数字式金属探测定位系统的设计

Design of the Digital Metal Detection and Locating System

针对非接触式寻找目标区域金属物的检测定位系统,使用新型电感数字传感器LDC1000作为检测元件,利用传感器所带线圈产生的交变磁场检测进入磁场范围内的金属物,以加载传感器的遥控小车,进行扫描路径的控制。系统以工作频率为8 MHz的STM32单片机为主控核心接收并处理检测数据,控制直流减速电机带动无线遥控小车进行区域扫描,无线遥控通过SI4432通信模块实现。试验结果表明,系统可以提供高效的金属探测及定位功能,且实现了探测仪的小型化和远距遥控,具有较高的应用价值。

Aiming at the non-contact detection and locating system for the metal object in target area, by adopting the new type of inductive digital sensor LDC1000 as the detecting component, and the alternating magnetic field generated by the coil of sensor to detect the metal object inside the magnetic field. With the remote controlled car of the loading sensor the scanning path is controlled. With STM32 single chip computer as the main control core that is working at 8 MHz, the detection data are received and processed to control DC geared motor, drive the wireless remote controlled car for scanning the target area; the wireless remote control is implemented via SI4432. The result of tests shows that the system can provide high efficient metal detection and locating functions, and realize miniaturization and remote control for the detector, it possesses higher applicable value.