含缺陷高聚物材料热致磁效应测量控制系统设计  

Control System Design for Pyromagnetic Effect Detection in Prefabricated Defects Polymer Materials

作　　者：张永忠[1] 罗迎社[2] 粟建新[3] 陈胜铭[2] 任嘉[1] 

机构地区：[1]中南林业科技大学计算机与信息工程学院,长沙410004 [2]中南林业科技大学流变力学与材料工程研究所,长沙410004 [3]湘潭大学信息工程学院,湖南湘潭411105

出　　处：《计算机测量与控制》2014年第2期406-409,共4页Computer Measurement &Control

基　　金：国家自然科学基金项目(10672191;11072270)

摘　　要：设计实现一套含缺陷高聚物材料在加载过程中多场耦合的集成试验系统,能在试验时对位移、拉伸力、温度、磁场等进行多场同步测量;介绍了系统结构、硬件设计、软件设计方案与原理,对其中的关键技术进行了详细说明;对聚合物PVC板材在恒定拉伸速率下的位移、拉伸力、温度场及磁场等有效数据进行了同步采集,并在数据查看界面展示了试验结果,高聚物材料匀速拉伸时,裂口处温度会急剧升高,裂口附近磁感应强度会发生一定的变化。An integrated experimental system for multi--field coupling detection is presented, which is applied for displacement, tension load, temperature and magnetic field measuring in loading test process of prefabricated defects polymer materials. The structure of system, scheme and principle about its hardware and software design are emphatically introduced, especially for the key technologies used. The sys- tem is effective for synchronized data acquisition such as displacement, tension load, temperature and magnetic field in an experiment where a high polymer Polyvinyl Chloride （PVC） plate sample is undergoing constant tensile load. All test results can be visualized on the software interface of data displaying. Test results show that when the polymer material is under uniform tension, there would be an sharp increase in the temperature and certain change in the magnetic induction at the cracks.

关 键 词：热致磁效应 嵌入式操作系统编程 变速PID控制 

分 类 号：TP29[自动化与计算机技术—检测技术与自动化装置]