公开(公告)号：US20110277535A1

公开(公告)日：2011-11-17

申请号：US13191711

申请日：2011-07-27

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: G01N29/00

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：US07775114B2

公开(公告)日：2010-08-17

申请号：US11861532

申请日：2007-09-26

Applicant: Michael Twerdochlib ,  John F. DeMartini

Inventor： Michael Twerdochlib ,  John F. DeMartini

IPC: G01N29/00

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：US07654145B2

公开(公告)日：2010-02-02

申请号：US11862752

申请日：2007-09-27

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: G01M13/00 ,  G01H17/00 ,  G01M19/00

CPC classification number: G01H1/06 ,  G01H1/003

Abstract: A method of measuring vibration in a bladed rotor structure with a vibration monitor. The vibration monitor includes a sensor for sensing passage of the sensor targets on radially outer portions of the blade structure, and the sensor generates signals corresponding to target passing events. An excitation structure is provided including at least one air jet for providing an excitation force to the blade structure. The blade structure is rotated about an axis of rotation and the air jet is driven in a circular path about the axis of rotation at a different rotational speed to apply a non-synchronous excitation force to the blade structure.

Abstract translation: 用振动监测器测量叶片转子结构中的振动的方法。 振动监测器包括用于感测传感器目标在叶片结构的径向外部上的通过的传感器，并且传感器产生对应于目标通过事件的信号。 提供了一种激励结构，其包括用于向叶片结构提供激励力的至少一个空气喷射。 叶片结构围绕旋转轴线旋转，并且空气射流以不同旋转速度的旋转轴线以圆形路径驱动，以将不同步的激励力施加到叶片结构。

公开(公告)号：US20100014555A1

公开(公告)日：2010-01-21

申请号：US12574096

申请日：2009-10-06

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: G01J5/00

CPC classification number: G01J5/0003 ,  G01J5/524 ,  G01J5/602 ,  G01J2005/0074

Abstract: A method for measuring the differential emissivity between two sites on the surface of a body and the temperature of the two sites. The method includes a plurality of measurements of the infrared radiation arising from each of the two sites under a number of different conditions. Some of the measurements include irradiation by external infrared radiation at a known wavelength and intensity. The infrared radiation arising from each of the sites may include emitted radiation, reflected ambient radiation, and reflected external radiation. Additionally, the temperature determined using the method described can be used to calibrate infrared imaging devices used to inspect the entire body.

Abstract translation: 一种用于测量身体表面两个位置与两个部位的温度之间的差异发射率的方法。 该方法包括在多个不同条件下从两个位置中的每一个产生的红外辐射的多个测量。 一些测量包括以已知波长和强度的外部红外辐射照射。 从每个地点产生的红外辐射可能包括发射的辐射，反射的环境辐射和反射的外部辐射。 另外，使用所述方法确定的温度可用于校准用于检查整个身体的红外成像装置。

公开(公告)号：US07379632B1

公开(公告)日：2008-05-27

申请号：US11711824

申请日：2007-02-27

Applicant: Michael Twerdochlib

Inventor： Michael Twerdochlib

IPC: G02B6/34

CPC classification number: G01B11/18 ,  G02B6/02171

Abstract: An optical measurement device for measuring strain related to deformation of a deformable surface of a component. The optical measurement device includes a fiber tension structure including opposing longitudinal end sections attached to the deformable surface. An optical fiber is tensioned by the fiber tension structure and includes a section defining a Bragg grating. The fiber tension structure includes a displaceable portion for forming a structural break between the longitudinal end sections where the fiber tension structure separates to form a gap between the first and second longitudinal end sections. The longitudinal end sections are movable independently of each other after formation of the structural break in the fiber tensioning structure.

Abstract translation: 一种用于测量与部件的可变形表面的变形有关的应变的光学测量装置。 光学测量装置包括纤维张力结构，其包括附接到可变形表面的相对的纵向端部。 光纤被纤维张力结构张紧并且包括限定布拉格光栅的部分。 纤维张力结构包括可移动部分，用于在纵向端部之间形成结构断裂，其中纤维张力结构分离以在第一和第二纵向端部之间形成间隙。 在纤维张紧结构中形成结构断裂之后，纵向端部彼此独立地移动。

公开(公告)号：US20080101683A1

公开(公告)日：2008-05-01

申请号：US11800789

申请日：2007-05-07

Applicant: Paul J. Zombo ,  Michael Twerdochlib ,  Jan P. Smed ,  Dennis H. Lemieux ,  Evangelos V. Diatzikis ,  Hans-Gerd Brummel

Inventor： Paul J. Zombo ,  Michael Twerdochlib ,  Jan P. Smed ,  Dennis H. Lemieux ,  Evangelos V. Diatzikis ,  Hans-Gerd Brummel

IPC: G01M15/14 ,  G01N25/72 ,  G06K9/00 ,  G02F1/01 ,  H01L31/00

CPC classification number: G01N25/72 ,  F01D21/003 ,  F01D21/12 ,  F05D2270/112 ,  F05D2270/3032 ,  F05D2270/44 ,  G01J5/0022 ,  G01J2005/0077 ,  G01M15/14

Abstract: Aspects of the invention are directed to a visual-based system and method for non-destructively evaluating an uncoated turbine engine component. Aspects of the invention are well suited for high speed, high temperature components. Radiant energy emitted from an uncoated turbine engine component can be captured remotely and converted into a useful form, such as a high resolution image of the component. A plurality of images of the component can be captured over time and evaluated to identify failure modes. The system can also measure and map the temperature and/or radiance of the component. The system can facilitate the non-destructive evaluation of uncoated turbine components during engine operation without disassembly of the engine, thereby providing significant time and cost savings. Further, the system presents data to a user with sufficient context that allows an engine operator can evaluate the information with an increased degree of confidence and certainty.

Abstract translation: 本发明的方面涉及一种用于非破坏性评估未涂覆的涡轮发动机部件的基于视觉的系统和方法。 本发明的方面非常适用于高速，高温组件。 从未涂覆的涡轮发动机部件发射的辐射能量可以被远程捕获并转换成有用的形式，例如部件的高分辨率图像。 可以随时间捕获组件的多个图像，并进行评估以识别故障模式。 该系统还可以测量和映射组件的温度和/或辐射。 该系统可以促进在发动机运行期间对未涂覆的涡轮机部件进行非破坏性评估，而无需拆卸发动机，从而节省大量的时间和成本。 此外，系统向具有足够上下文的用户呈现数据，允许引擎操作者可以以更高的置信度和确定性来评估信息。

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。