超导镀膜测量装置远控系统研究

Study of Remote Control System for Superconducting Coating Measuring Device

摘要:

为了测量镀铅样品腔在液氦低温环境下的超导性能,建立了一套超导镀膜测量装置,包括测量平台、氦气制冷机系统、真空系统、加热系统、温度测量系统和网络分析仪等设备。其控制系统基于EPICS分布式设计,设备控制器采用SIMENS 1500系列PLC控制模块,开发环境选择PORTAl V14 SP1,梯形图编写设备控制流程；在IOC控制器上配置PLC设备驱动程序和实时数据库Database,对设备进行控制和数据交互；由CSS生成操作界面供操作人员设置参数和回读状态；历史数据存储采用Archiver Appliance实现,使用CSS的data browser显示趋势和数据查询。通过实验,该控制系统实现了真空低温环境,测量了镀铅膜的超导性能,确定了镀铅溶液配比,较好地满足了工程的实际应用需求。

Abstract:

In order to measure the superconductivity of lead-plated sample chamber in liquid helium cryogenic environment, a set of superconducting coating measuring device was established, including measuring platform, helium refrigerator system, vacuum system, heating system, temperature measuring system and network analyzer. The control system is based on EPICS. The device controller adopts SIMENS 1500 series PLC module. The development environment chooses PORTAl V14 SP1 and ladder diagram to compile the device control flow. The device driver and real-time database are configured on the IOC controller to control and interact with the data. The operation interface is generated by CSS for operators to set parameters and read data back. Archiver Application is used to store historical data, and CSS data browser is used to display trends and data queries. Through the experiment, the control system realizes the vacuum and low temperature environment, measures the superconductivity of the Lead-plating film, determines the proportion of the Lead-plating solution, which satisfies the practical application requirements of the project.