公开(公告)号：US10031108B2

公开(公告)日：2018-07-24

申请号：US14878736

申请日：2015-10-08

Applicant: Exxam Systems, LLC

Inventor： Paul Lott ,  Yuan Ji ,  John R. Bowler

IPC: G01N27/90

CPC classification number: G01N27/904 ,  G01N27/902

Abstract: Apparatuses and methods for inspecting a section of piping are disclosed. In one example embodiment, an apparatus includes first and second excitation coils, a plurality of magnetometers, and a data acquisition system. The first excitation coils are disposed at a first axial location and are energized and the second excitation coils are disposed at a second axial location and are energized. The plurality of magnetometers are disposed at an axial location between the first and second axial locations and are positioned to detect magnetic fields generated by eddy currents induced in the section of piping by the first and second excitation coils. The data acquisition system is operatively connected to receive output data from the plurality of magnetometers.

公开(公告)号：US20160103099A1

公开(公告)日：2016-04-14

申请号：US14878736

申请日：2015-10-08

Applicant: Exxam Systems, LLC

Inventor： Paul Lott ,  Yuan Ji ,  John R. Bowler

IPC: G01N27/90

CPC classification number: G01N27/904 ,  G01N27/902

Abstract: Apparatuses and methods for inspecting a section of piping are disclosed. In one example embodiment, an apparatus includes first and second excitation coils, a plurality of magnetometers, and a data acquisition system. The first excitation coils are disposed at a first axial location and are energized and the second excitation coils are disposed at a second axial location and are energized. The plurality of magnetometers are disposed at an axial location between the first and second axial locations and are positioned to detect magnetic fields generated by eddy currents induced in the section of piping by the first and second excitation coils. The data acquisition system is operatively connected to receive output data from the plurality of magnetometers.

Abstract translation: 公开了用于检查一段管道的装置和方法。 在一个示例性实施例中，装置包括第一和第二激励线圈，多个磁力计和数据采集系统。 第一激励线圈设置在第一轴向位置并且被激励，并且第二激励线圈被布置在第二轴向位置并被通电。 多个磁力计设置在第一和第二轴向位置之间的轴向位置处，并且被定位成检测由第一和第二激励线圈在管道部分中感应的涡流产生的磁场。 数据采集​​系统可操作地连接以从多个磁力计接收输出数据。