基于单片机高精度电子天平设计  

Design of high precision electronic balance based on MCU

作　　者：王仲夏[1] 马万国 张涛[1] 

机构地区：[1]河海大学文天学院,安徽马鞍山243000

出　　处：《电子测试》2017年第5期25-26,17,共3页Electronic Test

基　　金：2016年河海大学文天学院大学生创新创业训练项目;2017年度安徽高校自然科学研究项目;项目编号KJ2017A896

摘　　要：本系统是以单片机为核心,设计带有通讯和U盘存储功能的高精度电子天平。数据采集部分采用高精度电阻式应变片压力传感器,数据处理部分采用了24位A/D转换芯片HX711。该天平电路简单,寿命长,应用范围广,可以应用于商场、家庭等场所,成为人们日常生活中不可少的必需品。并且此次电子天平的设计了带有通讯和U盘存储功能,更是向部分实验人员提供了一个很好选择。本次设计采用新型电阻式应变片压力传感器、高精度AD、STC12C5A60S2单片机设计实现,具有测量精度高、低成本,易携带等特点。The system is based on single-chip microcomputer, designed with communication and U disk storage function of high-precision electronic balance. The data acquisition part uses the high precision resistance strain gauge pressure sensor, and the data processing part uses the 24 bit A/D conversion chip HX711. The utility model has the advantages of simple circuit, long service life and wide application range, and can be used in places such as shopping malls, families, etc.. And the design of the electronic balance with communication and U disk storage function, but also to some of the laboratory staff to provide a good choice？ This design uses the new resistance strain gauge pressure sensor, the high precision AD, the STC12C5A60S2 monolithic integrated circuit design realization, has the measuring accuracy high, low cost, easy to carry and so on the characteristic？

关 键 词：单片机 传感器 A/D转换芯片 高精度 U盘存储 

分 类 号：TH715.116[机械工程—测试计量技术及仪器] TP368.12[机械工程—仪器科学与技术]