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41. 发明授权

US5767766A Apparatus and method for monitoring vehicular impacts using magnetostrictive sensors 失效
标题翻译：使用磁致伸缩传感器监测车辆撞击的装置和方法
公开(公告)号：US5767766A
公开(公告)日：1998-06-16
申请号：US667442
申请日：1996-06-21
申请人： Hegeon Kwun
发明人： Hegeon Kwun
IPC分类号： A62C37/36 , B60R21/01 , B60Q1/00
CPC分类号： B60R21/0136
摘要： The present invention provides an apparatus and method for monitoring vehicular impacts using magnetostrictive sensors. The apparatus includes at least one and sometimes a plurality of magnetostrictive sensors positioned about a motor vehicle at locations appropriate for detecting and measuring stress waves in the structure of the vehicle caused by a vehicular collision or crash. Signals from the magnetostrictive sensors are collected and analyzed in a signal processing system that identifies a severe crash condition and commands a restraint trigger control system to activate one of a number of vehicle occupant restraint systems. The magnetostrictive sensors are structurally simple and mounted to integral elements of the vehicle by adhesive or mechanical attachment. Use of such magnetostrictive sensors in place of more conventional sensors (e.g. accelerometers) provides the opportunity to recognize and react to impact conditions within a significantly reduced time-frame.
摘要翻译：本发明提供一种使用磁致伸缩传感器监测车辆撞击的装置和方法。该装置包括至少一个有时多个磁致伸缩传感器，其围绕机动车辆定位在适于检测和测量由车辆碰撞或碰撞引起的车辆结构中的应力波的位置。来自磁致伸缩传感器的信号在识别严重碰撞状况的信号处理系统中被收集和分析，并且命令约束触发控制系统激活多个车辆乘员约束系统中的一个。磁致伸缩传感器结构简单，通过粘合剂或机械附件安装到车辆的整体元件上。使用这种磁致伸缩传感器代替更传统的传感器（例如，加速度计）提供了在显着缩短的时间范围内识别和响应冲击条件的机会。

42. 发明授权

US09176108B2 Method and device for measuring corrosion metal loss 有权
标题翻译：测量腐蚀金属损失的方法和装置
公开(公告)号：US09176108B2
公开(公告)日：2015-11-03
申请号：US13558733
申请日：2012-07-26
申请人： Hegeon Kwun , Ronald H. Peterson
发明人： Hegeon Kwun , Ronald H. Peterson
IPC分类号： G01N27/72 , G01N27/82 , G01N33/38 , G01N29/11 , G01N29/24 , G01N17/04
CPC分类号： G01N33/383 , G01N17/04 , G01N29/11 , G01N29/2412 , G01N29/2437 , G01N2291/0258
摘要： A method and system for detecting corrosion metal loss. One may provide a guided wave probe that includes an electromechanical device and a corrosion probe. This may be followed by measuring a baseline guided wave attenuation value of the corrosion probe with no corrosion. One may then periodically measure the guided wave attenuation of the corrosion probe and detect an increase in guided wave attenuation values and identify metal corrosion associated with the increase in guided wave attenuation values. This may then be followed by estimating the corrosion metal loss of the metallic component.
摘要翻译：一种检测腐蚀金属损失的方法和系统。可以提供包括机电装置和腐蚀探针的导波探头。这之后可以测量腐蚀探针的基线导波衰减值，而不会腐蚀。然后可以周期性地测量腐蚀探针的导波衰减，并检测导波衰减值的增加，并识别与导波衰减值增加相关的金属腐蚀。然后可以估计金属组分的腐蚀金属损失。

