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公开(公告)号：US20220358630A1
公开(公告)日：2022-11-10
申请号：US17662634
申请日：2022-05-09
申请人： JENTEK Sensors, Inc.
摘要： A system and method are disclosed for enhancing pit detection and sizing in a test object. Response signatures are created and stored in a signature library to characterize various sensor responses (liftoff, orientation) and pit properties (e.g., depth, width), possibly with or without additional considerations (e.g., edges, cracks). A sensor is placed on and scanned across a surface of interest on the test object. During scanning the sensor is measured repeatedly at regular intervals. An encoder may be used to record the sensor position for each measurement. The measurement results are then correlated with one or more signatures in the signature library. A threshold is used to determine if the correlation is indicative of the detection of a pit. If so additional processing may be performed to estimate pit properties.
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2.发明申请公开(公告)号：US20190383771A1
公开(公告)日：2019-12-19
申请号：US16445166
申请日：2019-06-18
申请人： JENTEK Sensors, Inc.
IPC分类号： G01N27/72 , B33Y50/00 , B29C64/386
摘要： Disclosed are method and apparatus for measuring material properties. Segmented field sensors have multiple sensing elements at different spatial geometries to capture field components having substantially different depths of penetration. These sensors are excited and measured on these different sensing elements to facilitate characterization of unknown material properties. This is illustrated in some embodiments using eddy current sensors to characterize materials that are frequency dispersive and/or do not produce a measurable phase shifts. Only a single scalar quantity may provide independent information from one or more of the sensing elements. Property estimation techniques, such as those using precomputed databases of sensor responses are used to estimate the unknown material properties.
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公开(公告)号：US20190323992A1
公开(公告)日：2019-10-24
申请号：US16433320
申请日：2019-06-06
申请人： JENTEK Sensors, Inc.
摘要： System and method for characterizing material condition. The system includes a sensor, impedance instrument and processing unit to collect measurements and assess material properties. A model of the system may be used to enable accurate measurements of multiple material properties. A cylindrical model for an electromagnetic field sensor is disclosed for modeling substantially cylindrically symmetric material systems. Sensor designs and and data processing approaches are provided to focus the sensitivity of the sensor to localize material conditions. Improved calibration methods are shown. Sizing algorithms are provided to estimate the size of defects such as cracks and corrosion. Corrective measures are provided where the actual material configuration differs from the data processing assumptions. Methods are provided for use of the system to characterize material condition, and detailed illustration is given for corrosion, stress, weld, heat treat, and mechanical damage assessment.
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公开(公告)号：US20160349214A1
公开(公告)日：2016-12-01
申请号：US15169361
申请日：2016-05-31
申请人： JENTEK Sensors, Inc.
发明人： Neil J. Goldfine , Yanko K. Sheiretov , Scott A. Denenberg , Karen Walrath , Todd M. Dunford , Kevin P. Dixon , Christopher T. Martin
摘要： A sensor system has an integrated sensor cartridge, and instrument, and an instrument side connector. The integrated sensor cartridge has a mechanical support, a flexible sensor array, and a rigid connector. The mechanical support is shaped to facilitate sensor measurements on a test object. The rigid connector has a mechanical connection and an electrical connection for simultaneous electrical and mechanical mating of the sensor cartridge to the instrument side connector. The flexible array has a connecting portion, a lead portion, and a sensing portion. The sensing portion is attached to the mechanical support, and the connecting portion interfaces with the rigid connector. The connecting portion may form the electrical connection of the rigid connector or may simply mate internally with the electrical connection. The instrument side connector is connected to the instrument which measures the response of the flexible sensor array. Test objects may include bolt holes, fillets, disk slots, and other types of parts or components.
摘要翻译： 传感器系统具有集成的传感器盒，仪器和仪器侧连接器。 集成传感器盒具有机械支撑件，柔性传感器阵列和刚性连接器。 机械支撑被成形为便于测试对象上的传感器测量。 刚性连接器具有机械连接和用于将传感器盒同时电气和机械配合到仪器侧连接器的电连接。 柔性阵列具有连接部分，引线部分和感测部分。 感测部分附接到机械支撑件，并且连接部分与刚性连接器接合。 连接部分可以形成刚性连接器的电连接，或者可以在内部简单地与电连接配合。 仪器侧连接器连接到测量柔性传感器阵列响应的仪器。 测试对象可能包括螺栓孔，圆角，圆盘槽和其他类型的零件或组件。
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5.发明申请METHOD AND APPARATUS FOR INSPECTION OF CORROSION AND OTHER DEFECTS THROUGH INSULATION 有权通过绝缘检查腐蚀和其他缺陷的方法和装置公开(公告)号：US20160238514A1
公开(公告)日：2016-08-18
申请号：US15003483
申请日：2016-01-21
申请人： Jentek Sensors, Inc.
