公开(公告)号：US4651093A

公开(公告)日：1987-03-17

申请号：US577149

申请日：1984-02-06

申请人： Jean-Marie Detriche ,  Didier Houche ,  Laurent Gachet

发明人： Jean-Marie Detriche ,  Didier Houche ,  Laurent Gachet

IPC分类号： G01N27/90 ,  G01N27/87 ,  G01R33/12

CPC分类号： G01N27/9046 ,  G01N27/904

摘要： The invention relates to a multiple coil eddy current probe equipped with a coil balancing device. This probe comprises several coils forming an eddy current probe supplying in each case one signal. Each coil is regulated to overvoltage by a regulating unit, which acts on the frequency of the high frequency oscillator supplying each coil. Application is to the automatic positioning of a welding torch and to the inspection of the weld.

摘要翻译： 本发明涉及一种配备有线圈平衡装置的多线圈涡流探头。 该探头包括形成涡流探针的多个线圈，每个情况下都提供一个信号。 每个线圈通过调节单元调节为过电压，调节单元作用于提供每个线圈的高频振荡器的频率。 适用于焊枪的自动定位和焊缝的检查。