43. 发明申请

US20100052669A1 Flexible Plate Magnetostrictive Sensor Probe for Guided-Wave Inspection of Structures 有权
标题翻译：用于结构导波检测的柔性板式磁致伸缩传感器探头
公开(公告)号：US20100052669A1
公开(公告)日：2010-03-04
申请号：US12201989
申请日：2008-08-29
申请人： Hegeon Kwun , Albert J. Parvin , Ronald H. Peterson
发明人： Hegeon Kwun , Albert J. Parvin , Ronald H. Peterson
IPC分类号： G01N27/82
CPC分类号： G01N29/2412 , G01N29/043 , G01N2291/0425
摘要： An economical, flexible, magnetostrictive sensor probe for use on planar and/or curved structural surfaces, for guided-wave volumetric inspection of the structure is described. The flexible plate MsS probe includes a flexible strip of magnetostrictive material that is adhered to the base of a generally flat, flexible, conductor coil assembly, preferably with an elastomeric adhesive (such as silicon) or with double sided tape. The conductor coil assembly has a core that is composed of a thin flexible strip of metal, a layer of an elastomeric material (such as rubber), and a thin permanent magnet circuit. The flexible core is surrounded (top, bottom, and on the longitudinal ends) by a flat flexible cable (FFC) that is folded and looped over the layers of the core. The exposed conductors at the ends of the FFC are shifted from each other by one conductor spacing and joined together so that the parallel conductors in the FFC form a flat, flexible, continuous coil. The entire probe assembly may be bent to match the curved contours of the surface of the structure under investigation.
摘要翻译：描述了用于平面和/或弯曲结构表面的经济，灵活，磁致伸缩传感器探头，用于结构的导波体积检查。柔性板MsS探针包括柔性的磁致伸缩材料条，其粘附到大致平坦，柔性的导体线圈组件的基部，优选地具有弹性体粘合剂（例如硅）或双面胶带。导体线圈组件具有由薄的柔性金属条，弹性材料层（例如橡胶）和薄的永磁体电路构成的芯。柔性芯通过折叠并环绕在芯层上的扁平柔性电缆（FFC）包围（顶部，底部和纵向端部）。 FFC端部的暴露的导体彼此间隔一个导体间距并连接在一起，使得FFC中的平行导体形成平坦，柔性，连续的线圈。整个探针组件可以被弯曲以匹配被调查结构的表面的弯曲轮廓。

44. 发明申请

US20070150213A1 Method for automatic differentiation of weld signals from defect signals in long-range guided-wave inspection using phase comparison 有权
标题翻译：使用相位比较在远程导波检测中自动区分焊接信号与缺陷信号的方法
公开(公告)号：US20070150213A1
公开(公告)日：2007-06-28
申请号：US11634525
申请日：2006-12-05
申请人： Sang Kim , Hegeon Kwun
发明人： Sang Kim , Hegeon Kwun
IPC分类号： G06F19/00
CPC分类号： G01N29/075 , G01N29/2412 , G01N29/4454 , G01N2291/262 , G01N2291/267
摘要： A method and associated algorithms for identifying and distinguishing geometric feature signals from defect signals in the NDE of longitudinal structures. The method includes the steps of collecting an interrogation signal (including reflected components) from a longitudinal structure under evaluation and comparing it with a selected reference signal from a known geometric feature maintained in a database. The comparison involves a determination of the signals phase. Same phase signals identify the source as a geometric feature, while opposite phase signals identify the source as a defect. The comparison involves the steps of gating each of the signals and creating an array of correlation values between points on each. The correlation values are analyzed and a determination (based on comparing maximum and minimum correlation values) is made of the signal phases. A reliability factor may be determined by comparison of the correlation values and the maximum and minimum thereof.
摘要翻译：一种用于识别和区分几何特征信号与纵向结构的NDE中的缺陷信号的方法和相关算法。该方法包括以下步骤：从评估中的纵向结构收集询问信号（包括反射分量），并将其与从数据库中维护的已知几何特征中选出的参考信号进行比较。比较涉及信号相位的确定。相同的信号将源标识为几何特征，而相反的相位信号将源识别为缺陷。比较涉及门控每个信号的步骤，并在每个点之间创建一个相关值阵列。分析相关值，并对信号相位进行确定（基于比较最大和最小相关值）。可靠性因子可以通过相关值与其最大值和最小值的比较来确定。

45. 发明授权

US06968727B2 Calibration method and device for long range guided wave inspection of piping 有权
标题翻译：管道远程导波检测的校准方法和装置
公开(公告)号：US06968727B2
公开(公告)日：2005-11-29
申请号：US10425528
申请日：2003-04-29
申请人： Hegeon Kwun , Sang-Young Kim , Glenn M. Light
发明人： Hegeon Kwun , Sang-Young Kim , Glenn M. Light
IPC分类号： G01N29/30 , G01N29/04
CPC分类号： G01N29/07 , G01N29/30 , G01N2291/044 , G01N2291/045 , G01N2291/102
摘要： The present invention is for a simple, reliable and inexpensive method to calibrate a defect signal to determine the size of a defect in a pipe. A first reflected signal is received from the test area of the pipe. After attaching a clamp, a second reflected signal is received from the test area of the pipe. If defects are in the test area, by appropriate calculations using the first reflected signal and the second reflected signal, the size of the defect can be determined.
摘要翻译：本发明是用于校准缺陷信号以确定管道中的缺陷尺寸的简单，可靠和便宜的方法。从管道的测试区域接收第一反射信号。在附接夹具之后，从管道的测试区域接收第二反射信号。如果缺陷在测试区域，则通过使用第一反射信号和第二反射信号的适当计算，可以确定缺陷的尺寸。

