数字化智能液体汽化热测量系统研制  

Development on the Digital Intelligent Liquid Vaporization Heat Measurement System

作　　者：郭茜[1] 王国余[2] 邱俊峰[1] 

机构地区：[1]江苏大学电气信息工程学院,江苏镇江212013 [2]江苏大学理学院,江苏镇江212013

出　　处：《物理通报》2017年第4期107-110,129,共5页Physics Bulletin

基　　金：江苏大学高等教育教改研究课题,项目编号:2015JGYB043

摘　　要：针对传统的液体汽化热测量实验过程繁琐、测量误差大的不足,设计和制作了一种基于单片机开发的数字化智能液体汽化热测量实验系统.该测量系统以K60单片机为核心,用压力传感器精确测量液体质量,单片机闭环控制可控硅的接入电阻使加热器恒压加热液体,排出的液体蒸气的质量由单片机A/D采集的电压变化量并结合均值滤波实时计算得出,对干扰与误差进行去噪与优化处理.The traditional liquid vaporization heat measurement installation have some deficiencies.Firstly,the complicate installation make experiment difficult to do.Secondly,the error it committed is large.Thus,we design and make a digital intelligent liquid vaporization heat measurement system based on SCM,in order to improve the intelligence and controllability.The system based on K60 SCM use the pressure sensor to measure the mass of liquid.K60 controls the access resistance by closed loop control to keep heater working at constant voltage.Furthermore,the mass of vapor can be calculate in real time,calculated through a variation of voltage gathered by A/D and average filter,which can remove the noise and interference.

关 键 词：汽化热测量 单片机 PID控制 均值滤波 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构] O551.3[自动化与计算机技术—计算机科学与技术]