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公开(公告)号：US4900919A
公开(公告)日：1990-02-13
申请号：US209124
申请日：1988-06-20
Applicant: Michael Twerdochlib
Inventor： Michael Twerdochlib
IPC: G01H9/00 , G01P15/093
CPC classification number: G01P15/093
Abstract: A vibration sensor 24 is disclosed which uses a piezoelectric crystal 26 to electrically modulate the phase of a laser beam using a phase modulator 28 producing a linearly phase modulated light beam. A DC bias can be provided by a battery 60 while a photocell 64 can provide the DC bias along with a calibration signal. The sensitivity of the sensor 24 can be doubled by passing the light beam through the sensor 24 twice using a reflector 74. By routing optical fibers 20, 22 and 31 carrying a reference beam and a sensing beam along the same physical path mechanical stress effect noise can be removed.
Abstract translation: 公开了使用压电晶体26使用产生线性相位调制光束的相位调制器28对激光束的相位进行电调制的振动传感器24。 DC电池可以由电池60提供，而光电池64可以提供DC偏置以及校准信号。 传感器24的灵敏度可以通过使用反射器74使光束通过传感器24两倍而被加倍。通过沿着相同的物理路径机械应力效应噪声路由携带参考光束和感测光束的光纤20,22和31 可以删除
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公开(公告)号：US4817417A
公开(公告)日：1989-04-04
申请号：US46334
申请日：1987-05-06
Applicant: Michael Twerdochlib
Inventor： Michael Twerdochlib
CPC classification number: G01H1/006 , F01D21/003 , F16B19/02
Abstract: Apparatus and method for aligning and securing a blade vibration sensor about a selectable position along an inner surface of a turbomachine. The apparatus comprises a first rotatable member adapted to eccentrically secure the sensor, a second rotatable member eccentrically coupled to the first member and a ring clamp for mounting the rotatable members on the inner surface. The method includes the steps of securing the sensor to the first member, mounting the rotatable members on the inner surface, rotating the first and second members until the sensor is in a selected position and securing the first and second members against rotation.
Abstract translation: 用于沿着涡轮机的内表面围绕可选位置对准和固定叶片振动传感器的装置和方法。 该装置包括适于偏心地固定传感器的第一可旋转构件，偏心联接到第一构件的第二可旋转构件和用于将可旋转构件安装在内表面上的环形夹具。 该方法包括以下步骤：将传感器固定到第一构件上，将可旋转构件安装在内表面上，使第一和第二构件旋转，直到传感器处于选定位置并固定第一和第二构件以避免旋转。
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23.发明授权
公开(公告)号：US4787408A
公开(公告)日：1988-11-29
申请号：US49493
申请日：1987-05-14
Applicant: Michael Twerdochlib
Inventor： Michael Twerdochlib
IPC: F16K7/10 , F16K31/126
CPC classification number: F16K7/10 , Y10T137/0396 , Y10T137/7888
Abstract: A normally closed valve system for sealing off low pressure gas flow through a pipe. The valve comprises an inflatable bladder which blocks relatively low pressure flow through the pipe and permits relatively high pressure flow through the pipe. In one form, the invention comprises a fail-safe bypass monitor and method for measuring air inleakage in a steam turbine. The monitor selectably bypasses low volumetric flow rates from a pipe for measurement and admits flow through the pipe whenever the flow rate exceeds a predetermined value.
Abstract translation: 一种常闭阀系统，用于密封低压气体流过管道。 该阀包括一个可膨胀的气囊，其阻挡通过管道的相对较低的压力流，并允许相对较高的压力流过管道。 在一种形式中，本发明包括故障安全旁路监视器和用于测量蒸汽涡轮机中的空气泄漏的方法。 监测器可选地绕过用于测量的管道的低体积流量，并且每当流量超过预定值时允许流过管道。
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24.发明授权Apparatus for monitoring hydrogen gas leakage into the stator coil water cooling system of a hydrogen cooled electric generator 失效用于监测氢气泄漏到氢冷发电机的定子线圈水冷却系统中的装置
公开(公告)号：US4766557A
公开(公告)日：1988-08-23
申请号：US876562
申请日：1986-06-20
Applicant: Michael Twerdochlib
Inventor： Michael Twerdochlib
CPC classification number: H02K9/24
Abstract: Apparatus which provides an indication of gas leakage from the interior of an electric generator into a closed circuit water-cooling system for the generator's stator coils. The closed circuit water-cooling system includes a water tank for degasification with the closed volume above the water level being occupied by a gas of the same type as the generator interior. Sensors are provided for obtaining indications of pressure, temperature and volume of the gas, and from these indications the number of moles of gas in the tank are calculated in periodic time increments. The gas is maintained within certain pressure limits by the addition or venting of gas, and if an addition or venting has taken place from one calculation to a next, a projected value for the number of moles is calculated after the change, had the change not occurred. The difference between the actual and projected value is then added onto subsequent calculated values to obtain a history of gas leakage.
