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31. 发明授权

US06134947A Load sensor for measuring engine cylinder pressure and seat occupant weight 失效
标题翻译：用于测量发动机气缸压力和座椅乘员重量的负载传感器
公开(公告)号：US06134947A
公开(公告)日：2000-10-24
申请号：US928051
申请日：1997-09-12
申请人： Hegeon Kwun
发明人： Hegeon Kwun
IPC分类号： G01L1/14 , G01L5/24 , G01L23/14 , G01L1/12 , G01M15/00
CPC分类号： G01L23/14 , G01L1/14 , G01L5/243
摘要： A load sensor for measuring engine cylinder pressure and vehicle seat occupant weight in a nonintrusive manner that is easily adaptable to existing vehicle components and occupancy support structures. The sensor of the invention provides a toroidal-shaped ferromagnetic steel core that defines a hollow space within which an excitation coil and a detection coil are wound. For engine cylinder pressure sensing, this toroidal sensor is placed on a spark plug, much in the nature of a washer, and is clamped between the spark plug and the spark plug seat in the chamber. For seat occupant weight sensing, the sensor is placed under a seat leg around a fastening bolt, again much in the nature of a washer, and is clamped between the bolt and the floor of the vehicle. Changes in the load or force produced by the cylinder pressure or the occupant weight, alters the stress in the steel core of the sensor. These stress changes in turn induce changes in the magnetic properties of the steel core. Non-linear harmonic analysis of the stress induced magnetic property changes is made and derives the cylinder pressure or occupant weight after suitable calibrations. The cylinder pressure measurements can then be used to facilitate an efficient operation of the internal combustion engine through the modification of timing, fuel mixture, etc. The use of the device in conjunction with occupant safety systems would provide a weight value sufficient to characterize the appropriate or inappropriate activation of an air bag system or the like.
摘要翻译：一种用于以非侵入式测量发动机气缸压力和车辆座椅乘员重量的负载传感器，其易于适应现有的车辆部件和占用支撑结构。本发明的传感器提供一种环形铁磁钢芯，其限定了缠绕有励磁线圈和检测线圈的中空空间。对于发动机气缸压力感测，这种环形传感器放置在火花塞上，这在很大程度上是以垫圈为特征的，并被夹在火花塞和腔室中的火花塞座之间。对于座椅乘员体重检测，传感器被放置在紧固螺栓周围的座椅腿下，再次是垫圈的性质，并且被夹紧在车辆的螺栓和地板之间。由气缸压力或乘员重量产生的负载或力的变化改变传感器钢芯中的应力。这些应力变化又导致钢芯磁性的变化。进行应力诱导磁性变化的非线性谐波分析，并在适当的校准后得出气缸压力或乘员重量。然后可以使用气缸压力测量值通过改变定时，燃料混合物等来促进内燃机的有效操作。该装置与乘员安全系统的配合将提供足以表征适当的重量值或气囊系统的不适当的激活等。

32. 发明授权

US5821430A Method and apparatus for conducting in-situ nondestructive tensile load measurements in cables and ropes 失效
标题翻译：用于在电缆和绳索中进行原位非破坏性拉伸载荷测量的方法和装置
公开(公告)号：US5821430A
公开(公告)日：1998-10-13
申请号：US810618
申请日：1997-02-28
申请人： Hegeon Kwun , Keith Bartels , John J. Hanley
发明人： Hegeon Kwun , Keith Bartels , John J. Hanley
IPC分类号： G01L5/10 , G01L1/10
CPC分类号： B66B7/123 , G01L5/10
摘要： An apparatus and method for the non-contact measurement of tensile loading (or tension) in ferromagnetic materials, particularly wire ropes, cables, and strands. The magnetostrictive effect is used to measure wave propagation properties within such materials to determine load forces imposed on the tested material based upon a signature obtained for like materials under like conditions. The apparatus and method contemplate an active measurement application, wherein a transmitting sensor generates an mechanical pulse within a material through the magnetostrictive effect, and a receiving sensor detects reflected mechanical waves within the material by the inverse magnetostrictive effect. Unlike other sensing methods, utilizing the magnetostrictive effect in this way has the advantage of generating and detecting mechanical waves in the tested material without direct physical or acoustical contact. The apparatus and method of the present invention also anticipates the use of a long-term monitoring system that records acquired tensile load measurements for detection of possible structural anomalies and immediate activation of an alarm, or storage and retrieval/analysis at a later time.
摘要翻译：用于非接触测量铁磁材料（特别是钢丝绳，电缆和股线）中的拉伸载荷（或张力）的装置和方法。磁致伸缩效应用于测量这些材料内的波传播特性，以根据在类似条件下为类似材料获得的签名来确定施加在被测材料上的载荷力。该装置和方法考虑了主动测量应用，其中发射传感器通过磁致伸缩效应在材料内产生机械脉冲，并且接收传感器通过反磁致伸缩效应来检测材料内的反射机械波。与其他感测方法不同，以这种方式利用磁致伸缩效应具有在没有直接物理或声学接触的情况下产生和检测被测材料中的机械波的优点。本发明的装置和方法还预期使用长期监测系统，该系统记录所获得的拉伸负荷测量值，用于检测可能的结构异常并立即激活报警器，或在稍后的时间进行存储和检索/分析。

