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    • 11. 发明申请
    • METHOD AND APPARATUS FOR NON-DESTRUCTIVE TESTING
    • 用于无破坏性测试的方法和设备
    • WO2008090370A2
    • 2008-07-31
    • PCT/GB2008/000288
    • 2008-01-28
    • INNOSPECTION HOLDINGS LIMITEDINNOSPECTION LIMITEDBOENISCH, Andreas
    • BOENISCH, Andreas
    • G01N27/90
    • G01N27/90G01N27/9033G01N27/9046
    • A method and apparatus in which at least two different test phases are performed on a test object, selected from: conventional eddy current testing, partial saturation eddy current testing, and ultrasonic testing. Measurement data sets are obtained from the at least two different test phases, with each measurement data set comprising measurement data corresponding to a plurality of test positions. The data sets are combined in a data processing means and the combined measurement data is processed to evaluate a damage condition of the test object. In a preferred embodiment, all of conventional eddy current testing, partial saturation eddy current testing, and ultrasonic testing are performed. The apparatus may be provided in two or more sub-assemblies, of which one may be an internal test tool and one may be an external tool. Alternatively, the apparatus may be capable of carrying out all three of the test phases.
    • 一种方法和装置,其中对测试对象执行至少两个不同的测试阶段,所述测试阶段选自:常规涡流测试,部分饱和涡流测试和超声测试。 测量数据组从至少两个不同的测试阶段获得,每个测量数据组包括对应于多个测试位置的测量数据。 数据组合在数据处理装置中并且组合的测量数据被处理以评估测试对象的损坏状况。 在优选实施例中,执行所有常规涡流测试,部分饱和涡流测试和超声波测试。 该设备可以以两个或更多个子组件提供,其中一个可以是内部测试工具并且一个可以是外部工具。 或者,该设备可能能够执行全部三个测试阶段。
    • 13. 发明申请
    • PROCEDE ET DISPOSITIF DE CONTROLE PAR COURANTS DE FOUCAULT A FONCTIONS EMISSION/RECEPTION SEPAREES D'UNE PIECE ELECTRIQUEMENT CONDUCTRICE
    • 使用具有独立发射/接收功能的EDDY电流检查电气导电部件的方法和装置
    • WO2008015197A1
    • 2008-02-07
    • PCT/EP2007/057851
    • 2007-07-30
    • COMMISSARIAT A L'ENERGIE ATOMIQUEDECITRE, Jean-Marc
    • DECITRE, Jean-Marc
    • G01N27/90
    • G01N27/9046
    • L'invention concerne un procédé de contrôle par courants de Foucault à fonctions émission/réception séparées d'une pièce électriquement conductrice (13), dans lequel un capteur se déplace au dessus de cette pièce, qui comporte les étapes suivantes : - obtention d'une première courbe de tension complexe aux bornes d'un bobinage de réception (12), - obtention d'au moins une seconde courbe de tension complexe aux bornes d'un bobinage de réception, - détermination d'au moins une distance donnée qui minimise le module de l'écart entre la première courbe et la au moins une seconde courbe, - calcul de la moyenne arithmétique (d) de la au moins une distance donnée, - choix de cette moyenne arithmétique +/- 20 % comme distance entre les deux bobinages d'émission et de réception - détection de la présence éventuelle d'un ou plusieurs défauts dans cette pièce.
    • 本发明涉及一种使用具有单独发射/接收功能的涡流检查的方法,其中传感器在该部分上方移动,导电部分(13)包括以下步骤: - 获得电压的第一复合电压曲线 横跨接收线圈(12)的端子, - 获得用于接收线圈两端的电压的至少一个第二复合电压曲线, - 确定至少一个给定的距离,其使第一曲线和 所述至少一个第二曲线, - 计算所述至少一个给定距离的算术平均值(d), - 选择所述算术平均值+/- 20%作为所述两个发射和接收线圈之间的距离, - 检测可能存在的一个 或更多的缺陷。
    • 15. 发明申请
    • DETECTING FAILURES IN FLEXIBLE MULTISTRAND STEEL STRUCTURES
    • 检测柔性多钢结构中的故障
    • WO2006067524A1
    • 2006-06-29
    • PCT/GB2005/050248
    • 2005-12-14
    • ESR TECHNOLOGY LIMITEDBUTTLE, David JohnDALZELL, William
    • BUTTLE, David JohnDALZELL, William
    • G01N27/83G01N27/90
    • G01N27/9046
    • A flexible elongate structure, such as a flexible riser (10) for connecting oil and gas wells to floating production platforms, comprising at least one layer (20) of steel wires near the surface which extend at least partly along the length of the structure, can be monitored by inducing a magnetic field in the steel wires using an electromagnetic coil, and monitoring the magnetic flux density near the surface of the structure so as to detect if any wires have broken. Measurements are made at two different frequencies, the lower frequency giving an output dependent both on stresses and on the number of adjacent wires in the layer (20) , and the higher frequency giving an output primarily dependent on the number of these wires. By comparing these two measurements a corrected output parameter (P) may be obtained that is indicative only of stress. A break in a wire can be expected to change the stress in that and adjacent wires.
