基于纸介质电容原理的纸张数量计量系统  

The Paper Quantity Measurement System Based on the Principle of Paper Medium Capacitance

作　　者：刘淑荣[1] 赵瑞华 庞思渺 LIU Shu-rong(School of Electrical&Information Engineering,Changchun Institute of Technology,Changchun130012,China)

机构地区：[1]长春工程学院电气与信息学院,长春130012

出　　处：《长春工程学院学报（自然科学版）》2020年第2期36-38,43,共4页Journal of Changchun Institute of Technology：Natural Sciences Edition

摘　　要：针对以往印刷行业中普遍采用的人工点数或者电子磅称重的计数方式的弊端,以单片机为控制核心,利用平板电容极板间距对电容量的影响以及NE555构建振荡电路中电容和频率的对应关系,设计了一种新型的纸张数量计量系统,经测试表明,该系统能够对检测的纸张进行正确计数并实时显示及报警,改善了以往纸张测量技术的弊端,提高了测量速度及精度。In view of the shortcomings of the manual counting or electronic scale weighing method commonly used in the printing industry in the past,in this paper,a single-chip microcomputer is used as the control core,and a new paper quantity measurement system is designed,by using the influence of the distance between plates on the capacitance and the relationship between capacitance and frequency in the oscillation circuit of NE555.The test shows that this system can count the detected paper correctly,display and alarm in real time,improve the disadvantages of the previous paper measurement technology,and improve the measurement speed and accuracy.

关 键 词：纸介质电容传感器 振荡电路 单片机 

分 类 号：TS77[轻工技术与工程—制浆造纸工程] TP368.1[自动化与计算机技术—计算机系统结构]