33. 发明授权

US5747696A Method of non-invasively monitoring pressure of a compressed gas in a closed container 失效
标题翻译：在密闭容器中非侵入性地监测压缩气体的压力的方法
公开(公告)号：US5747696A
公开(公告)日：1998-05-05
申请号：US738498
申请日：1996-10-28
申请人： Hegeon Kwun , Michael Allen Piskie , Tony Gioutsos
发明人： Hegeon Kwun , Michael Allen Piskie , Tony Gioutsos
IPC分类号： G01L9/16 , G01L9/10
CPC分类号： G01L9/16 , Y10S73/02
摘要： A method for non-invasively monitoring a pressure of a compressed gas inside a closed container includes: forming a magnetic circuit through a portion of the outside wall of the container; detecting magnetic flux amplitude changes in the magnetic circuit created by a transient stress in the outside wall of the container; producing data representing the magnetic flux amplitude changes; and monitoring pressure changes from a nominal pressure by evaluating the data representing the magnetic flux amplitude changes.
摘要翻译：用于非侵入性地监测密闭容器内的压缩气体的压力的方法包括：通过容器的外壁的一部分形成磁路; 检测由容器的外壁中的瞬态应力产生的磁路中的磁通量振幅变化; 产生代表磁通量幅度变化的数据; 并且通过评估表示磁通量幅度变化的数据来监测来自标称压力的压力变化。

34. 发明授权

US07565252B2 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：US07565252B2
公开(公告)日：2009-07-21
申请号：US11634525
申请日：2006-12-05
申请人： Sang Young Kim , Hegeon Kwun
发明人： Sang Young 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。

35. 发明申请

US20080315872A1 Method and device for long-range torsional guided-wave inspection of piping with a partial excitation and detection around the pipe circumference 有权
标题翻译：管道围绕管道进行部分激励和检测的远程扭转导波检测方法和装置
公开(公告)号：US20080315872A1
公开(公告)日：2008-12-25
申请号：US11823113
申请日：2007-06-25
申请人： Hegeon Kwun , Hirotoshi Matsumoto , James F. Crane
发明人： Hegeon Kwun , Hirotoshi Matsumoto , James F. Crane
IPC分类号： G01N27/82
CPC分类号： G01N27/82 , G01N29/223 , G01N29/2412 , G01N2291/0425 , G01N2291/044 , G01N2291/2634
摘要： Sensor assemblies and methods are described that facilitate the use of a long-range torsional guided-wave inspection system for inspecting pipes, tubes, or other longitudinal cylindrical structures, with a partial excitation and detection around the pipe circumference. The sensor assemblies comprise a plate-type magnetostrictive sensor probe positioned beneath a compressible/expandable bladder and an inverted U-shaped frame that retain and position the sensor probe against the external wall of the pipe under inspection. Preferably, a magnetostrictive strip is positioned in direct contact with the pipe wall over which the plate magnetostrictive sensor probe is positioned. The probe is preferably curved to match the curvature of the external surface of the pipe. A pad may be positioned between the probe and the magnetostrictive strip to improve compliance with irregular pipe surfaces. The frame (and therefore the sensor assembly) is held in place by a belt that encircles the pipe and may be tensioned in order to pull the frame against the pipe, and through the compressive force associated with the bladder, direct the magnetostrictive sensor probe against the surface of the pipe or against the magnetostrictive strip positioned on the surface of the pipe. Methods are described for placement of the magnetostrictive strip and the positioning of the magnetostrictive sensor probe.
摘要翻译：描述了传感器组件和方法，其便于使用用于检查管道，管或其它纵向圆柱形结构的远程扭转导波检查系统，并且围绕管圆周进行部分激励和检测。传感器组件包括定位在可压缩/可膨胀气囊下方的板式磁致伸缩传感器探头和倒置的U形框架，其将传感器探针保持并定位在被检查管道的外壁上。优选地，磁致伸缩条被定位成与板状磁致伸缩传感器探针所在的管壁直接接触。探针优选地弯曲以匹配管的外表面的曲率。垫可以位于探针和磁致伸缩条之间，以改善与不规则管表面的顺应性。框架（因此传感器组件）通过围绕管道的带保持就位，并且可以被张紧以便将框架拉向管道，并且通过与气囊相关联的压缩力将磁致伸缩传感器探针对着管的表面或位于管的表面上的磁致伸缩条。描述了用于磁致伸缩带的放置和磁致伸缩传感器探针的定位的方法。