Abstract translation: 提供从发电机内部到用于发电机定子线圈的闭路水冷却系统的气体泄漏指示的装置。 闭路水冷系统包括用于脱气的水箱，水位以上的封闭容积由与发电机内部相同类型的气体占据。 提供传感器以获得气体的压力，温度和体积的指示，并且根据这些指示，以周期时间增量计算罐中气体的摩尔数。 通过添加或排放气体，气体保持在一定的压力范围内，如果从一个计算到下一个计算发生添加或排放，则在更改之后计算痣数的预计值，如果没有更改 发生。 然后将实际值和预计值之间的差值加到随后的计算值上，以获得气体泄漏历史。
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25.发明授权Apparatus to measure blade vibration in a turbine engine based on series of images exposed by an imager in response to a sequence of illumination bursts 有权一种用于测量涡轮发动机中的叶片振动的装置，其基于由成像器暴露的一系列图像以响应于一系列照明突发公开(公告)号：US09014460B2
公开(公告)日：2015-04-21
申请号：US13290297
申请日：2011-11-07
Applicant: Michael Twerdochlib
Inventor： Michael Twerdochlib
CPC classification number: F01D21/14 , F01D5/26 , G01H1/003 , G01H1/006 , G01H9/004 , G01M13/028 , G06T7/0002 , G06T7/20
Abstract: Apparatus (12) to measure blade vibration in a gas turbine engine (8). An illumination source (20) generates a sequence of illumination bursts in a field of view capturing a passing rotating blade (10) of the gas turbine engine. An imager (22) generates image data including a series of images capturing views of the passing rotating blade. The images are exposed in response to respective illumination bursts. A controller (30) is configured to process the series of images to identify one or more vibration modes of the rotating blade.
Abstract translation: 用于测量燃气涡轮发动机（8）中的叶片振动的装置（12）。 照明源（20）在捕获燃气涡轮发动机的经过的旋转叶片（10）的视野中产生一系列照明脉冲串。 成像器（22）生成图像数据，其包括捕获经过的旋转叶片的视图的一系列图像。 响应于相应的照明脉冲，曝光图像。 控制器（30）被配置为处理该系列图像以识别旋转叶片的一个或多个振动模式。
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Patent Agency Ranking
公开(公告)号：US20120279313A1
公开(公告)日：2012-11-08
申请号：US13101350
申请日：2011-05-05
Applicant: Evangelos V. Diatzikis , Edward D. Thompson , Michael Twerdochlib
Inventor： Evangelos V. Diatzikis , Edward D. Thompson , Michael Twerdochlib
IPC: G01F1/00
Abstract: A method is provided for monitoring velocity of a fluid flow through a predetermined fluid flow space. A fiber optic conductor includes a flow measurement portion defining an elongated dimension extending across a portion of the fluid flow space. The fluid flow in the fluid flow space causes the measurement portion of the fiber optic conductor to flex in a direction transverse to the elongated dimension. Optical radiation is supplied to the fiber optic conductor, and optical radiation is received from the fiber optic conductor after the supplied optical radiation has passed through the measurement portion. The received optical radiation is analyzed to effect a determination of a flow velocity of the fluid flow.
Abstract translation: 提供了一种用于监测流过预定流体流动空间的流体流速的方法。 光纤导体包括限定延伸穿过流体流动空间的一部分的细长尺寸的流量测量部分。 流体流动空间中的流体流动导致光纤导体的测量部分沿横向于细长尺寸的方向弯曲。 向光纤导体提供光辐射，并且在所提供的光辐射已经通过测量部分之后从光纤导体接收光辐射。 分析所接收的光辐射以确定流体流动的流速。
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公开(公告)号：US20120209545A1
公开(公告)日：2012-08-16
申请号：US13024496
申请日：2011-02-10
Applicant: Benjamin T. Humphries , Evangelos V. Diatzikis , Michael Twerdochlib , James F. Lau , Edward D. Thompson
Inventor： Benjamin T. Humphries , Evangelos V. Diatzikis , Michael Twerdochlib , James F. Lau , Edward D. Thompson
CPC classification number: G01H13/00
Abstract: A system and method for monitoring the condition of a vibration sensor in a system. Vibrations are received in the system at one or more vibration sensors. Sensor data is output by the vibration sensor(s). The sensor data includes data representative of the vibrations in the system and data representative of a natural frequency of the corresponding vibration sensor. The sensor data output from the vibration sensor(s) is monitored, and upon a change in the data representative of the natural frequency of a vibration sensor, that vibration sensor is flagged.
Abstract translation: 一种用于监测系统中的振动传感器的状态的系统和方法。 在一个或多个振动传感器的系统中接收振动。 传感器数据由振动传感器输出。 传感器数据包括表示系统中的振动的数据和表示相应的振动传感器的固有频率的数据。 监测从振动传感器输出的传感器数据，并且在代表振动传感器的固有频率的数据改变时，该振动传感器被标记。
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28.发明授权公开(公告)号：US08076909B2
公开(公告)日：2011-12-13
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
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。
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29.发明申请Method and Apparatus for Monitoring Blade Vibration With A Fiber Optic Ribbon Probe 有权用光纤带探头监测叶片振动的方法和装置公开(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。
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30.发明申请Partial Discharge Coupler for Application on High Voltage Generator Bus Works 有权部分放电耦合器应用于高压发电机总线工程公开(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。
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