号传递到负载组件。 频率选择耦合元件串联耦合在差分放大器和负载元件之间。 差分放大器的输出被配置为提供与接地连接隔离的输出，用于将检测到的局部放电信号传送到局部放电测试设备。

公开(公告)号：US20090302862A1

公开(公告)日：2009-12-10

申请号：US12132708

申请日：2008-06-04

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: H01H31/12 ,  G01R31/12

CPC classification number: G01R31/1272 ,  G01R31/343

Abstract: Electrical generators used for power generation typically operate at high voltage. The High operating voltage results in a severe electrical stress environment for the generator conductor insulation system. The high electrical stress cal lead to a phenomena such as corona, partial discharge and arcing that can cause damage to the insulation and conductors. Disclosed is a novel method and system of detecting partial discharge activity within an electric generator. The method employs at least two Rogowski loops non-contactingly surrounding individual iso-phase bus conductors, where the loops are wired in differential mode to detect fast moving electrical pulses indicative of partial discharge.

Abstract translation: 用于发电的发电机通常以高电压工作。 高工作电压导致发电机导体绝缘系统的严重的电应力环境。 高电压导致电晕，局部放电和电弧等现象，导致绝缘和导体损坏。 公开了一种检测发电机内局部放电活动的新方法和系统。 该方法使用非接触地围绕各个等相总线导体的至少两个罗氏线圈，其中环路以差分模式布线以检测指示局部放电的快速移动电脉冲。

公开(公告)号：US20070295894A1

公开(公告)日：2007-12-27

申请号：US11472934

申请日：2006-06-22

Applicant: Evangelos V. Diatzikis ,  Michael Twerdochlib ,  Mehrzad Tartibi

Inventor： Evangelos V. Diatzikis ,  Michael Twerdochlib ,  Mehrzad Tartibi

IPC: G01J1/04

CPC classification number: G01M13/04 ,  G01H9/004

Abstract: A wear determination device for determining-vibration in a turbine engine component to reduce wear in a turbine engine. The wear determination device may be capable of measuring vibrations in a turbine engine component. The vibration measurement may be used to determine vibrations in a turbine engine to identify wear locations and sources of wear. The wear determination device may be configured such that multiple locations in a turbine engine may be monitored on a single turbine engine by moving the wear determination device from location to location.

Abstract translation: 一种用于确定涡轮发动机部件中的振动以减少涡轮发动机中的磨损的磨损确定装置。 磨损确定装置可以能够测量涡轮发动机部件中的振动。 振动测量可用于确定涡轮发动机中的振动以识别磨损位置和磨损来源。 磨损确定装置可以被配置为使得可以在单个涡轮发动机上通过将磨损确定装置从位置移动到位置来监测涡轮发动机中的多个位置。

公开(公告)号：US07259552B2

公开(公告)日：2007-08-21

申请号：US11140655

申请日：2005-05-27

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: G01B7/14

CPC classification number: F01D21/003 ,  F05D2270/305 ,  G01B7/14

Abstract: A measurement device for measuring the wear of turbo-machine components to reduce the likelihood of component failure while a turbine-machine is at load. The measurement device is capable of measuring and calculating a distance between surfaces while the turbo-machine is at load. The distance may be compared with a measurement taken of the same location at another time to determine wear of a surface remote from the location of the measurement. The measurement device may be configured such that multiple measurements may be made on a single turbine engine by moving the measurement device from location to location.

Abstract translation: 一种用于测量涡轮机组件磨损的测量装置，以减少在涡轮机处于负载状态时部件故障的可能性。 测量装置能够在涡轮机处于负载状态时测量和计算表面之间的距离。 该距离可以与在另一时间对同一位置进行的测量进行比较，以确定远离测量位置的表面的磨损。 测量装置可以被配置为使得可以通过将测量装置从位置移动到位置而在单个涡轮发动机上进行多次测量。

公开(公告)号：US07064811B2

公开(公告)日：2006-06-20

申请号：US10849992

申请日：2004-05-20

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: G01P3/40

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：US06998618B2

公开(公告)日：2006-02-14

申请号：US10669846

申请日：2003-09-24

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: G01K1/00

CPC classification number: G01H1/003

Abstract: The present invention provides a flange-mounted condition monitor (30) that can be mounted to an access flange (21) on an access opening (20) on the housing (13) of a generator (10). The condition monitor (30) forms an integral part of the generator (10) and eliminates the need for complex systems of pipes and valves for transferring hydrogen samples from the generator (10) to the condition monitor (30). The flange-mounted condition monitor (30) provides greater sensitivity to overheat conditions, significantly reducing the risk of dangerous hydrogen leaks and eliminating costs associated with installing and maintaining a remote condition monitor and also reducing or eliminating the false alarms associated with water that collects in the piping of a remote condition monitor.

