公开(公告)号：US20080041162A1

公开(公告)日：2008-02-21

申请号：US11504506

申请日：2006-08-15

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: G01H11/00

CPC classification number: G01H9/006

Abstract: Apparatus and method for monitoring vibration levels in rotatable machinery (52). In one embodiment, a system (50) includes a source (66) for generating coherent radiation (70) and a first partially transmissive, partially reflective device (90) positioned to receive radiation (70) from the source (66) and transmit a part of the radiation there through. A second partially transmissive, partially reflective device (100) is mounted to the machinery (52), positioned to reflect a first signal (72) and transmit radiation (70) transmitted by the first device (90). A third device 104) is mounted to the machinery (52) and positioned to reflect radiation transmitted through the second device to provide a second signal (78). Circuitry (82, 86) is configured to generate an electrical signal based on a combination of the first and second signals (72, 78), and processing circuitry (114) provides a value indicative of vibration amplitude occurring in the machinery (52) based on the combination of the first and second signals. An embodiment of an associated method includes providing a first radiation signal (70) of a first frequency, deriving second and third radiation signals (78A, 78B) each having a time-varying Doppler shifting frequency relative to the first signal, and providing a value indicative of vibration amplitude occurring in the machinery (52) based on a combination of the second and third signals.

Abstract translation: 用于监测可旋转机械中的振动水平的装置和方法（52）。 在一个实施例中，系统（50）包括用于产生相干辐射（70）的源（66）和定位成从源（66）接收辐射（70）的第一部分透射的部分反射装置（90） 部分辐射通过。 第二部分透射的，部分反射的装置（100）安装到机械（52），定位成反射由第一装置（90）传输的第一信号（72）和透射辐射（70）。 第三装置104）安装到机械（52）并被定位成反射透过第二装置的辐射以提供第二信号（78）。 电路（82,86）被配置为基于第一和第二信号（72,78）的组合产生电信号，并且处理电路（114）提供指示在机器（52）中发生的振幅的值 关于第一和第二信号的组合。 相关方法的实施例包括提供第一频率的第一辐射信号（70），导出第二和第三辐射信号（78A，78B），每个辐射信号具有相对于第一信号的时变多普勒频移频率，并提供 基于第二信号和第三信号的组合，指示在机械（52）中发生振动幅度的值。

公开(公告)号：US20060078193A1

公开(公告)日：2006-04-13

申请号：US10961632

申请日：2004-10-08

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

Inventor： Hans-Gerd Brummel ,  William Landi ,  Dennis Lemieux ,  Michael Twerdochlib ,  Stephen 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.

公开(公告)号：US06992315B2

公开(公告)日：2006-01-31

申请号：US10797451

申请日：2004-03-10

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: 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：US20050123230A1

公开(公告)日：2005-06-09

申请号：US10729197

申请日：2003-12-05

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: G02B6/00 ,  G02B6/26

CPC classification number: G01D11/245

Abstract: The present invention provides a configuration where all optical parts of a monitoring system are contained within a seal and within the generator itself. Non-optical preamplifier functions may also be placed within the seal. In this configuration there is an electrical rather than optical feed-through at the generator wall, which is hermetically sealed, unlike a fiber optic feed-through. The fiber optic light source and detector for each sensor is located in the seal on the generator side of the hermetic electrical feed-through. Electrical power and the sensor's converted electrical vibration signals pass through the electrical feed-through to preamplifier circuitry on the outside of the seal where direct electrical connection is then made to a main chassis unit.

Abstract translation: 本发明提供了一种配置，其中监控系统的所有光学部件都包含在密封件内并且在发电机本身内。 非光学前置放大器功能也可以放置在密封件内。 在这种配置中，不像光纤馈通不同，在发生器壁上存在电气而不是光学馈通，其被气密地密封。 每个传感器的光纤光源和检测器位于密封电气馈电发生器侧的密封件中。 电力和传感器转换的电振动信号通过电气馈通到密封件外部的前置放大器电路，然后直接电连接到主机架单元。

公开(公告)号：US20050063452A1

公开(公告)日：2005-03-24

申请号：US10669846

申请日：2003-09-24

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: G01H1/00 ,  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：US5761956A

公开(公告)日：1998-06-09

申请号：US544347

申请日：1995-10-17

Applicant: Robert J. Beeson ,  Michael Twerdochlib ,  Jeffrey Arthur Kain

Inventor： Robert J. Beeson ,  Michael Twerdochlib ,  Jeffrey Arthur Kain

IPC: G01H1/00 ,  G01H9/00 ,  G01M13/00

CPC classification number: G01H9/00 ,  G01H1/006

Abstract: A passive blade vibration monitor sensor for determining an arrival time of a blade of a combustion turbine during operation, the sensor includes an optical lens which receives infrared radiation generated by the blade of the turbine and generates a sensor signal from the received infrared radiation, the sensor signal indicating an arrival time of the blade of the combustion turbine. Target material having an emissivity lower than the emissivity of the blade may be placed on the blade to enhance sensor sensitivity especially in shrouded blade environments.

