公开(公告)号：US20070245834A1

公开(公告)日：2007-10-25

申请号：US11702422

申请日：2007-02-05

申请人： Neil Goldfine ,  Darrell Schlicker ,  David Grundy ,  Yonko Sheiretov ,  Leandro Lorilla ,  Vladimir Zilberstein ,  Volker Weiss ,  J. Lovett ,  Andrew Washabaugh

发明人： Neil Goldfine ,  Darrell Schlicker ,  David Grundy ,  Yonko Sheiretov ,  Leandro Lorilla ,  Vladimir Zilberstein ,  Volker Weiss ,  J. Lovett ,  Andrew Washabaugh

IPC分类号： G01L3/02

CPC分类号： G01L1/125

摘要： Magnetic or electric field sensors are mounted against a material surface and used for stress, strain, and load monitoring of rotating components such as vehicle drive trains. The stationary sensors are mounted at multiple locations around the component and used assess the stress on the component at multiple rotational positions. The sensor response is typically converted into a material property, such as magnetic permeability or electrical conductivity, which accounts for any coating thickness that may be present between the sensor and mounting surface. The sensors are not in direct contact with the rotating component and are typically mounted on an annular material or ring that encircles the rotating component. Measurements of the annular material properties, such as the stress, are related to the stress on the rotating component and discrete features on the component. As a particular example, the rotating component is a planetary gear system, with sensors mounted on the ring gear and the discrete features are carrier plate posts. The sensors are preferably mounted at equal distances around the circumference of the component. The sensors and instrumentation may be removable and reusable for monitoring of additional components.

摘要翻译： 磁场或电场传感器安装在材料表面上，用于对诸如车辆传动系的旋转部件进行应力，应变和负载监测。 固定式传感器安装在组件周围的多个位置，用于评估组件在多个旋转位置的应力。 传感器响应通常被转换成诸如磁导率或导电性的材料性质，其考虑了传感器和安装表面之间可能存在的任何涂层厚度。 传感器不与旋转部件直接接触，并且通常安装在环绕旋转部件的环形材料或环上。 环形材料特性（如应力）的测量与旋转部件上的应力和部件上的离散特征有关。 作为具体示例，旋转部件是行星齿轮系统，其中传感器安装在齿圈上，并且分立的特征是承载板柱。 传感器优选地围绕部件的圆周以相等的距离安装。 传感器和仪器可能是可拆卸的，可重复使用，用于监控附加部件。

公开(公告)号：US20060247896A1

公开(公告)日：2006-11-02

申请号：US11371315

申请日：2006-03-07

申请人： Neil Goldfine ,  Darrell Schlicker ,  Yanko Sheiretov ,  Andrew Washabaugh ,  David Grundy ,  Vladimir Zilberstein

发明人： Neil Goldfine ,  Darrell Schlicker ,  Yanko Sheiretov ,  Andrew Washabaugh ,  David Grundy ,  Vladimir Zilberstein

IPC分类号： G06F15/00

CPC分类号： G01N22/00

摘要： The condition of insulating and semiconducting dielectric materials is assessed by a sensor array that uses electric fields to interrogate the test material. The sensor has a linear array of parallel drive conductors interconnected to form a single drive electrode and sense conductors placed on each side of and parallel to a drive conductor. Subsets of the sense conductors are interconnected to form at least two sense elements sensitive to different material regions. The sense conductors may be at different distances to the drive conductors, enabling measurement sensitivity to different depths into the test material. The material condition is assessed directly from the sense element responses or after conversion to an effective material property, such as an electrical conductivity or dielectric permittivity.

