摘要: At present it is difficult for the tradition metric equipment to adapt the modernization mass production, a new trace sample device, implements trace liquid automatic adjustment, real-time monitoring and accurate adjustment, using... 展开 At present it is difficult for the tradition metric equipment to adapt the modernization mass production, a new trace sample device, implements trace liquid automatic adjustment, real-time monitoring and accurate adjustment, using PLC technology and touch screen technology, servo motor technology as the core. Device is expounded in detail the mechanical structure, hardware composition, software, and experimental verification. The sample device has simple structure and is maintenance-friendly with touch screen operation and friendly man-machine interface. It can be widely applied in the fields such as medicine, chemical, etc., where the liquid should be added precisely. 收起