基于ADuC7026的动态称重传感器的设计

Design of Dynamic Weight Sensor Based on ADuC7026

设计了一种基于精密数据转换器ADuC7026的快速动态称重传感器.整个系统采用上、下位机的模式,下位机(传感器)主要完成信号放大、A/D转换、数据采集、数据处理和数据传输;上位机(计算机)通过V isual C++创建一个图形用户界面,此界面用于参数设定和数据接收,上位机和下位机之间采用RS-232通讯协议.在介绍了系统的硬件组成和软件设计后,针对动态称重的特点,提出了一种新的数据处理方法—触发函数,并给出了相应的程序流程图.该系统电路简单、工作稳定、精度高、参数设置灵活.

Based on ADuC7026,an accurate data converter,a fast dynamic weighing sensor is designed.The whole system adopts upper computer and subordinate computer,between which Protocol RS-232 is used.The subordinate computer（sensor） is mainly used to accomplish amplifying signals,A/D conversion,data collection,processing,and transmission.The upper computer（computer） uses Visual C＋＋ to design a graphical user interface,which is used for parameter setting and data receiving.Having introduced the hardware components and software design,a new data processing method-trigger function is proposed,and for the characteristics of dynamic weighing,the corresponding program flow chart is given.Finally,a graphical user interface is introduced simply,which is based on MFC.The system has such advantages： simple circuit,stable working,high accuracy and alignment to set parameter,and thus has a good developing foreground.