36. 发明授权

US07131339B2 Measurement of torsional dynamics of rotating shafts using magnetostrictive sensors 有权
标题翻译：使用磁致伸缩传感器测量旋转轴的扭转动力学
公开(公告)号：US07131339B2
公开(公告)日：2006-11-07
申请号：US10417960
申请日：2003-04-17
申请人： Hegeon Kwun , Sang-Young Kim
发明人： Hegeon Kwun , Sang-Young Kim
IPC分类号： G01L3/02
CPC分类号： G01L3/102 , G01L3/105
摘要： A device and method for the non-contact measurement of dynamic torsion in a rotating shaft using magnetostrictive sensors (MsS). The monitoring and detection system have specially configured magnetostrictive signal detectors that include inductive pickup coils, in which signals corresponding to localized shaft torques are induced. The non-contact method for measuring dynamic torques includes fixing a ferromagnetic strip to a ferromagnetic or non-ferromagnetic shaft and inducing a circumferential residual magnetization therein. An MsS in the form of either an encircling coil positioned around the shaft on a cylindrical substrate, or a partially encircling coil positioned on a flexible substrate and wrapped partially about the shaft.
摘要翻译：一种使用磁致伸缩传感器（MsS）在旋转轴中非接触测量动态扭矩的装置和方法。监测和检测系统具有特殊配置的磁致伸缩信号检测器，其包括感应拾取线圈，其中感应对应于局部轴转矩的信号。用于测量动态转矩的非接触方法包括将铁磁条固定到铁磁或非铁磁轴并且在其中引起圆周剩余磁化。形式为围绕圆筒形基板上的轴定位的环绕线圈形式的MsS或位于柔性基板上的部分环绕的线圈并部分围绕轴缠绕的MsS。

37. 发明授权

US07019520B2 Method and system for torsional wave inspection of heat exchanger tubes 有权
标题翻译：换热器管扭转波检测方法及系统
公开(公告)号：US07019520B2
公开(公告)日：2006-03-28
申请号：US10711747
申请日：2004-10-01
申请人： Hegeon Kwun , James F. Crane , Sang-Young Kim
发明人： Hegeon Kwun , James F. Crane , Sang-Young Kim
IPC分类号： G01N27/82 , G01M15/00 , G01M13/00
CPC分类号： G01N27/82
摘要： The invention provides an improved method and device for inspecting heat exchanger tubes from within the tube inside diameter that overcomes the shortcomings of the prior art. It adapts a guided-wave probe approach that makes use of a torsional wave mode instead of a longitudinal wave node disclosed in the prior art. The torsional wave mode has many advantages over the longitudinal wave mode for detecting defects. When energized by suitable instrumentation, the probe is caused to generate a torsional mode signal that is transmitted to the heat exchanger tube from the waveguide tube. When reflected signals from defects in the heat exchanger tube walls are returned to the inspection opening end of the heat exchanger tube, the reflected defect signals are transmitted to the probe waveguide tube for amplification, detection and characterization of the reflected signal.
摘要翻译：本发明提供一种改进的方法和装置，用于从管内径检测热交换器管，克服了现有技术的缺点。它适应了使用扭转波模式而不是现有技术中公开的纵波节点的导波探测方法。扭转波模式比用于检测缺陷的纵波模式具有许多优点。当通过适当的仪器通电时，使探头产生从波导管传递到热交换器管的扭转模式信号。当来自热交换器管壁中的缺陷的反射信号返回到热交换器管的检查开口端时，反射的缺陷信号被传输到探针波导管，用于放大，检测和表征反射信号。

