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1. 发明申请

US20040056654A1 Magnetic field characterization of stresses and properties in materials 审中-公开
标题翻译：材料应力和性能的磁场表征
公开(公告)号：US20040056654A1
公开(公告)日：2004-03-25
申请号：US10441976
申请日：2003-05-20
申请人： JENTEK Sensors, Inc.
发明人： Neil J. Goldfine , Ian C. Shay , Darrell E. Schlicker , Andrew P. Washabaugh , David C. Grundy , Robert J. Lyons , Vladimir A. Zilberstein , Vladimir Tsukernik
IPC分类号： G01N027/72 , G01R033/12
CPC分类号： G01N27/9013
摘要： Described are methods for monitoring of stresses and other material properties. These methods use measurements of effective electrical properties, such as magnetic permeability and electrical conductivity, to infer the state of the test material, such as the stress, temperature, or overload condition. The sensors, which can be single element sensors or sensor arrays, can be used to periodically inspect selected locations, mounted to the test material, or scanned over the test material to generate two-dimensional images of the material properties. Magnetic field or eddy current based inductive and giant magnetoresistive sensors may be used on magnetizable and/or conducting materials, while capacitive sensors can be used for dielectric materials. Methods are also described for the use of state-sensitive layers to determine the state of materials of interest. These methods allow the weight of articles, such as aircraft, to be determined.
摘要翻译：描述了用于监测应力和其他材料性质的方法。这些方法使用诸如磁导率和电导率之类的有效电性能的测量来推断测试材料的状态，例如应力，温度或过载条件。可以使用可以是单元件传感器或传感器阵列的传感器来周期性地检查安装到测试材料上的选定位置，或者在测试材料上扫描以产生材料性质的二维图像。基于磁场或涡电流的感应和巨磁阻传感器可用于可磁化和/或导电材料，而电容传感器可用于介电材料。还描述了使用状态敏感层来确定感兴趣的材料的状态的方法。这些方法允许确定诸如飞机的物品的重量。

2. 发明申请

US20040004475A1 High throughput absolute flaw imaging 审中-公开
标题翻译：高通量绝对缺陷成像
公开(公告)号：US20040004475A1
公开(公告)日：2004-01-08
申请号：US10419702
申请日：2003-04-18
申请人： JENTEK Sensors, Inc.
发明人： Neil J. Goldfine , Vladimir A. Zilberstein , J. Stephen Cargill , Darrell E. Schlicker , Ian C. Shay , Andrew P. Washabaugh , Vladimir Tsukernik , David C. Grundy , Mark D. Windoloski
IPC分类号： G01N027/90 , G01R033/12
CPC分类号： G01N27/82 , G01N27/902
摘要： Apparatus and methods are described for the improved throughput and increased reliability for inspection of critical surfaces on aircraft engine disks. Eddy current sensor arrays allow two-dimensional images to be generated for detection of cracks in regions with fretting damage. Background variations due to fretting damage and stress variations are also accommodated. These arrays are combined with instrumentation that permits parallel data acquisition for each sensing element and rapid inspection rates. Inflatable support structures behind the sensor array improve sensor durability and reduce fixturing requirements for the inspection.
摘要翻译：描述了用于提高吞吐量和增加对飞机引擎盘上的关键表面的检查的可靠性的装置和方法。涡流传感器阵列允许生成二维图像，以检测具有微动损伤的区域中的裂纹。由于微小的损伤和应力变化引起的背景变化也被应用。这些阵列与允许每个感测元件并行数据采集和快速检测速率的仪器相结合。传感器阵列后面的充气支撑结构可提高传感器的耐用性，并减少检测的固定要求。

3. 发明申请

US20030155914A1 Fluid supports for sensors 有权
标题翻译：用于传感器的流体支架
公开(公告)号：US20030155914A1
公开(公告)日：2003-08-21
申请号：US10348339
申请日：2003-01-21
申请人： JENTEK Sensors, Inc.
发明人： Vladimir Tsukernik , Neil J. Goldfine , Andrew P. Washabaugh , Darrell E. Schlicker , Karen E. Walrath , Eric Hill , Vladimir A. Zilberstein
IPC分类号： G01N027/82 , G01R033/12
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。

