以火电厂常用热电阻PT100为研究对象,采用泓格I-7033温度采集模块、德国Si KA TP17650M检验仪设计了动态试验系统,通过Visial Basic和DCON Utility软件实现了实验数据的自动采集,完成了PT100热电阻的动态特性试验,并使用MATLAB软件对实...以火电厂常用热电阻PT100为研究对象,采用泓格I-7033温度采集模块、德国Si KA TP17650M检验仪设计了动态试验系统,通过Visial Basic和DCON Utility软件实现了实验数据的自动采集,完成了PT100热电阻的动态特性试验,并使用MATLAB软件对实验数据进行了可视化研究,得出了该类型热电阻在不同电阻丝直径、不同插入深度以及不同被测温度下的数学模型,为该类型热电阻在火电厂安装、检修时提供必要的理论基础与实践指导。展开更多
The developments of aeronautics and astronautics require engines of higher quality. The temperature distribution in combustion engine is highly influenced by the thermal conduct resistance. To predict the temperature ...The developments of aeronautics and astronautics require engines of higher quality. The temperature distribution in combustion engine is highly influenced by the thermal conduct resistance. To predict the temperature field of the hot-end assemblies of combustion engine, the thermal contact resistance must be considered. The object of the study is to propose a model of high application including in conditions of high temperature and high pressure. Up to date, many models and empirical or semi-empirical correlations have been developed, also researchers designed different test equipments according to specific conditions. This paper presents several representative models and test equipments, compares the merits and drawbacks with each other, and gives recommendations for further research.展开更多
文摘以火电厂常用热电阻PT100为研究对象,采用泓格I-7033温度采集模块、德国Si KA TP17650M检验仪设计了动态试验系统,通过Visial Basic和DCON Utility软件实现了实验数据的自动采集,完成了PT100热电阻的动态特性试验,并使用MATLAB软件对实验数据进行了可视化研究,得出了该类型热电阻在不同电阻丝直径、不同插入深度以及不同被测温度下的数学模型,为该类型热电阻在火电厂安装、检修时提供必要的理论基础与实践指导。
文摘The developments of aeronautics and astronautics require engines of higher quality. The temperature distribution in combustion engine is highly influenced by the thermal conduct resistance. To predict the temperature field of the hot-end assemblies of combustion engine, the thermal contact resistance must be considered. The object of the study is to propose a model of high application including in conditions of high temperature and high pressure. Up to date, many models and empirical or semi-empirical correlations have been developed, also researchers designed different test equipments according to specific conditions. This paper presents several representative models and test equipments, compares the merits and drawbacks with each other, and gives recommendations for further research.