IPC分类号： G01N17/04
CPC分类号： G01N17/04 , G01N27/902 , G06F17/00
摘要： Detection of corrosion and other defects in piping is needed to prevent catastrophic pipeline failure. Sensors, systems and methods are provided to enable detection of such defects. These apparatus and methods are configured to characterize pipe protected by insulation and conductive weather protection. The sensors may utilize inductive and/or solid state sensing element arrays operated in a magnetic field generated in part by a drive winding of the sensor. Multiple excitation frequencies are used to generate the magnetic field and record corresponding sensing element responses. Relatively high excitation frequencies may be used to estimate the properties of the weather protection and sensor lift-off while lower frequencies may be used to detect internal and external pipe damage. Linear arrays may be moved to generate damage images of the pipe providing size and location information for defects. Two dimensional sensor arrays may be used to provide imaging without moving the sensor.
摘要翻译： 需要检测管道中的腐蚀和其他缺陷，以防止灾难性管道故障。 提供传感器，系统和方法以便能够检测这些缺陷。 这些设备和方法被配置为表征由绝缘和导电天气保护保护的管道。 传感器可以利用在部分由传感器的驱动绕组产生的磁场中操作的感应和/或固态感测元件阵列。 使用多个激发频率来产生磁场并记录相应的感测元件响应。 可以使用相对较高的激发频率来估计天气保护和传感器剥离的性质，而较低频率可用于检测内部和外部管道损坏。 可以移动线性阵列以产生管道的损伤图像，为缺陷提供尺寸和位置信息。 可以使用二维传感器阵列来提供成像而不移动传感器。
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公开(公告)号：US20130269450A1
公开(公告)日：2013-10-17
申请号：US13853853
申请日：2013-03-29
申请人： Jentek Sensors, Inc.
IPC分类号： G01L1/12
摘要： A system and method for measuring load and an additional property using a sensor gasket embedded between two components. The sensor gasket may include a sensor layer and a conductive layer. A gap between the sensor layer and conductive layer may be filled with a load sensitive material. The thickness of the load sensitive material varies with the load applied to the two components between which the sensor gasket sits. The sensor operates in a first mode to obtain a sensor measurement that depends on the distance between the sensor layer and conductive layer. The sensor measurement then used to estimate the applied load. The sensor operates in a second mode to estimate a property of one or both of the components. The property of interest may be cracking, material loss due to corrosion, temperature, or another property of the component.
摘要翻译： 一种用于测量负载的系统和方法，以及使用嵌入在两个部件之间的传感器垫片的附加属性。 传感器垫片可以包括传感器层和导电层。 传感器层和导电层之间的间隙可以填充负载敏感材料。 负载敏感材料的厚度随着施加到传感器垫圈所在的两个部件的负载而变化。 传感器以第一模式操作以获得取决于传感器层和导电层之间的距离的传感器测量。 然后使用传感器测量来估计施加的负载。 传感器以第二模式操作以估计一个或两个部件的属性。 感兴趣的性质可能是破裂，由于腐蚀，温度或部件的另一性能导致的材料损失。
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7.发明授权Method and apparatus for inspection of corrosion and other defects through insulation 有权通过绝缘检查腐蚀和其他缺陷的方法和装置公开(公告)号：US09255875B2
公开(公告)日：2016-02-09
申请号：US13660914
申请日：2012-10-25
申请人： Jentek Sensors, Inc.
CPC分类号： G01N17/04 , G01N27/902 , G06F17/00
摘要： Detection of corrosion and other defects in piping is needed to prevent catastrophic pipeline failure. Sensors, systems and methods are provided to enable detection of such defects. These apparatus and methods are configured to characterize pipe protected by insulation and conductive weather protection. The sensors may utilize inductive and/or solid state sensing element arrays operated in a magnetic field generated in part by a drive winding of the sensor. Multiple excitation frequencies are used to generate the magnetic field and record corresponding sensing element responses. Relatively high excitation frequencies may be used to estimate the properties of the weather protection and sensor lift-off while lower frequencies may be used to detect internal and external pipe damage. Linear arrays may be moved to generate damage images of the pipe providing size and location information for defects. Two dimensional sensor arrays may be used to provide imaging without moving the sensor.
摘要翻译： 需要检测管道中的腐蚀和其他缺陷，以防止灾难性管道故障。 提供传感器，系统和方法以便能够检测这些缺陷。 这些设备和方法被配置为表征由绝缘和导电天气保护保护的管道。 传感器可以利用在部分由传感器的驱动绕组产生的磁场中操作的感应和/或固态感测元件阵列。 使用多个激发频率来产生磁场并记录相应的感测元件响应。 可以使用相对较高的激发频率来估计天气保护和传感器剥离的性质，而较低频率可用于检测内部和外部管道损坏。 可以移动线性阵列以产生管道的损伤图像，为缺陷提供尺寸和位置信息。 可以使用二维传感器阵列来提供成像而不移动传感器。
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公开(公告)号：US20150160144A1
公开(公告)日：2015-06-11
申请号：US14626415
申请日：2015-02-19
申请人： Jentek Sensors, Inc.