Abstract translation: 本发明提供了一种法兰安装状态监视器（30），其可以安装在发电机（10）的壳体（13）上的进入开口（20）上的进入凸缘（21）上。 状态监视器（30）形成发电机（10）的组成部分，并且不需要用于将氢气样本从发电机（10）传送到状态监视器（30）的复杂系统的管道和阀门。 法兰安装状态监视器（30）对过热条件提供更高的灵敏度，显着降低危险氢气泄漏的风险，并消除与安装和维护远程监控器相关的成本，并且还可以减少或消除与收集的水相关的虚假警报 远程状态监视器的管道。

公开(公告)号：US5416430A

公开(公告)日：1995-05-16

申请号：US54572

申请日：1993-04-28

Applicant: Michael Twerdochlib ,  Robert L. Osborne

Inventor： Michael Twerdochlib ,  Robert L. Osborne

IPC: G01R31/12 ,  G01R31/34

CPC classification number: G01R31/343 ,  G01R31/12

Abstract: The present invention monitors RF emissions within a turbine generator. A coupling device provides a connection between preexisting thermal sensor leads and an RF monitor. Preexisting thermal sensor leads are connected to thermocouples and resistance temperature detectors during manufacture of the turbine generator. The RF monitor is used in the present invention to monitor RF emissions flowing in the thermal sensor leads thereby avoiding a need to retrofit RF sensors on the generator. The present invention also provides a capacitive coupling means between the thermal sensor leads and the RF monitor. The present invention also provides an inductive means to reduce interference from RF emissions having sources external to the generator.

Abstract translation: 本发明监测涡轮发电机内的RF发射。 耦合装置提供先前存在的热传感器引线和RF监视器之间的连接。 在涡轮发电机制造过程中，预先存在的热传感器引线连接到热电偶和电阻温度检测器。 在本发明中使用RF监视器来监测在热传感器引线中流动的RF辐射，从而避免需要改变发生器上的RF传感器。 本发明还提供了在热传感器引线和RF监视器之间的电容耦合装置。 本发明还提供一种用于减少具有发生器外部的源的RF发射的干扰的电感装置。

公开(公告)号：US5148711A

公开(公告)日：1992-09-22

申请号：US607934

申请日：1990-11-01

Applicant: Michael Twerdochlib ,  Paul F. Rozelle ,  Santitavee Sarasas

Inventor： Michael Twerdochlib ,  Paul F. Rozelle ,  Santitavee Sarasas

IPC: F01D17/24 ,  F01D25/00 ,  G01H1/00

CPC classification number: G01H1/006

Abstract: A sensor produces a signal indicative of the actual arrival time of each turbine blade at the sensor. A first circuit is responsive to the sensor for producing digital data representing the actual arrival time of each blade at the sensor. A second circuit establishes expected arrival times for each blade at the sensor. A third circuit is responsive to the digital data for generating a plurality of data entries each representing the difference between the actual arrival time and the expected arrival time. A fourth circuit stores the data entries in a first string having a plurality of dummy entries at the beginning thereof and at the end thereof and inserts into the string space saver characters in the event that the data entry for a particular blade is not produced. A fifth circuit establishes a running average value, over a plurality of data entries, for each data entry. The running average value is representative of common mode vibration. The average value is subtracted from its corresponding data entry to produce a second string wherein the entries in the second string are free of common mode vibration data.

Abstract translation: 传感器产生指示每个涡轮叶片在传感器处的实际到达时间的信号。 第一电路响应于传感器用于产生表示每个叶片在传感器处的实际到达时间的数字数据。 第二个电路在传感器处建立每个叶片的预期到达时间。 第三电路响应于数字数据以产生多个数据条目，每个数据条目表示实际到达时间与预期到达时间之间的差异。 第四电路将数据条目存储在具有多个虚拟条目的第一字符串的起始端和末端，并且在不产生特定刀片的数据条目的情况下插入到字符串空间保护字符中。 第五电路为每个数据条目在多个数据条目中建立运行平均值。 运行平均值代表共模振动。 从其对应的数据条目中减去平均值以产生第二串，其中第二串中的条目没有共模振动数据。

公开(公告)号：US5146776A

公开(公告)日：1992-09-15

申请号：US618135

申请日：1990-11-26

Applicant: Michael Twerdochlib ,  Richard B. Chianese

Inventor： Michael Twerdochlib ,  Richard B. Chianese

IPC: G01H9/00 ,  G01D5/34 ,  G01D18/00 ,  G01H3/00 ,  G01H13/00 ,  G01H17/00

CPC classification number: G01D18/004 ,  G01D5/34 ,  G01H3/005

Abstract: An optical vibration sensor is automatically calibrated by extracting a beat frequency vibration signal from a vibration signal produced by the optical vibration sensor, computing a resonant frequency of the optical vibration sensor using the beat frequency which has been extracted, and calibrating the optical vibration sensor based on the resonant frequency computed. The calibration method continuously compensates for changes in the resonant frequency due to temperature and mechanical changes of the optical vibration sensor. The optical vibration sensor is physically attached to an end-winding of an electrical generator.

Abstract translation: 通过从由光学振动传感器产生的振动信号提取拍频振动信号，使用已经提取的拍频来计算光学振动传感器的谐振频率，并且基于光学振动传感器校准光学振动传感器 对谐振频率进行计算。 校准方法连续地补偿由于光学振动传感器的温度和机械变化引起的谐振频率的变化。 光学振动传感器物理地连接到发电机的端部绕组上。