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1.发明公开SYSTEMS AND METHODS FOR DETECTING ANOMALIES IN ELONGATE MEMBERS USING ELECTROMAGNETIC BACK SCATTER 审中-公开系统和方法，用于识别延伸的元件故障使用电磁反向散射
公开(公告)号：EP2396641A1
公开(公告)日：2011-12-21
申请号：EP10729453.0
申请日：2010-01-06
IPC分类号： G01N17/00
CPC分类号： G01N17/006
摘要： An anomaly on an elongate conductive member is detected by causing a source electromagnetic wave to propagate in a first direction along the elongate conductive member such that the source electromagnetic wave passes through the at least one anomaly. The anomaly causes a reflected electromagnetic wave to propagate in a second direction along the elongate conductive member. The second direction is opposite the first direction. The electric field of the reflected electromagnetic wave is sensed. The magnetic field of the reflected electromagnetic wave is sensed. A direction of propagation of the reflected electromagnetic wave is determined based on the electric field of the reflected electromagnetic wave and the magnetic field of the reflected electromagnetic wave.
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2.发明公开SYSTEMS AND METHODS FOR TESTING CONDUCTIVE MEMBERS EMPLOYING ELECTROMAGNETIC BACK SCATTERING 审中-公开系统的方法和测试LEITFÄIGER成员利用电磁反向散射
公开(公告)号：EP1963875A4
公开(公告)日：2014-07-23
申请号：EP06838399
申请日：2006-11-22
发明人： BURNETT GALE D , FROST CHARLES A
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3.发明公开SYSTEMS AND METHODS FOR DETECTING ANOMALIES ON INTERNAL SURFACES OF HOLLOW ELONGATE STRUCTURES USING TIME DOMAIN OR FREQUENCY DOMAIN REFLECTOMETRY 审中-公开系统和检测方法的违章情况ON内表面细长的中空结构的序列号，且FREQ域反射计
公开(公告)号：EP2092353A2
公开(公告)日：2009-08-26
申请号：EP07867587.3
申请日：2007-11-30
IPC分类号： G01R27/04
CPC分类号： G01N22/02 , G01M5/0025 , G01M5/0033 , G01M5/0091
摘要： Systems and methods for detecting anomalies, such as corrosion, on internal surfaces of hollow elongate bodies, such as pipelines. The pipeline is treated as a circular waveguide, and a fast rise time pulse or a spectrum of electromagnetic waves is launched down the waveguide to perform time domain, or equivalent of time domain (e.g., frequency domain), reflectometry. Anomalies in the internal structure of the pipeline cause reflections which can be measured and related to the physical parameters of the pipeline structure and identified to a particular location.
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4.发明公开SYSTEMS AND METHODS FOR TESTING CONDUCTIVE MEMBERS EMPLOYING ELECTROMAGNETIC BACK SCATTERING 审中-公开系统的方法和测试LEITFÄIGER成员利用电磁反向散射
公开(公告)号：EP1963875A2
公开(公告)日：2008-09-03
申请号：EP06838399.1
申请日：2006-11-22
IPC分类号： G01R31/11
摘要： A system or method of analyzing a conductive member for the presence an anomaly. A test source signal is applied to a first test location on the elongate conductive member remote from the corrosion to cause the test source signal to travel along the pipe through the anomaly. At least one test return signal caused by the test source signal traveling through the anomaly is detected. The at least one test return signal for characteristics associated with the anomaly. Optionally, a perturbation may be applied to the elongate conductive member to place the conductive member in a perturbed state in which the electromagnetic characteristics of the conductive member at the anomaly are altered. The test source signal is applied to the first test location when the conductive member is in the perturbed stated.
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公开(公告)号：EP0817974A4
公开(公告)日：1998-04-01
申请号：EP96909714
申请日：1996-03-13
发明人： BURNETT GALE D
摘要： Pulse propagation analysis to ascertain whether an anomaly such as surface corrosion exists on a section of conductive member (22) such as pipe. Anomalies such as surface corrosion result in localized velocity changes of pulses propagating along a conductive member. These localized velocity changes exhibit themselves in changes in waveform, rise and fall time, amplitude, and time delay of a pulse with respect to a fixed time reference. To allow such anomalies to be located, two pulses are generated (28, 30) such that they intersect at intersecting locations along the conductive member. The resulting modified pulses are analyzed (24) for perturbations indicative of localized velocity changes.
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公开(公告)号：EP0817974A1
公开(公告)日：1998-01-14
申请号：EP96909714.0
申请日：1996-03-13
发明人： BURNETT, Gale, D.
