公开(公告)号：US4753048A

公开(公告)日：1988-06-28

申请号：US841776

申请日：1986-03-20

申请人： Haruhiko Asada ,  Neil Goldfine

发明人： Haruhiko Asada ,  Neil Goldfine

IPC分类号： B24B27/033 ,  B25J15/00 ,  B25J17/02 ,  B24B1/00

CPC分类号： B24B27/033 ,  B25J15/0019 ,  B25J17/0208 ,  G05B2219/50353

摘要： There is disclosed a method of and apparatus for improving surface finishing and accuracy in a grinding operation employing a manipulator such as a robot which is coupled to a rotary grinding tool. The method comprises reducing the coupling effects between the tool motion whick is tangential to a workpiece surface and tool motion which is normal to the surface to obtain the optimum performance. The method involves adding compliance to the grinding tool in the tangential direction while maintaining higher stiffness in the normal direction. A robot is disclosed which is made in accordance with the method.

摘要翻译： 公开了一种使用诸如耦合到旋转研磨工具的机器人的机械手进行的研磨操作中的表面精加工和精度的改善的方法和装置。 该方法包括减少与工件表面相切的工具运动和与表面垂直以获得最佳性能的工具运动之间的耦合效应。 该方法包括在切向方向上增加磨削工具的顺应性，同时保持正常方向上的较高刚度。 公开了一种根据该方法制造的机器人。

公开(公告)号：US20060009923A1

公开(公告)日：2006-01-12

申请号：US11227307

申请日：2005-09-15

申请人： Ian Shay ,  Neil Goldfine ,  Andrew Washabaugh ,  Darrell Schlicker

发明人： Ian Shay ,  Neil Goldfine ,  Andrew Washabaugh ,  Darrell Schlicker

IPC分类号： G01B7/00

CPC分类号： G01N27/82 ,  G01N27/902

摘要： Magnetic field sensor probes are disclosed which comprise primary or drive windings having a plurality of current carrying segments. The relative magnitude and direction of current in each segment are adjusted so that the resulting interrogating magnetic field follows a desired spatial distribution. By changing the current in each segment, more than one spatial distribution for the magnetic field can be imposed within the same sensor footprint. Example envelopes for the current distributions approximate a sinusoid in Cartesian coordinates or a first-order Bessel function in polar coordinates. One or more sensing elements are used to determine the response of a test material to the magnetic field. These sense elements can be configured into linear or circumferential arrays.

摘要翻译： 公开了磁场传感器探针，其包括具有多个载流段的初级或驱动绕组。 调整每个段中的电流的相对幅度和方向，使得所得到的询问磁场遵循所需的空间分布。 通过改变每个段中的电流，可以在相同的传感器覆盖区内施加多于一个磁场的空间分布。 当前分布的示例包络近似于笛卡尔坐标中的正弦波或极坐标中的一阶贝塞尔函数。 一个或多个感测元件用于确定测试材料对磁场的响应。 这些感测元件可以被配置成线性或圆周阵列。

公开(公告)号：US20050007106A1

公开(公告)日：2005-01-13

申请号：US10853009

申请日：2004-05-24

申请人： Neil Goldfine ,  Darrell Schlicker ,  Andrew Washabaugh ,  Ian Shay ,  Mark Windoloski ,  Christopher Root ,  Vladimir Zilberstein ,  David Grundy ,  Vladimir Tsukernik

发明人： Neil Goldfine ,  Darrell Schlicker ,  Andrew Washabaugh ,  Ian Shay ,  Mark Windoloski ,  Christopher Root ,  Vladimir Zilberstein ,  David Grundy ,  Vladimir Tsukernik

IPC分类号： G01N27/82 ,  G01N27/90 ,  G01N27/72

CPC分类号： G01N27/9046 ,  G01N27/82

摘要： Combined wound and micro-fabricated winding constructs are described for the inspection of materials and the detection and characterization of hidden features or flaws. These constructs can be configured as sensors or sensor arrays that are surface mounted or scanned over conducting and/or magnetizable test materials. The well-defined geometry obtained micro-fabricated windings and from carefully wound coils with known winding positions permits the use of model based inversions of sensed responses into material properties. In a preferred embodiment, the primary winding is a wound coil and the sense elements are etched or printed. The drive or sense windings can also be mounted under fasteners to improve sensitivity to hidden flaws. Ferrites and other means may be used to guide the magnetic flux and enhance the magnetic field in the test material.

