超流氦获取实验液位数据采集与测试系统研究  

Study on the data acquisition system of superfluid helium obtaining experiment

作　　者：陈煜[1] 鲁雪生[2] 顾安忠[2] 

机构地区：[1]上海工程技术大学机械工程学院,上海201620 [2]上海交通大学制冷与低温工程研究所,上海200230

出　　处：《低温与超导》2009年第4期22-25,共4页Cryogenics and Superconductivity

基　　金：上海市重点学科建设项目(P1401);上海工程技术大学博士启动基金资助项目(校启08-6);上海交通大学上海市科委重大项目(03DZ14014)资助

摘　　要：针对超流氦获取与传输实验设计的数据采集系统由控制柜、工控机、显示器三部分组成。使用板卡PCI-1620对工控机的串口进行扩展,使系统能够同时采集8个RS232信号。其中液位信息是非常重要的物性参数,针对获取与传输实验液氦杜瓦设计定制的超导液位计,能够与整个测控系统一起完成液位信息的采集、转换和记录。Based on the characteristics and the performance of the superfluid helium obtaining and transferring system, a data acquisition system was set up in order to collect, test, record, and store experimental information. The data acquisition system was composed of control easing, host computer, and indicator. PCI - 1620 was used to extend the series pert of the host computer, therefore the host computer could collect eight signals of RS232 at same time. Liquid level is a very important physical parameter which could be collected, transformed and recorded by the super conducted level sensor and data acquisition system.

关 键 词：超流氦 杜瓦 液位 数据采集 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置] TP274[自动化与计算机技术—控制科学与工程]