摘要： Pulse propagation analysis to ascertain whether an anomaly such as surface corrosion exists on a section of conductive member (22) such as pipe. Anomalies such as surface corrosion result in localized velocity changes of pulses propagating along a conductive member. These localized velocity changes exhibit themselves in changes in waveform, rise and fall time, amplitude, and time delay of a pulse with respect to a fixed time reference. To allow such anomalies to be located, two pulses are generated (28, 30) such that they intersect at intersecting locations along the conductive member. The resulting modified pulses are analyzed (24) for perturbations indicative of localized velocity changes.
摘要翻译： 脉冲传播分析以确定诸如管道之类的导电构件（22）的区段是否存在诸如表面腐蚀之类的异常。 诸如表面腐蚀的异常导致沿导电构件传播的脉冲的局部速度变化。 这些局部速度变化表现为波形，上升和下降时间，幅度和脉冲相对于固定时间基准的时间延迟的变化。 为了允许定位这种异常，产生两个脉冲（28,30），使得它们沿着导电构件在相交位置处相交。 分析所产生的修改脉冲（24）表示局部速度变化的扰动。
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公开(公告)号：EP0885396A4
公开(公告)日：2007-09-26
申请号：EP97907987
申请日：1997-02-27
发明人： KUO JOHN T , BURNETT GALE D
IPC分类号： G01N17/00
CPC分类号： G01N17/00
摘要： A method and system for detecting corrosion on a pipeline (A). An electromagnetic pulse (26) is transmitted into a pipeline (A) to travel as a propagating electromagnetic wave along the pipeline (A) to a receiving station (35). Both the distance traveled from the transmitting (44) and receiving location (35), and also the time interval for such travel are measured. Velocity of the wave is dectected as a means of ascertaining whether corrosion is present. Various embodiments, using both multi-channel (80) and single cables, are used to transmit the detected waves, and the waves are received at a plurality of spaced locations (36) along the length of the pipeline (A). For an insulated pipeline, the signals can be received by a directional antenna, and the pulses can be transmitted into the pipeline by an antenna directly on the pipeline or a magnet electrical contact member.
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8.发明公开
公开(公告)号：EP1629228A2
公开(公告)日：2006-03-01
申请号：EP04751432.8
申请日：2004-05-06
发明人： Burnett, Gale , Frost, Charles A.
IPC分类号： F16L1/00
摘要： A method of determining an anomaly in a pipe system. The pipe system comprises a pipe, insulation around the pipe, and shielding around the insulation. An electrical pulse is applied to a test location on the pipe remote from the anomaly to cause an applied signal to travel along the pipe through the anomaly. At least one reflected signal caused by the applied signal traveling through the anomaly is detected. The at least one reflected signal is analyzed for characteristics associated with the anomaly.
摘要翻译： 确定性采矿的方法，在管道系统中的异常。该管道系统包括管，管周围绝缘，并且屏蔽周围的绝缘。 的电脉冲施加到从所述异常管遥控器上的测试位置处施加的信号，以使通过所述异常沿管道行进。 检测到由所施加的信号通过该异常行驶引起的至少一个反射信号。 该至少一个反射的信号被分析，用于与异常相关联的特性。
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9.发明公开METHOD OF DETECTING CORROSION IN PIPELINES AND THE LIKE BY COMPARATIVE PULSE PROPAGATION ANALYSIS 失效法腐蚀管道中检测O.A. 运用比较分析脉冲传播
公开(公告)号：EP0998678A1
公开(公告)日：2000-05-10
申请号：EP98930074.4
申请日：1998-06-04
发明人： BURNETT, Gale, D.
IPC分类号： G01R29/02
CPC分类号： G01N17/00
摘要： A method of dectecting corrosion on an elongate member (10), such as a pipe (10). Far side and near side electric pulses are transmitted into a magnetically permeable pipe (10) at spaced locations to travel toward one another. These are synchronized to intersect at various locations on the pipe (10). The resulting waveforms are analyzed by combining adjacent waveforms resulting from pulses intersection at spaced locations. Two combined waveforms are analyzed by subtracting one from the other to produce a difference waveform and the difference waveforms are compared to detect corrosion.
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10.发明公开SYSTEMS AND METHODS FOR TESTING CONDUCTIVE MEMBERS EMPLOYING ELECTROMAGNETIC BACK SCATTERING 审中-公开系统的方法和测试使用电磁反向散射的导电部件
公开(公告)号：EP2135063A1
公开(公告)日：2009-12-23
申请号：EP08742356.2
申请日：2008-03-27
摘要： A system or method of analyzing a conductive member for the presence an anomaly. A conductive pipe member is analyzed for the presence an anomaly the electromagnetic properties of which are non¬ linear. The electromagnetic properties of the pipe member at the anomaly are altered by applying a direct current perturbation signal to the pipe member. At least one test source signal is applied to a first test location on the pipe member remote from the anomaly to cause the at least one test source signal to travel along the pipe through the anomaly. At least one test return signal associated with the at least one test source signal traveling through the anomaly is detected. The at least one test return signal is analyzed for characteristics associated with the anomaly.
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