Alternating-current magnetic field detection probe applied to inner detection of pipelines

The invention provides an alternating-current magnetic field detection probe applied to inner detection of pipelines. The alternating-current magnetic field detection probe comprises a cylinder and a coil mechanism, wherein the cylinder is provided with a hollow channel; the coil mechanism is annularly arranged outside the cylinder; the coil mechanism is composed of a plurality of coil units; the coil units are uniformly arranged along the circumferential direction of the cylinder; a plurality of sensors are arranged on the outer wall of each coil unit. The alternating-current magnetic field detection probe is capable of detecting the inner walls of the pipelines, and is simple in structure, convenient to operate, high in detection accuracy, long in service life and wide in application range. 本发明提供种用于管道内检测的交流电磁场检测探头，其包括：圆筒，其具有中空通道；线圈机构，其环设于所述圆筒外，所述线圈机构由多个线圈单元组成，多个所述线圈单元沿所述圆筒的圆周方向均匀设置，每个所述线圈单元的外壁上均设置有多个传感器。本发明能够对管道内壁进行检测，结构简单，操作方便，检测精度高，使用寿命长，适用范围广。