4. 发明申请

US20040124834A1 Life extending probe and method 有权
标题翻译：寿命延长探针和方法
公开(公告)号：US20040124834A1
公开(公告)日：2004-07-01
申请号：US10650486
申请日：2003-08-28
申请人： JENTEK Sensors, Inc.
发明人： Neil J. Goldfine , Darrell E. Schlicker , Vladimir Tsukernik , Ian C. Shay , David C. Grundy , Andrew P. Washabaugh
IPC分类号： G01N027/72
CPC分类号： G01N27/82
摘要： Described are methods for pressurizing elastic support structures or balloons in sensor probes used for the inspection of components having areas of limited access. When inflated, the balloons press flexible sensors against the surface of the material under test. When deflated, the balloons permit easier insertion of the probes into the component and reduce the mechanical stresses on the sensors, thereby extending the sensor lifetime. By sequentially partially inserting the sensor into a limited access area from either side of the limited access area and scanning in opposite directions, the entire surface of the test material can be inspected.
摘要翻译：描述了用于对用于检查具有有限进入区域的部件的检测的传感器探针中的弹性支撑结构或气囊加压的方法。充气时，气球将柔性传感器压在被测材料的表面上。当放气时，气囊允许更容易地将探针插入到部件中并降低传感器上的机械应力，从而延长传感器寿命。通过从有限访问区域的任一侧依次将传感器部分地插入到有限访问区域中并且沿相反方向扫描，可以检查测试材料的整个表面。

5. 发明申请

US20040066188A1 Material condition assessment with spatially periodic field sensors 有权
标题翻译：用空间周期场传感器进行材料状况评估
公开(公告)号：US20040066188A1
公开(公告)日：2004-04-08
申请号：US10633905
申请日：2003-08-04
申请人： JENTEK Sensors, Inc.
发明人： Neil J. Goldfine , Darrell E. Schlicker , Karen E. Walrath , Andrew P. Washabaugh , Vladimir A. Zilberstein , Vladimir Tsukernik
IPC分类号： G01N027/90 , G01N027/82
CPC分类号： G01N27/72 , G01B7/24 , G01B7/34 , G01N27/902 , G01R33/12
摘要： Inductive sensors measure the near surface properties of conducting magnetic materials. The sensors generally include parallel winding segments to induce a spatially periodic magnetic field in a material under test. The sensors may provide a directionally dependent measure with measurements made in varying orientations of the sensor with respect to the material property variation directions. The sensors may be thin, conformable sensors that can be mounted on a test material and, for example, monitor crack initiation under the sensor. A second sensor may be left in air to provide a reference measurement, or the temperature of the material under test can be varied to verify the response of the individual sensing elements. Sensors can be mounted to materials under test in order to not modify the environment that is causing the stress being monitored. A sensor may be flexible to conform to the shape of the surface of the material under test and may be mounted in difficult to access locations such as around fasteners of an aircraft. Spatially periodic field eddy current sensors may be scanned across a material to create images of the absolute material property beneath the sensor.
摘要翻译：感应传感器测量导电磁性材料的近表面性质。传感器通常包括平行绕组段，以在被测材料中诱发空间周期性的磁场。传感器可以提供具有方向依赖性的测量，其具有相对于材料特性变化方向在传感器的不同取向上进行的测量。传感器可以是可以安装在测试材料上的薄的，一致的传感器，并且例如监测传感器下的裂纹发生。可以将第二传感器留在空气中以提供参考测量，或者可以改变被测材料的温度以验证各个感测元件的响应。传感器可以安装在被测试材料上，以便不会改变引起应力受监控的环境。传感器可以是柔性的以符合被测材料的表面的形状，并且可以安装在难以进入的位置，例如飞机的紧固件周围。可以跨材料扫描空间周期场涡流传感器，以在传感器下方产生绝对材料属性的图像。

6. 发明申请

US20030173958A1 Applied and residual stress measurements using magnetic field sensors 失效
公开(公告)号：US20030173958A1
公开(公告)日：2003-09-18
申请号：US10351978
申请日：2003-01-24
申请人： JENTEK Sensors, Inc.
发明人： Neil J. Goldfine , Vladimir A. Zilberstein , James M. Fisher , David C. Grundy , Darrell E. Schlicker , Vladimir Tsukernik , Robert J. Lyons , Ian C. Shay , Andrew P. Washabaugh
IPC分类号： G01N027/72 , G01N027/90 , G01R033/18 , G01R033/12
CPC分类号： G01N27/904 , G01L5/0047
摘要： Methods are described for the use of conformable eddy-current sensors and sensor arrays for characterizing residual stresses and applied loads in materials. In addition, for magnetizable materials such as steels, these methods can be used to determine carbide content and to inspect for grinding burn damage. The sensor arrays can be mounted inside or scanned across the inner surface of test articles and hollow fasteners to monitor stress distributions. A technique for placing eddy-current coils around magnetizable fasteners for load distribution monitoring is also disclosed.

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