基于C8051F410片上系统微功耗液位变送器的设计  

Based on C8051F410 Piece on The System Design of Low-power Liquid Level Transmitter

作　　者：王影[1] 刘麒[1] 高德辛 于攀[1] 李硕[1] WANG Ying LIU Qi GAO De-xin＊ YU Pan LI Shuo(School of Information and Control Engineering,Jilin Institute of Chemical Technology,Jilin City 132022,China)

机构地区：[1]吉林化工学院信息与控制工程学院,吉林吉林132022

出　　处：《吉林化工学院学报》2017年第7期52-56,61,共6页Journal of Jilin Institute of Chemical Technology

摘　　要：介绍基于C8051F410片上系统设计微功耗液位变送器的方法.利用其内部AD/DA模块,结合外围电路完成电压的采集和4~20 m A的电流变送,通过单片机引脚直接驱动LCD段式液晶,进行当前液位的显示,使用冒泡排序的滤波方法稳定采样、变送值.此系统为微功耗系统,采用24 V供电,工作电流在2 m A以下.本系统有两个量程(0~20 cm、0~50 cm),并给出了两个量程下的实际测量的数据记录,分析了测量误差的原因,给出了相应的改进措施.该系统设计方案对工业仪表的设计有一定的借鉴作用.Based on C8051F410 was introduced based on a chip system design of liquid level-transmitter power consumption method. Using C8051F410＇s internal AD/DA module,combined with peripheral circuit,complete collection of voltage and 4 ~ 20 m A current transmitting,Using MCU pin directly drive sections of LCD,display the current level.By using the method of bubble sort stable sampling value and analog value.This system is the micro power consumption system,Use 24 V DC power supply,the working current under 2 m A.This system has two range（ 0 ~ 20 cm,0 to 50 cm）,and presents measurement data of actual record under the two range,analysis the cause of the error of measurement,presents the corresponding improvement measures.The system design scheme which is some reference to the design of industrial instruments.

关 键 词：片上系统 微功耗 变送器 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]