摘要翻译： 描述了组合伤口和微制造的缠绕结构，用于材料的检查和隐藏特征或缺陷的检测和表征。 这些结构可以配置为在导电和/或可磁化测试材料上进行表面安装或扫描的传感器或传感器阵列。 精确定义的几何形状获得微制造的绕组和从已知缠绕位置的小心缠绕的线圈允许使用基于模型的感测响应的反演到材料特性中。 在优选实施例中，初级绕组是缠绕线圈，并且感测元件被蚀刻或印刷。 驱动或感测绕组也可以安装在紧固件下，以提高对隐藏缺陷的敏感性。 可以使用铁氧体等手段来引导磁通量并增强测试材料中的磁场。

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：US20070236214A1

公开(公告)日：2007-10-11

申请号：US11807873

申请日：2007-05-30

申请人： Neil Goldfine ,  Darrell Schlicker ,  Karen Walrath ,  Andrew Washabaugh

发明人： Neil Goldfine ,  Darrell Schlicker ,  Karen Walrath ,  Andrew Washabaugh

IPC分类号： G01N27/72

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

摘要： Reference standards or articles having prescribed levels of damage are fabricated by monitoring an electrical property of the article material, mechanically loading the article, and removing the load when a change in electrical properties indicates a prescribed level of damage. The electrical property is measured with an electromagnetic sensor, such as a flexible eddy current sensor, attached to a material surface, which may be between layers of the article material. The damage may be in the form of a fatigue crack or a change in the mechanical stress underneath the sensor. The shape of the article material may be adjusted to concentrate the stress so that the damage initiates under the sensor. Examples adjustments to the article shape include the use of dogbone geometries with thin center sections, reinforcement ribs on the edges of the article, and radius cut-outs in the vicinity of the thin section.

摘要翻译： 通过监测物品的电气性能，机械装载物品以及当电气特性的变化表示规定的损伤程度时，去除负载来制造具有规定的损伤程度的参考标准或物品。 电气特性用电磁传感器（例如柔性涡流传感器）测量，该传感器连接到材料表面，材料表面可以在物品层之间。 损伤可能是疲劳裂纹的形式或传感器下面的机械应力的变化。 可以调节制品材料的形状以集中应力，使得损伤在传感器下方开始。 对物品形状的实例调整包括使用具有薄中心部分的狗骨形几何形状，在制品的边缘上使用加强筋，以及在薄部分附近使用半径切口。

公开(公告)号：US20070227255A1

公开(公告)日：2007-10-04

申请号：US11698296

申请日：2007-01-25

申请人： Neil Goldfine ,  Vladimir Zilberstein ,  David Grundy ,  Andrew Washabaugh ,  Darrell Schlicker ,  Ian Shay ,  Robert Lyons ,  Christopher Craven ,  Christopher Root ,  Mark Windoloski ,  Volker Weiss

发明人： Neil Goldfine ,  Vladimir Zilberstein ,  David Grundy ,  Andrew Washabaugh ,  Darrell Schlicker ,  Ian Shay ,  Robert Lyons ,  Christopher Craven ,  Christopher Root ,  Mark Windoloski ,  Volker Weiss

IPC分类号： G01L1/12

CPC分类号： G01N27/902 ,  G01N27/023 ,  G01N27/24 ,  G01N27/904 ,  G01N27/9046 ,  G01N27/9053

摘要： Observability of damage precursor, damage and usage states, or event occurrence may be enhanced by modifying component materials to include self-monitoring materials or by processing test material to alter the surface properties. The properties of the self monitoring materials, such as magnetic permeability or electrical conductivity, are monitored with electromagnetic sensors and provide greater property variations with component condition than the original component material. Processing includes shot peening or laser welding.

