基于电容式传感器的储液智能化测量系统  

An intelligent measurement system for saving liquid based on capacitance sensor

作　　者：王艳菊[1] 王喜年[1] 王玉田[2] 

机构地区：[1]河北师范大学电子系 [2]燕山大学电气工程学院,河北秦皇岛066004

出　　处：《微计算机信息》2007年第19期178-180,共3页Control & Automation

基　　金：河北省科技攻关项目(042135128);河北省教育厅科学研究基金资助项目(2004447)

摘　　要：为了实现了液体测量的智能化,提高测量系统的测量精度和可靠性,系统采用两个差压电容式传感器来获得容器内液体的密度和液位高度,减小或消除了密度变化引起的测量误差。两差压传感器的输出通过C/U转换电路及A/D转换后输入单片机进行数据处理,显示容器内液体的密度、液位高度及储量。系统实现了测量数据的自动采集和多参数测量。In order to realize liquor intelligent measurement, to advance the measuring precision and the reliability of the system, two differential pressure sensors are used to obtain the density and liquid height of the liquid in the container, and the error caused by changeable density is improved or eliminated. The output of the sensors is converted by C/U conversion circuit, and by A/D chang- ing, being send to computer. After data processing, the liquor density, height and reserves data are showed. The system can realize the automated data collection and multi- parameter.

关 键 词：双差压法 电容式差压传感器 液位 密度 储量 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]