大量程低成本高精度便携式电子称重系统  

Wide-range Low-cost High Precision Portable Electronic Weighing System

作　　者：雷欧 田文杰[1] 陈福彬[1] LEI Ou;TIAN Wenjie;CHEN Fubin(Research Center of Sensor Technology,Beijing Information Science ＆ Technology University,Beijing 100101,China)

机构地区：[1]北京信息科技大学传感器重点实验室.北京100101

出　　处：《压电与声光》2018年第4期574-577,共4页Piezoelectrics & Acoustooptics

基　　金：北京市自然科学基金重点资助项目(B类 KZ201511232037);北京市教育委员会科技计划基金资助项目(KM201511232022);现代控制技术教育部重点实验室(北京信息科技大学)基金资助项目

摘　　要：大量程的称重系统难以实现便携与高精度,而高精度的称重系统量程较小。该文通过力转换结构及改进的惠斯通电桥,运用快速高分辨信号采集及处理技术,设计了一种兼具高精度、大量程、便携式、低成本等优点的电子称重系统。实测结果表明,设计的电子称重系统称量范围0~8kN,误差<0.1%,阈值及分辨率为0.1kg,可用于科研、建筑工地、牲畜交易等领域。The large scale weighing system is often difficult to achieve portable and high precision,while the high precision weighing system has a smaller measuring range.In this paper,an electronic weighing system with the advantages of high precision,large range, portable and low cost is designed by using the force conversion structure and the improved Wheatstone bridge and the fast and high resolution signal acquisition and processing technology.The measured results show that the weighing range of the designed electronic weighing system is 0-8 kN,the error is less than 0.1%,and the threshold and resolution is 0.1 kg. It can be applied to scientific research,construction sites,livestock trading and other fields.

关 键 词：电子称重 压力传感 大量程 便携式 

分 类 号：TN384[电子电信—物理电子学] TM931[电气工程—电力电子与电力传动]