摘要翻译： 绝缘和半导体介电材料的条件通过使用电场询问测试材料的传感器阵列来评估。 传感器具有互连以形成单个驱动电极的线性阵列和放置在驱动导体的平行于驱动导体的每一侧上的感测导体。 感测导体的子集互连以形成对不同材料区域敏感的至少两个感测元件。 感测导体可以距离驱动导体不同的距离，使测量灵敏度不同于测试材料的深度。 材料条件直接由感应元件响应或转换为有效材料性质（如导电率或介电常数）进行评估。

公开(公告)号：US20060009865A1

公开(公告)日：2006-01-12

申请号：US11079912

申请日：2005-03-14

申请人： Neil Goldfine ,  Vladimir Zilberstein ,  Ian Shay ,  Christopher Craven ,  David Grundy ,  Volker Weiss ,  Andrew Washabaugh

发明人： Neil Goldfine ,  Vladimir Zilberstein ,  Ian Shay ,  Christopher Craven ,  David Grundy ,  Volker Weiss ,  Andrew Washabaugh

IPC分类号： G05B13/02 ,  G05D23/00

CPC分类号： G01N27/02 ,  G01N19/00 ,  G01N25/00 ,  G01N27/60 ,  G01N27/72 ,  G05D23/1931 ,  G05D23/22 ,  G05D23/24 ,  G05D23/26

摘要： The condition of internal or hidden material layers or interfaces is monitored and used for control of a process that changes a condition of a material system. The material system has multiple component materials, such as layers or embedded constituents, or can be represented with multiple layers to model spatial distributions in the material properties. The material condition changes as a result of a process performed on the material, such as by cold working, or from functional operation. Sensors placed proximate to the test material surface or embedded between material layers are used to monitor a material property using magnetic, electric, or thermal interrogation fields. The sensor responses are converted into states of the material condition, such as temperature or residual stress, typically with a precomputed database of sensor responses. The sensor responses can also be used to determine properties of the test material, such as electrical conductivity or magnetic permeability, prior to conversion to the material state. The states are used to support control decisions that control the process or operation causing the material condition to change.

公开(公告)号：US20060082366A1

公开(公告)日：2006-04-20

申请号：US11071051

申请日：2005-03-02

申请人： Neil Goldfine ,  Darrell Schlicker ,  Karen Walrath ,  Volker Weiss ,  Andrew Washabaugh ,  Vladimir Zilberstein

发明人： Neil Goldfine ,  Darrell Schlicker ,  Karen Walrath ,  Volker Weiss ,  Andrew Washabaugh ,  Vladimir Zilberstein

IPC分类号： G01N27/82

CPC分类号： G01N27/72 ,  G01B7/24 ,  G01B7/34 ,  G01N27/90 ,  G01N27/902 ,  G01R33/12

摘要： Inductive sensors measure the near surface properties of conducting and magnetic material. A sensor may have primary windings with parallel extended winding segments to impose a spatially periodic magnetic field in a test material. Those extended portions may be formed by adjacent portions of individual drive coils. Sensing elements provided every other half wavelength may be connected together in series while the sensing elements in adjacent half wavelengths are spatially offset. Certain sensors include circular segments which create a circularly symmetric magnetic field that is periodic in the radial direction. Such sensors are particularly adapted to surround fasteners to detect cracks and can be mounted beneath a fastener head. In another sensor, sensing windings are offset along the length of parallel winding segments to provide material measurements over different locations when the circuit is scanned over the test material. The distance from the sensing elements to the ends of the primary winding may be kept constant as the offset space in between sensing elements is varied. An image of the material properties can be provided as the sensor is scanned across the material.

摘要翻译： 感应传感器测量导电和磁性材料的近表面性质。 传感器可以具有平行延伸的绕组段的初级绕组，以在测试材料中施加空间周期的磁场。 这些延伸部分可以由各个驱动线圈的相邻部分形成。 每隔一半波长提供的感测元件可以串联连接在一起，而相邻半波长中的感测元件在空间上偏移。 某些传感器包括产生在径向周期性的圆形对称磁场的圆形段。 这种传感器特别适于围绕紧固件以检测裂缝并且可以安装在紧固件头部下方。 在另一个传感器中，感测绕组沿着平行绕组段的长度偏移，以便在电路扫描测试材料时，通过不同位置提供材料测量。 当感测元件之间的偏移空间变化时，从感测元件到初级绕组的端部的距离可以保持恒定。 当传感器跨越材料扫描时，可以提供材料特性的图像。

