DEVICE FOR INSPECTING THE INTERIOR OF A MATERIAL

    公开(公告)号:EP1798550B1

    公开(公告)日:2018-07-25

    申请号:EP06025795.3

    申请日:2006-12-13

    申请人: Lothgenoten B.V.

    IPC分类号: G01N29/265 G01N27/90

    摘要: The invention relates to a method for inspecting the interior of a material by moving a sensor at a substantially constant distance along a surface of the material. According to a first aspect of the invention, the sensor herein performs a uniform movement along the surface. This movement can be a composite movement, for instance a combination of a rotation movement and a translation movement. According to another aspect of the invention, the sensor comprises an ultrasonic transducer, and a medium which conducts ultrasonic waves well is placed between the sensor and the surface. The readily conductive medium can herein be held immobile on the surface, while the ultrasonic transducer is moved through or along the medium. The invention also relates to a device for performing the above described method.

    EDDY CURRENT PROBE ROTATOR
    7.
    发明公开
    EDDY CURRENT PROBE ROTATOR 审中-公开
    EDDY电流探头旋转器

    公开(公告)号:EP3190406A3

    公开(公告)日:2017-10-04

    申请号:EP17152309.5

    申请日:2014-10-30

    IPC分类号: G01N27/90

    CPC分类号: G01R1/06705 G01N27/902

    摘要: Provided is an inspection apparatus that includes a rotation disk configured to spin about an axis of rotation. The rotation disk includes a probe bushing configured to securely hold a standard eddy current probe a predetermined distance above a surface to be examined by the probe. The rotation disk is further configured to adjustably hold the standard eddy current probe such that the radial offset of the probe from the axis of rotation is set using a radial positioning set screw that is coupled to the rotation disk via a first slotted arm. The predetermined distance is set using a probe height set screw configured to secure the probe within the probe bushing. An outer stationary housing is coupled to the rotation disk such that the rotation disk rotates within the outer stationary housing.

    摘要翻译: 提供了一种检查设备,其包括被配置为围绕旋转轴线旋转的旋转盘。 旋转盘包括探针衬套,该探针衬套构造成将标准涡流探针牢固地保持在探针要检查的表面上方预定距离处。 旋转盘进一步构造成可调节地保持标准涡流探头,使得探头相对于旋转轴线的径向偏移使用经由第一开槽臂耦合到旋转盘的径向定位固定螺钉来设定。 预定距离使用被配置成将探针固定在探针套管内的探针高度设定螺钉来设定。 外部固定壳体联接到旋转盘,使得旋转盘在外部固定外壳内旋转。

    APPARATUS AND METHOD FOR DETERMINING THE INTEGRITY OF A TUBE
    9.
    发明公开
    APPARATUS AND METHOD FOR DETERMINING THE INTEGRITY OF A TUBE 审中-公开
    确定管道完整性的装置和方法

    公开(公告)号:EP3199944A1

    公开(公告)日:2017-08-02

    申请号:EP17153838.2

    申请日:2017-01-30

    IPC分类号: G01N27/90

    摘要: An apparatus (10) for determining the integrity of a tube (12) is provided. The apparatus (10) includes: a body (14) having an extension mechanism and configured to be inserted into the tube (12); and a flexible eddy current sensor (16) including a flexible housing (48) coupled to the body (14) via the extension mechanism, and one or more coils (50) disposed in the flexible housing (48). The flexible housing (48) is selectively extendable via the extension mechanism between a first position and a second position. The one or more coils (50) are farther away from the body (14) when the flexible housing (48) is in the second position than when the flexible housing (48) is in the first position. The one or more coils (50) electrically couple with an interior surface of the tube (12) when the flexible housing (48) is in the second position, and the flexible eddy current sensor (16) is operative to selectively induce electrical currents within the tube (12) via the one or more coils (50).

    摘要翻译: 提供了一种用于确定管(12)的完整性的设备(10)。 该装置(10)包括:主体(14),其具有延伸机构并被构造成插入管(12)中; 和柔性涡流传感器(16),其包括经由延伸机构耦合到主体(14)的柔性外壳(48)以及布置在柔性外壳(48)中的一个或多个线圈(50)。 柔性壳体(48)可选择性地经由延伸机构在第一位置和第二位置之间延伸。 当柔性壳体(48)处于第二位置时,与柔性壳体(48)处于第一位置时相比,一个或多个线圈(50)更远离主体(14)。 当柔性壳体(48)处于第二位置时,一个或多个线圈(50)与管(12)的内表面电耦合,并且柔性涡流传感器(16)可操作以选择性地在 所述管(12)经由所述一个或多个线圈(50)。

    MULTI COIL EDDY CURRENT INSPECTION DEVICE
    10.
    发明授权
    MULTI COIL EDDY CURRENT INSPECTION DEVICE 有权
    多线圈涡流检测装置

    公开(公告)号:EP3101417B1

    公开(公告)日:2017-07-26

    申请号:EP16169759.4

    申请日:2016-05-16

    IPC分类号: G01N27/90

    摘要: An eddy current inspection device which is able to control a sensitivity decrease, and is able to reliably detect a defect. An eddy current inspection device (1) is provided with an orthogonal detection mode which measures an electromotive force signal using a coil pair which is configured by two coils (112) within the first row coil group (R1), a first intersection detection mode which measures the electromotive force signal using the first coil pair which is configured by the two coils (112) within the first row and second row coil groups (R1) and (R2) that are lined up in a direction which intersects with the scanning direction, and a second intersection detection mode which measures the electromotive force signal using the second coil pair which is configured by the two coils (112) within the first row and second coil groups (R1) and (R2) that are lined up in a direction in which a direction which intersects with the scanning direction is on the same side as the direction through which the first coil pair intersects and has a larger coil pair intersection angle than the coil pair intersection angle of the first coil pair. By evaluating the signal strength and the phase angle, a defect can be detected.

    摘要翻译: 能够控制灵敏度降低并且能够可靠地检测缺陷的涡流检查装置。 涡电流检查装置(1)具备正交检测模式,该正交检测模式使用由第一行线圈组(R1)内的两个线圈(112)构成的线圈对来测量电动势信号,第一交叉点检测模式 使用在与扫描方向交叉的方向上排列的第一行和第二行线圈组(R1)和(R2)内的两个线圈(112)构成的第一线圈对来测量电动势信号, 以及第二交点检测模式,其使用第二线圈对测量电动势信号,所述第二线圈对由第一排和第二线圈组(R1)和(R2)内的两个线圈(112)构成,所述第一线圈组和第二线圈组沿着 其中与扫描方向相交的方向与第一线圈对相交的方向位于同一侧,并且具有比线圈对交叉角t更大的线圈对交叉角 他第一个线圈对。 通过评估信号强度和相角,可以检测到缺陷。