发明人： Neil J. Goldfine , Vladimir A. Zilberstein , Ian C. Shay , Christopher A. Craven , David C. Grundy , Volker Weiss , Andrew P. Washabaugh
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.
摘要翻译： 监控内部或隐藏的材料层或界面的状况，并用于控制改变材料系统状态的过程。 材料系统具有多种组分材料，例如层或嵌入组分，或者可以用多层来表示材料性质中的空间分布。 材料状态由于通过冷加工或功能操作在材料上进行的过程而改变。 使用放置在测试材料表面附近或嵌入材料层之间的传感器用于使用磁，电或热询问场监测材料特性。 传感器响应被转换为材料状态的状态，例如温度或残余应力，通常具有传感器响应的预计算数据库。 在转换到材料状态之前，传感器响应也可用于确定测试材料的性质，例如导电性或磁导率。 这些状态用于支持控制过程或操作的控制决策，从而导致材料状况发生变化。
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公开(公告)号：US20150145510A1
公开(公告)日：2015-05-28
申请号：US14456567
申请日：2014-08-11
申请人： JENTEK Sensors, Inc.
IPC分类号： G01N27/90
CPC分类号： G01N27/90 , G01N27/9033 , G01R33/1215
摘要： A substantially planar eddy-current sensor having durability enhancing pillars in an active region is provided. The pillars are distributed and sized so as to have limited effect on the sensor's performance. When the sensor is mounted on a component such that the sensor experiences forces on a top and bottom surface, the pillars bear the load reducing the load bore by the active elements (e.g., drive winding, sense elements). A sensor with redundant drive windings and/or redundant sense elements is disclosed. The redundant elements may be connected to separate electronics. Another aspect relates to providing a reference transformer for calibration of a sensor. The secondary windings of the reference transformer are connected in series with the sense elements of the sensor to be calibrated. Transimpedance measurements are made when the drive winding of the reference transformer is excited. The measurements are used to correct transimpedance measurements made when the drive winding of the sensor is excited. A system having an impedance analyzer and a plurality of multiplexing units is disclosed for monitoring a plurality of sensor. Each multiplexing units directs an excitation signal to the drive winding of a respective sensor and returns, serially, the sense element responses back to the impedance analyzer. The system coordinates the excitation of each sensor and return of the sensor response to share a serial network. The multiplexing units may have a reference transformer for calibration of their respective sensors. Optical communication may be used.
摘要翻译： 提供了一种在有源区域中具有耐久性增强柱的基本平面的涡流传感器。 支柱的分布和尺寸是对传感器性能的影响有限的。 当传感器安装在组件上使得传感器在顶部和底部表面上经受力时，支柱承受由有源元件（例如，驱动绕组，感测元件）减小负载孔的负载。 公开了具有冗余驱动绕组和/或冗余感测元件的传感器。 冗余元件可以连接到单独的电子元件。 另一方面涉及提供用于校准传感器的参考变压器。 参考变压器的次级绕组与要校准的传感器的感测元件串联连接。 当参考变压器的驱动绕组被激励时进行跨阻抗测量。 测量用于校正当传感器的驱动绕组被激励时进行的跨阻抗测量。 公开了一种具有阻抗分析器和多个复用单元的系统，用于监视多个传感器。 每个复用单元将激励信号引导到相应传感器的驱动绕组，并将感测元件响应连续返回到阻抗分析器。 系统协调每个传感器的激励并返回传感器响应以共享串行网络。 复用单元可以具有用于校准其各自传感器的参考变压器。 可以使用光通信。
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公开(公告)号：US11268933B2
公开(公告)日：2022-03-08
申请号：US15796351
申请日：2017-10-27
申请人： JENTEK Sensors, Inc.
发明人： Neil J. Goldfine , Todd M. Dunford
IPC分类号： G01N27/90 , B22F3/105 , B33Y50/02 , B33Y10/00 , B33Y30/00 , G01N27/9013 , B22F10/20 , B22F10/30
摘要： Disclose is a system and method for real-time measurement and feedback of metrology and metallurgical data during additive manufacturing (AM) part fabrication. This solution promises to provide higher performance, lower cost AM parts. A sensor is placed either in the rake/roller or following the rake/roller so that it has no impact on the process efficiency and can be used to provide real-time feedback and an archived digital map of the entire part volume. The solution provides non-contact sensing of AM layer's electrical conductivity in a high-temperature environment, metallurgical property verification, porosity imaging, local defect detection and sizing, local material temperature monitoring, and grain anisotropy imaging. Part geometry, the AM powder, and the laser/material interface are monitored in real-time. Dual mode sensing using magnetoquasistatic and optical sensors enhance results. Real-time nonlinear control of the AM fabrication process is performed based on the sensor data.
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