针对墙体内金属管、PVC管、通电线路的探测问题,选择了电容传感器、电磁涡流传感器、金属线圈传感器三种传感器并设计了相应的信号调理电路来对被测物体进行检测;另外还采用了安装正交激光测距仪的方案来获取传感器的位置信息。同时,为了完成对多路信息进行采集任务,设计了一套集中式数据采集系统来对测量的数据进行高效、实时地采集;最后,根据采集到的数据用文中设计的成像算法来进行成像。 In order to detect the metal pipe, PVC pipe and power line in the wall, three kinds of sensors such as capacitive sensor, electromagnetic eddy current sensor and metal coil sensor are selected and the corresponding signal conditioning circuit is designed to detect the measured object. In addition, The installation of orthogonal laser rangefinder program to obtain the location of the sensor information. At the same time, in order to accomplish the task of collecting multi-channel information, a centralized data acquisition system was designed to collect the measured data efficiently and in real time. Finally, the imaging algorithm was designed based on the collected data.