公开(公告)号：US20050146324A1

公开(公告)日：2005-07-07

申请号：US10989115

申请日：2004-11-15

申请人： Neil Goldfine ,  Vladimir Zilberstein ,  David Grundy ,  Volker Weiss ,  Andrew Washabaugh

发明人： Neil Goldfine ,  Vladimir Zilberstein ,  David Grundy ,  Volker Weiss ,  Andrew Washabaugh

IPC分类号： G01N27/82 ,  G01N27/90

CPC分类号： G01N27/90

摘要： Fabrication of samples having material conditions or damage representative of actual components inspected by nondestructive testing involves sensors placed near or mounted on the material surface, such as flexible eddy current sensors or sensor arrays, to monitor the material condition while the sample is being processed. These sample typically have real cracks in or around holes, on curved surfaces, in and under coatings, and on shot peened or otherwise preconditioned surfaces. Processing, such as mechanical or thermal loading to introduce fatigue damage, is stopped once the material condition reaches a predetermined level.

摘要翻译： 通过非破坏性测试来检测具有代表实际部件的材料条件或损坏的样品的制造涉及放置在材料表面附近或安装在材料表面上的传感器，例如柔性涡流传感器或传感器阵列，以在样品被处理时监测材料状况。 这些样品通常在孔中或周围具有真实的裂纹，在弯曲表面上，在涂层内和在涂层下，以及在喷丸硬化或其它预处理的表面上。 一旦材料状态达到预定水平，就停止诸如机械或热负载以引入疲劳损伤的加工。

公开(公告)号：US20070239407A1

公开(公告)日：2007-10-11

申请号：US11653067

申请日：2007-01-12

申请人： Neil Goldfine ,  Vladimir Zilberstein ,  Volker Weiss ,  Yanko Sheiretov

发明人： Neil Goldfine ,  Vladimir Zilberstein ,  Volker Weiss ,  Yanko Sheiretov

IPC分类号： G06F17/10

CPC分类号： G01N27/82 ,  F05B2270/109 ,  F05B2270/404 ,  G01B7/34 ,  G06N7/005

摘要： Predicting the remaining life of individual aircraft, fleets of aircraft, aircraft components and subpopulations of these components. This is accomplished through the use of precomputed databases of response that are generated from a model for the nonlinear system behavior prior to the time that decisions need to be made concerning the disposition of the system. The database is calibrated with a few data points, to account for unmodeled system variables, and then used with an input variable to predict future system behavior. These methods also permit identification of the root causes for observed system behavior. The use of the response databases also permits rapid estimations of uncertainty estimates for the system behavior, such as remaining life estimates, particularly, when subsets of an input variable distribution are passed through the database and scaled appropriately to construct the output distribution. A specific example is the prediction of remaining life for an aircraft component where the model calculates damage evolution, input variables are a crack size and the number of cycles, and the predicted parameters are the actual stress on the component and the remaining life.

摘要翻译： 预测个别飞机，飞机机队，飞机部件和这些部件的子群体的剩余寿命。 这是通过使用预先计算的响应数据库来实现的，该数据库是在关于系统的配置的决定之前从非线性系统行为的模型生成的。 数据库使用几个数据点进行校准，以解释未建模的系统变量，然后与输入变量一起使用以预测未来的系统行为。 这些方法还允许识别观察到的系统行为的根本原因。 响应数据库的使用还允许对系统行为的不确定性估计的快速估计，例如剩余寿命估计，特别是当输入变量分布的子集通过数据库并适当地缩放以构建输出分布时。 一个具体的例子是对模型计算损伤演化的飞机部件的剩余寿命的预测，输入变量是裂纹尺寸和循环次数，预测参数是组件上的实际应力和剩余寿命。