本仪器是利用电磁感应原理进行探伤的,主要用来检验管材中的缺陷(如裂缝、气孔、夹杂物等等)。本仪器能进行自动化的高速检验。因此对于管材生产厂来说是一种新的、有效的检验设备。工作原理被检工件在通过探测线圈的交变磁场时,沿着工件截面的圆周方向上产生了涡流。工件有缺陷的部分会影响涡流的大小和分布情况,亦影响了信号出现的时间,将在测量线圈上出现的信号用电子仪器加以放 The instrument is based on the principle of electromagnetic induction flaw detection, mainly used to test the pipe defects (such as cracks, pores, inclusions, etc.). The instrument can be automated high-speed inspection. Therefore, it is a new and effective inspection equipment for pipe manufacturers. Working principle When the workpiece under inspection passes through the alternating magnetic field of the detecting coil, eddy current is generated along the circumferential direction of the cross section of the workpiece. Defective parts of the workpiece will affect the size and distribution of eddy currents, but also affect the signal appearance time, the signal appears on the measuring coil with electronic equipment to be placed