公开(公告)号：US6133731A

公开(公告)日：2000-10-17

申请号：US298727

申请日：1999-04-23

申请人： Mordechai Melamud ,  Gabriel Kohn

发明人： Mordechai Melamud ,  Gabriel Kohn

IPC分类号： G01N27/72 ,  G01B7/24 ,  G01N27/80 ,  G01R33/12

CPC分类号： B66B7/123 ,  G01N27/725

摘要： A method and an apparatus are provided for measuring the mechanical properties of ferromagnetic, elongated structures, such as cables, through the measurement of Barkhausen signals. The method comprises creating a magnetic field, that varies as a function of time or of position, and measuring the Barkhausen signals rate as a function of the magnetic field for each section of the structure to be tested. The mechanical properties are determined for each section from the Barkhausen signals relative to it. The apparatus comprises means for generating the variable magnetic field, a plurality of Barkhausen signal sensors distributed along the structure length, and means for comparing the signals relative to each section to be tested.

摘要翻译： 提供了一种方法和装置，用于通过测量巴克豪森信号来测量铁磁性细长结构（如电缆）的机械性能。 该方法包括产生随着时间或位置的变化而变化的磁场，并且测量作为要测试的结构的每个部分的磁场的函数的巴克豪森信号速率。 从Barkhausen信号相对于每个部分确定机械性能。 该装置包括用于产生可变磁场的装置，沿着结构长度分布的多个巴克豪森信号传感器，以及用于比较相对于每个待测试部分的信号的装置。