    • 柔性细长结构,例如用于将油井和气井连接到浮动生产平台的柔性提升管(10),包括在表面附近至少部分地沿着结构的长度延伸的至少一层钢线(20) 可以通过使用电磁线圈在钢丝中引起磁场并监测结构表面附近的磁通密度来监测,以便检测是否有任何电线断裂。 测量在两个不同的频率下进行,较低的频率给出的输出取决于应力和层(20)中相邻导线的数量,而较高的频率给出主要取决于这些导线的数量的输出。 通过比较这两个测量,可以获得仅指示应力的校正输出参数(P)。 可以预期导线中的断裂会改变该线和相邻导线的应力。
    • 17. 发明申请
    • METHOD FOR OPERATING AN EDDY CURRENT SENSOR AND EDDY CURRENT SENSOR
    • 操作脊柱传感器和脊柱传感器的方法
    • WO00037881A2
    • 2000-06-29
    • PCT/DE1999/003558
    • 1999-11-06
    • G01B7/06G01B7/00G01N27/72G01N27/90G01B
    • G01B7/10G01N27/72G01N27/9046
    • The invention relates to a method for operating an eddy current sensor (1) comprising a measuring coil (2) and an evaluation circuit (4) for determining material and geometrical parameters of a test object (5) which is arranged at a distance (d) from the measuring coil (2). The impedance of the measuring coil (2) is evaluated while the measuring coil (2) is being supplied by an alternating voltage of a predetermined frequency. The evaluation circuit (4) determines the material and geometrical parameters of the test object (5) on the basis of the impedance of the measuring coil (2). The impedance of the measuring coil (2) is determined with an alternating voltage with a first and then a second frequency. The evaluation circuit (4) calculates the material and geometrical parameters of the test object (5) on the basis of the impedance of the measuring coil (2) with the first and second frequencies. An eddy current sensor which can be advantageously used in conjunction with the inventive method is also disclosed.
    • 一种用于操作涡电流传感器(1),包括一个测量线圈(2)和一个评估电路(4),用于确定测量物体的材料或几何形状参数的方法,(5),其中,所述测量对象(5)在测量线圈的距离(d)( 2)被布置,而测量线圈(2)是由预定频率的交流电压供给的测量线圈(2)的阻抗进行评估,并且其中所述评估电路(4)由于在测量线圈(2)的材料和几何形状的参数的阻抗 测量对象(5),其中,当具有第一频率的交流电压,(2)当具有第二频率的交流电压检测和测量线圈的阻抗,检测测量线圈(2)的阻抗,所述评估电路(4)由于 测量线圈(2)在第一和第二频率下的阻抗,测量物体(5)的材料和几何参数。 此外,描述了涡流传感器(1),其可以有利地与该方法结合使用。
    • 18. 发明申请
    • A METHOD AND A DEVICE FOR DETERMINING HYDRIDE CONTENT
    • 一种用于测定水合物含量的方法和装置
    • WO00034768A1
    • 2000-06-15
    • PCT/SE1999/002209
    • 1999-11-26
    • G01N27/72G01N27/90
    • G01N27/72G01N27/9046
    • The invention concerns a method for determining the hydride content in an electrically conductive substrate (2) of a measurement object which also may comprise one or more layers positioned on the substrate. The method comprises the following steps: generation of a first electromagnetic alternating field in the immediate vicinity of the measurement object, such that the alternating field at least partly penetrates the substrate (2) and in this substrate creates eddy currents which in their turn produce a second electromagnetic alternating field which retroacts on the first; setting of the first alternating field at at least two different frequencies; measurement at said frequences of the combined electromagnetic alternating field which is formed by the interaction of the first and the second alternating fields; and determination of the hybride content in the substrate (2) by using data which have been obtained through said measurement and information about at least some of the electromagnetic properties of the measurement object. The invention also concerns a device for carrying out the method.
