基于STC8A8K与HX711的高精度电子秤设计  

Design of High Precision Electronic Scale Based on STC8A8K and HX711

作　　者：张良玉 罗龙 伏钊 Zhang Liang-yu;Luo Long;Fu Zhao

机构地区：[1]贵州电子科技职业学院,贵州贵阳550000

出　　处：《今日自动化》2021年第6期106-107,156,共3页Automation Today

基　　金：贵州省教育厅职业教育科研项目:“高职百万扩招背景下在职人员人才培养实践研究”(GZZJ-Q2020018)。

摘　　要：设计制作以电阻应变片为称重传感器的电子称重装置,所在金属悬臂梁上黏贴应变片作为称重传感器。使用了12 V的锂电池自制充电器,称重装置使用了上电自校准功能,并使用LCD液晶屏进行响应数据的显示,在称重为2.00~500 g之间,称重误差要求小于0.50 g,具有去皮功能,去皮范围不超过50 g,并且可以设置单价(元/g),可计算物品金额并实现金额累加、报警和语音等相应功能。An electronic weighing device with resistance strain gauges as load cells is designed and manufactured,and the strain gauges are pasted on the metal cantilever beam as the load cells.A 12 V lithium battery self-made charger is used,the weighing device uses the power-on self-calibration function,and the LCD screen is used to display the desired data.The weighing error is required to be less than 0.50 g within the weighing range of 2.00-500 g,When the weight is above 50 g,the weighing error is less than 1.00 g,with tare function,the tare range does not exceed 50 g,and the unit price(yuan/gram)can be set,the amount of items can be calculated and the amount of money can be accumulated,alarm and voice,etc.Features.

关 键 词：自制充电器 LCD液晶屏 去皮功能 设置单价 金额累加 

分 类 号：TH715.1[机械工程—测试计量技术及仪器]