公开(公告)号：US20070007955A1

公开(公告)日：2007-01-11

申请号：US11473297

申请日：2006-06-22

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

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

IPC分类号： G01N27/82

CPC分类号： G01N27/82

摘要： Damage and usage conditions in the vicinity of fasteners in joined structures are nondestructively evaluated using the fasteners themselves. Sensors or sensor conductors are embedded in the fasteners or integrated within the fastener construct, either in the clearance gap between the fastener and the structure material or as an insert inside the shaft or pin of the fastener. The response of the material to an interrogating magnetic or electric field is then measured with drive and sense electrodes both incorporated into the fastener or with either drive or sense electrodes external to the fastener on the material surface. In another configuration, an electric current is applied to one or more fasteners and the electric potential is measured at locations typically between the driven electrodes applying the current. The potential is measured circumferentially around the fastener at locations on the material surface or across pairs of fasteners throughout or along the joint. The voltage or potential measurement electrodes may be collinear with the drive electrodes. State sensitive material layers can be added either to the fastener or the test material layers in order to enhance observability of the test material condition, such as the presence of a crack, mechanical stress, delamination, or disbond.

摘要翻译： 使用紧固件本身对接合结构中紧固件附近的损坏和使用条件进行非破坏性评估。 传感器或传感器导体嵌入到紧固件中或整合在紧固件结构内，无论是在紧固件和结构材料之间的间隙中，或者作为紧固件的轴或销内的插入件。 然后测量材料对询问磁场或电场的响应，其中驱动和感测电极两者并入到紧固件中，或者与材料表面上的紧固件外部的驱动或感测电极结合。 在另一种配置中，电流被施加到一个或多个紧固件，并且在通常在施加电流的驱动电极之间的位置处测量电位。 在整个或沿着接头的材料表面上或穿过成对的紧固件的位置周围围绕紧固件测量电位。 电压或电位测量电极可与驱动电极共线。 可以将状态敏感材料层添加到紧固件或测试材料层中，以便增强测试材料状况的可观察性，例如存在裂纹，机械应力，分层或脱粘。

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：US20050083050A1

公开(公告)日：2005-04-21

申请号：US10935037

申请日：2004-09-07

申请人： Vladimir Tsukernik ,  Neil Goldfine ,  Andrew Washabaugh ,  Darrell Schlicker ,  Karen Walrath ,  Eric Hill ,  Vladimir Zilberstein

发明人： Vladimir Tsukernik ,  Neil Goldfine ,  Andrew Washabaugh ,  Darrell Schlicker ,  Karen Walrath ,  Eric Hill ,  Vladimir Zilberstein

IPC分类号： G01N27/82 ,  G01M17/02

CPC分类号： G01N27/82

摘要： Pressurized elastic support structures or balloons are used to press flexible sensors against the surface a material under test. Rigid support elements can also be incorporated into the inspection devices to maintain the basic shape of the inspection structure and to facilitate positioning of the sensors near the test material surface. The rigid supports can have the approximate shape of the test material surface or the pressurization of one or more balloons can be used to conform the sensor to the shape of the test material surface.

摘要翻译： 使用加压的弹性支撑结构或气球将柔性传感器压在表面上，以测试被测材料。 也可以将刚性支撑元件结合到检查装置中，以维持检查结构的基本形状并且便于传感器在测试材料表面附近的定位。 刚性支撑件可以具有测试材料表面的近似形状，或者可以使用一个或多个气囊的加压使传感器与测试材料表面的形状相一致。

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。