Abstract translation: 一种被动叶片振动监测传感器，用于在操作期间确定燃烧涡轮机的叶片的到达时间，所述传感器包括光学透镜，其接收由所述涡轮机的叶片产生的红外辐射并且从所接收的红外辐射产生传感器信号， 传感器信号表示燃气轮机的叶片的到达时间。 具有低于叶片发射率的发射率的靶材料可以放置在叶片上，以增强传感器灵敏度，特别是在被覆盖的叶片环境中。

公开(公告)号：US5469745A

公开(公告)日：1995-11-28

申请号：US69495

申请日：1993-06-01

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: G01H9/00 ,  G01H1/14 ,  G01H13/00 ,  G01M99/00 ,  H02K11/00 ,  G01N29/00

CPC classification number: G01H1/14

Abstract: A method for determining a beat frequency in a vibration sensing system attached to an electrical generator comprises the steps of (a) generating a vibration signal indicative of a vibrational frequency and amplitude of the generator; and (b) obtaining a beat frequency from the vibration signal by storing and processing time interval data representing the time intervals between zero crossings of the vibration signal. A generator 10, optical vibration sensor 12, and computer 14 constitute the vibration sensing system 16. The computer is programmed to analyze the time interval data to obtain the beat frequency.

Abstract translation: 一种用于确定附接到发电机的振动感测系统中的节拍频率的方法，包括以下步骤：（a）产生表示发电机的振动频率和振幅的振动信号; 和（b）通过存储和处理表示振动信号的过零点之间的时间间隔的时间间隔数据，从振动信号获得拍频。 发电机10，光学振动传感器12和计算机14构成振动感测系统16.计算机被编程为分析时间间隔数据以获得拍频。

公开(公告)号：US5227950A

公开(公告)日：1993-07-13

申请号：US662643

申请日：1991-03-01

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: H02K7/18 ,  H01R4/64 ,  H01R39/38 ,  H05F3/02

CPC classification number: H01R4/64 ,  H01R39/381

Abstract: A brush assembly for providing contact between a grounding brush and a rotating shaft, in which the noncontact time associated with brush bounce is reduced. A brush is provided which is fixed to a pivotable arm, with a bias force applied to the arm, such that when the brush is bounced from a shaft as a result of vibration or shaft wobbling, the bias force will reestablish contact between the brush and shaft. Rolling contact between a negator spring and the arm is also provided for reducing friction associated with contact between the spring and pivotable arm. Due to the reduced friction provided by the rolling contact, and more significantly by the pivotal mounting of the arm to which the brush is fixed, the response of the assembly in reestablishing contact with the shaft is greatly improved.

公开(公告)号：US5168747A

公开(公告)日：1992-12-08

申请号：US618121

申请日：1990-11-26

Applicant: Karen L. Weaver ,  Michael Twerdochlib

Inventor： Karen L. Weaver ,  Michael Twerdochlib

IPC: G01M3/20

CPC classification number: G01M3/202

Abstract: Both a system and method are provided for detecting and locating a leak in the housing of the steam turbine components of an electric generator of the type that are connected to a vacuum pump that generates a negative pressure to remove air from the steam system, comprising a source of tracer gas for releasing a quantity of gas at potential leak locations on the exterior of the housings, a saturatable tracer gas detector having an inlet port in fluid communication with an outlet of the vacuum pump for detecting a flow of tracer gas associated with a selected minimum leak condition and for generating an electrical signal corresponding to this condition, an electrically controllable butterfly valve located upstream of the inlet port of the tracer gas detector for regulating the amount of tracer gas that flows into the detector, and a control assembly including a microprocessor that is electrically connected to both the tracer gas detector and to the valve for preventing a saturating flow of tracer gas from entering the inlet port of the detector. The system greatly expedites air inleakage inspections of such turbine systems since the tracer gas detector is prevented from becoming saturated with tracer gas, which in the prior art frequently caused the detector to become inoperative for significant periods of time.

Abstract translation: 提供了一种系统和方法，用于检测和定位在与产生负压以从蒸汽系统中除去空气的真空泵连接的类型的发电机的蒸汽轮机部件的壳体中的泄漏，所述真空泵包括 示踪气体源，用于在壳体外部的潜在泄漏位置处释放一定量的气体，可饱和示踪气体检测器，其具有与真空泵的出口流体连通的入口端口，用于检测与一个或多个气体相关联的示踪气体的流动 选择的最小泄漏条件和用于产生对应于该条件的电信号;位于示踪气体检测器的入口端的上游的电可控蝶阀，用于调节流入检测器的示踪气体的量;以及控制组件， 与示踪气体检测器和阀电连接以防止饱和流动的微处理器 的示踪气体进入检测器的入口。 由于示踪气体检测器被示踪气体饱和，该系统大大加速了对这种涡轮机系统的空气泄漏检查，这在现有技术中频繁地使检测器不能工作在相当长的一段时间内。

公开(公告)号：US5056986A

公开(公告)日：1991-10-15

申请号：US440070

申请日：1989-11-22

Applicant: George J. Silvestri, Jr. ,  Alvin L. Stock ,  Michael Twerdochlib

Inventor： George J. Silvestri, Jr. ,  Alvin L. Stock ,  Michael Twerdochlib

IPC: F01D11/08 ,  F01D9/02 ,  F01D11/22 ,  F01D11/24 ,  F01D21/08 ,  F01D25/00

CPC classification number: F01D5/225 ,  F01D11/22 ,  F01D11/24

Abstract: A positioning system for a steam turbine element includes a plurality of flex plates which support an inner cylinder of a steam turbine element with the rotating blades of a rotor and the stationary blades of the inner cylinder at a predetermined position. Sensors detect shifting of the rotor within the inner cylinder and provide control signals to a motor which drives the inner cylinder in an axial direction to account for shifting of the rotor.

Abstract translation: 用于汽轮机元件的定位系统包括多个柔性板，其将蒸汽涡轮机元件的内圆筒与转子的旋转叶片和内筒的固定叶片支撑在预定位置。 传感器检测转子在内筒内的移位，并且向轴向驱动内筒的马达提供控制信号以解决转子的移动。