38. 发明申请

US20050182613A1 Simulation of guided wave reflection signals representing defects in conduits 有权
标题翻译：导波管反射信号的仿真，代表管道中的缺陷
公开(公告)号：US20050182613A1
公开(公告)日：2005-08-18
申请号：US10987226
申请日：2004-11-12
申请人： Hegeon Kwun , Sang-Young Kim , Myoung-Seon Choi
发明人： Hegeon Kwun , Sang-Young Kim , Myoung-Seon Choi
IPC分类号： G01N29/04 , G01N29/44 , G01N29/46 , G06F19/00
CPC分类号： G01N29/4472 , G01N29/043 , G01N29/46 , G01N2291/0425 , G01N2291/044
摘要： A method and system for simulating defects in conduits, where the defects are detected using long-range guided-wave inspection techniques. The guided wave interaction with a defect is treated as a one-dimensional problem of plane wave reflection from a boundary of different acoustic impedances. The defect waveform is simulated using an electrical transmission line model and inverse fast Fourier transformation.
摘要翻译：一种用于模拟管道缺陷的方法和系统，其中使用远程导波检测技术检测缺陷。与缺陷的导波相互作用被视为来自不同声阻抗的边界的平面波反射的一维问题。使用电传输线模型和快速傅立叶反变换模拟缺陷波形。

39. 发明申请

US20050104584A1 Method and System for Torsional Wave Inspection of Heat Exchanger Tubes 有权
标题翻译：热交换器扭转波检测方法与系统
公开(公告)号：US20050104584A1
公开(公告)日：2005-05-19
申请号：US10711747
申请日：2004-10-01
申请人： Hegeon Kwun , James Crane , Sang-Young Kim
发明人： Hegeon Kwun , James Crane , Sang-Young Kim
IPC分类号： F28F20060101 , G01N27/82
CPC分类号： G01N27/82
摘要： The invention provides an improved method and device for inspecting heat exchanger tubes from within the tube inside diameter that overcomes the shortcomings of the prior art. It adapts a guided-wave probe approach that makes use of a torsional wave mode instead of a longitudinal wave node disclosed in the prior art. The torsional wave mode has many advantages over the longitudinal wave mode for detecting defects. When energized by suitable instrumentation, the probe is caused to generate a torsional mode signal that is transmitted to the heat exchanger tube from the waveguide tube. When reflected signals from defects in the heat exchanger tube walls are returned to the inspection opening end of the heat exchanger tube, the reflected defect signals are transmitted to the probe waveguide tube for amplification, detection and characterization of the reflected signal.
摘要翻译：本发明提供一种改进的方法和装置，用于从管内径检测热交换器管，克服了现有技术的缺点。它适应了使用扭转波模式而不是现有技术中公开的纵波节点的导波探测方法。扭转波模式比用于检测缺陷的纵波模式具有许多优点。当通过适当的仪器通电时，使探头产生从波导管传递到热交换器管的扭转模式信号。当来自热交换器管壁中的缺陷的反射信号返回到热交换器管的检查开口端时，反射的缺陷信号被传输到探针波导管，用于放大，检测和表征反射信号。

40. 发明授权

US06294912B1 Method and apparatus for nondestructive inspection of plate type ferromagnetic structures using magnetostrictive techniques 有权
标题翻译：使用磁致伸缩技术对板式铁磁结构进行非破坏性检测的方法和装置
公开(公告)号：US06294912B1
公开(公告)日：2001-09-25
申请号：US09519530
申请日：2000-02-25
申请人： Hegeon Kwun
发明人： Hegeon Kwun
IPC分类号： G01N2782
CPC分类号： G01N29/11 , G01N29/2412 , 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 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 threrethrough 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.
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与板式结构或管道结合使用的磁致伸缩传感器，该板式结构或管道在平行于板或管的表面的方向上沿着板条或管道产生导波。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。

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