46. 发明授权

US06925881B1 Time shift data analysis for long-range guided wave inspection 有权
标题翻译：长程导波检测的时移数据分析
公开(公告)号：US06925881B1
公开(公告)日：2005-08-09
申请号：US10051898
申请日：2002-01-17
申请人： Hegeon Kwun , Sang-Young Kim
发明人： Hegeon Kwun , Sang-Young Kim
IPC分类号： G01N29/07 , G01N29/38 , G01N29/10
CPC分类号： G01N29/07 , G01N29/38 , G01N2291/044 , G01N2291/2634
摘要： A method of analysis long range guided wave data reflected from defects and geometric features such as welds in a structure. The method involves acquiring two sets of data, and time shifting one set of data relative to the other. Data points that match in time after the shifting are considered to represent defects or geometric features in the structure. The result of the method is exclusion of false signal data and automation of data analysis.
摘要翻译：分析从缺陷和几何特征（如结构中的焊缝）反映的远程导波数据的方法。该方法包括获取两组数据，并相对于另一组数据相移一组数据。在移动后的时间匹配的数据点被认为表示结构中的缺陷或几何特征。该方法的结果是排除虚假信号数据和数据分析自动化。

47. 发明授权

US06624628B1 Method and apparatus generating and detecting torsional waves for long range inspection of pipes and tubes 有权
标题翻译：产生和检测扭转波的方法和装置，用于管道和管道的远距离检查
公开(公告)号：US06624628B1
公开(公告)日：2003-09-23
申请号：US09815017
申请日：2001-07-17
申请人： Hegeon Kwun , Sang-Young Kim , Alfred E. Crouch
发明人： Hegeon Kwun , Sang-Young Kim , Alfred E. Crouch
IPC分类号： G01N2782
CPC分类号： G01N29/2412 , G01N29/11 , G01N2291/0421 , G01N2291/0422 , G01N2291/044 , G01N2291/2623 , G01N2291/2632 , G01N2291/2634
摘要： A method and apparatus is shown for implementing magnetostrictive sensor techniques for the nondestructive evaluation of ferromagnetic pipes or tubes. A magnetostrictive sensor generates shear waves and/or torsional waves in ferromagnetic pipes or tubes, which waves travel therethrough in a direction parallel to the longitudinal axis of the pipe. A circumferential magnetization is generated in the ferromagnetic pipe or tube by a DC or low frequency voltage establishing a current along the longitudinal axis and past the magnetostrictive sensor. Reflected shear or torsional waves may represent defects in the pipe or tube.
摘要翻译：示出了用于实现用于铁磁管或管的非破坏性评估的磁致伸缩传感器技术的方法和装置。磁致伸缩传感器在铁磁管或管中产生剪切波和/或扭转波，其中波浪沿着与管的纵向轴线平行的方向穿过其中。在铁磁管或管中通过直流或低频电压产生周向磁化，该电压沿着纵向轴线并经过磁致伸缩传感器。反射剪切或扭转波可能表示管道或管道中的缺陷。

48. 发明授权

US06424150B1 Magnetostrictive sensor rail inspection system 有权
公开(公告)号：US06424150B1
公开(公告)日：2002-07-23
申请号：US09734054
申请日：2000-12-12
申请人： Hegeon Kwun , Glenn M. Light
发明人： Hegeon Kwun , Glenn M. Light
IPC分类号： G01N2912
摘要： A method and apparatus is shown for implementing magnetostrictive sensor techniques for the nondestructive evaluation of railroad rails. The system includes magnetostrictive sensors specifically designed for application in conjunction with railroad rails and trains that generate guided waves in the railroad rails which travel therethrough in a direction parallel to the surface of the railroad rail. Similarly structured sensors are positioned to detect the guided waves (both incident and reflected) and generate signals representative of the characteristics of the guided waves detected that are reflected from anomalies in the structure such as transverse defects. The sensor structure is longitudinal in nature and generates a guided wave having a wavefront parallel to the longitudinal axis of the sensor, and which propagates in a direction perpendicular to the longitudinal axis of the sensor. The generated guided waves propagate in the rail within the path of the propagating wave. The reflected waves from these abnormalities are detected using a magnetostrictive sensor. Shear horizontal waves may also be created by rotating the magnetic bias 90° and used for similar inspection techniques.