    • 本发明涉及一种用于确定测量对象的导电衬底(2)中的氢化物含量的方法,其还可以包括位于衬底上的一个或多个层。 该方法包括以下步骤:在测量对象的紧邻附近产生第一电磁交变场,使得交变场至少部分地穿透衬底(2),并且在该衬底中产生涡流,这又产生涡流 第一电磁交变场; 设置至少两个不同频率的第一交变场; 在由第一和第二交变场的相互作用形成的组合电磁交变场的所述频率处的测量; 以及通过使用通过所述测量获得的数据和关于测量对象的至少一些电磁特性的信息来确定衬底(2)中的杂种含量。 本发明还涉及一种用于执行该方法的装置。
    • 19. 发明申请
    • MAGNETOMETER DETECTION OF FATIGUE DAMAGE IN AIRCRAFT
    • 飞行员疲劳损伤的磁流计检测
    • WO98040732A1
    • 1998-09-17
    • PCT/US1998/005027
    • 1998-03-13
    • G01N27/90
    • G01N27/9046
    • An apparatus and a method of detecting wide spread fatigue damage (WFD) on aircraft using the absolute conductivity of the metal. A meandering winding magnetometer (MWM) having a plurality of parallel spaced linear conductor elements are placed in proximity to the aircraft. An electromagnetic field is imposed on the aircraft and the resulting response is sensed. The response is transformed to determine the conductivity of the aircraft structure. The mapping of the conductivity of the aircraft structure produces an indication where microcracks are located in the structure. These early indications of the density, spatial distribution and spatial orientation, as well as the size, of the microcracks give the user an indication of WFD.
    • 使用金属的绝对电导率检测飞机上的宽扩展疲劳损伤(WFD)的装置和方法。 具有多个平行间隔的线性导体元件的曲折绕组磁力计(MWM)放置在飞行器附近。 对飞机施加电磁场,并且感测到所得到的响应。 转换响应以确定飞机结构的导电性。 飞机结构的电导率的映射产生了微裂纹位于结构中的指示。 密度,空间分布和空间取向的这些早期迹象以及微裂纹的大小给予用户WFD的指示。
    • 20. 发明申请
    • PROCESS AND ARRANGEMENT FOR SELECTIVELY OBTAINING SUITABLE VALUES FOR THE CONTINUOUS LOCALISED MONITORING OF THE SURFACE PARAMETERS
    • 用于选择性OBTAINING合适的尺寸用于连续平稳的方法和系统分辨检查地表参数
    • WO1996010744A1
    • 1996-04-11
    • PCT/DE1994001156
    • 1994-10-01
    • PRO INNOVATIO FORSCHUNGSZENTRUM FÜR HOCHTECHNOLOGIE UND INDUSTRIELLE ANWENDUNG GMBHKÖSTERS, Heiner
    • PRO INNOVATIO FORSCHUNGSZENTRUM FÜR HOCHTECHNOLOGIE UND INDUSTRIELLE ANWENDUNG GMBH
    • G01N27/72
    • G01N27/82G01N27/725G01N27/9046
    • The invention relates to a process for selectively obtaining suitable values for the continuous localised monitoring of the material parameters close to the surface for production control and an arrangement for implementing said process. The process combines the appropriate micromagnetic values like inductance, Barkhausen noise and eddy current losses. This large number of parameters is evaluated after suitable preprocessing by means of a fuzzy logic produced according to the invention in such a way that the user can easily adapt the process to the problems involved without prejudicing the reliability of the process. Moreover, the use of the fuzzy logic makes it possible to distinguish between the individual material properties although there is no closed mathematical model for describing the relationships. The arrangement for implementing the process essentially features two magnetising coils in a Helmholtz-like arrangement combined with a movable sensor coil perpendicular thereto to grid the surface. Said sensor coil is guided at a defined distance from the sample surface and the corresponding signals are taken to the fuzzifier via suitable filters and preamplifiers.
    • 本发明涉及一种方法,用于选择性用于生产和组装用于实现该方法的控制近表面材料参数的连续空间分辨检查获得合适的尺寸。 此过程结合了适当的微磁性大小,如感应,巴克豪森噪音和涡流损耗。 由模糊逻辑,这是比较本发明实现为使得可以进行该方法以由用户在相应的检查问题的一个简单的适应性的装置的相应的前处理后这样大量的参数的评价时,在不损害过程的安全性。 此外,使用模糊逻辑的允许单独的材料特性的区别,尽管封闭的数学模型来描述的关系丢失了。 用于实施该方法的装置的本质特征在于通过在亥姆霍兹状排列,其与竖直布置的组合,以被移动到表面的传感器线圈扫描2个磁化线圈。 该传感器线圈在样品表面限定的距离被引导并提供给fuzzyfier通过合适的过滤器和前置放大器相应的信号。