49. 发明授权

US06373245B1 Method for inspecting electric resistance welds using magnetostrictive sensors 有权
标题翻译：使用磁致伸缩传感器检查电阻焊缝的方法
公开(公告)号：US06373245B1
公开(公告)日：2002-04-16
申请号：US09666752
申请日：2000-09-21
申请人： Hegeon Kwun , Sang Young Kim
发明人： Hegeon Kwun , Sang Young Kim
IPC分类号： G01N2782
CPC分类号： G01N29/11 , G01N29/223 , G01N29/2412 , G01N2291/0421 , G01N2291/0422 , G01N2291/044 , G01N2291/2623 , G01N2291/2632 , G01N2291/2634 , G01N2291/2636 , G01N2291/2675
摘要： A method and apparatus is shown for implementing magnetostrictive sensor techniques for the nondestructive evaluation of plate type structures such as walls, vessels, enclosures, and the like. The system includes magnetostrictive sensors specifically designed for application in conjunction with plate type structures or pipes that generate guided waves in the plates or pipes which travel therethrough in a direction parallel to the surface of the plate or pipe. Similarly structured sensors are positioned to detect the guided waves (both incident and reflected) and generate signals representative of the characteristics of the guided waves detected that are reflected from anomalies in the structure such as corrosion pits and cracks. The sensor structure is longitudinal in nature and generates a guided wave having a wavefront parallel to the longitudinal axis of the sensor, and which propagates in a direction perpendicular to the longitudinal axis of the sensor. The generated guided waves propagate in the plate within the path of the propagating wave. The reflected waves from these abnormalities are detected using a magnetostrictive sensor. Shear horizontal waves may also be created by rotating the magnetic bias 90° and used for similar inspection techniques. Pipes, which act as curved plates, may also be inspected as well as electric resistance welds therein. In addition, steel sheet butt welds may be inspected with this technique.
摘要翻译：示出了用于实现磁致伸缩传感器技术的方法和装置，用于对诸如墙壁，容器，外壳等的板式结构进行非破坏性评估。该系统包括专门设计用于结合板式结构或管道的磁致伸缩传感器，该板式结构或管道在平行于板或管的表面的方向上在其中穿过的板或管中产生导波。定位相似的结构化传感器以检测导波（入射和反射），并且产生代表被检测到的导波特征的信号，其被反映在诸如腐蚀坑和裂纹的结构中的异常中。传感器结构在本质上是纵向的，并且产生具有平行于传感器的纵向轴线的波前并且沿垂直于传感器的纵向轴线的方向传播的导波。所产生的导波在传播波的路径内在板中传播。使用磁致伸缩传感器检测来自这些异常的反射波。剪切水平波还可以通过将磁偏压旋转90°并用于类似的检查技术来产生。作为弯曲板的管道也可以被检查以及其中的电阻焊缝。此外，可以用这种技术检查钢板对接焊缝。

50. 发明授权

US4711120A Method of wear monitoring using ultrasonic phase comparison 失效
标题翻译：使用超声波相位比较的磨损监测方法
公开(公告)号：US4711120A
公开(公告)日：1987-12-08
申请号：US915382
申请日：1986-10-06
申请人： Hegeon Kwun , Anmol S. Birring , Gurvinder P. Singh , Gary J. Hendrix , David G. Alcazar
发明人： Hegeon Kwun , Anmol S. Birring , Gurvinder P. Singh , Gary J. Hendrix , David G. Alcazar
IPC分类号： G01B17/02 , G01N29/07 , G01M15/00
CPC分类号： G01B17/025 , G01N29/07 , G01N2291/02854
摘要： A method of monitoring the cylinder wall wear using ultrasonic phase comparison techniques is disclosed. The method comprises the steps of introducing ultrasonic waves in a cylinder wall so that the waves travel through the cylinder wall. A change in the traveling time of the ultrasonic waves traveling through the cylinder wall due to cylinder wall wear is determined. The amount of wear of the cylinder wall is calculated by multiplying the velocity of the ultrasonic waves in the cylinder wall by the traveling time change due to cylinder wall wear. The traveling time change due to cylinder wall wear is obtained by determining the actual change in travel time by a phase comparison of the traveling ultrasonic waves and adjusting the actual change in travel time to compensate for any change due to temperature variation of the cylinder wall. With this method, small changes in traveling time on the order of 10.sup.-11 second can be determined so that thickness changes due to wear on the order of 5.times.10.sup.-4 mm are possible.
摘要翻译：公开了使用超声波相位比较技术来监测气缸壁磨损的方法。该方法包括以下步骤：在气缸壁中引入超声波，使得波浪通过气缸壁。确定由于气缸壁磨损而穿过气缸壁的超声波的行进时间的变化。通过将气缸壁中的超声波的速度乘以气缸壁磨损的行进时间变化来计算气缸壁的磨损量。通过行进超声波的相位比较确定行驶时间的实际变化并调整行驶时间的实际变化来补偿由于气缸壁的温度变化引起的任何变化，来获得行车时间的变化。通过这种方法，可以确定10-11秒的行进时间的小的变化，使得由于5×10 -4 mm量级的磨损而导致的厚度变化是可能的。

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