聚变堆材料氦气扩散系数测试系统设计与实现

Design and implementation of test system for helium diffusion coefficient of material applied in fusion reactor

针对研制出的复合材料是否符合应用于核聚变反应堆实验的要求,设计了基于LabVIEW的自动测试系统。通过模糊控制算法调节气体流量,测试出氦气在反应堆用材料中的扩散系数来评价该材料的性能,以选择更优的材料应用于聚变反应堆中,避免反应器的性能下降,测试时可以对测试进程进行远程监控。介绍了测试系统的结构和测试原理、测控系统框架和软件流程,详述了模糊控制算法如何应用于该系统。实验结果表明,所设计的测试系统能比较准确地测出石墨基体上带涂层的样品的扩散系数。

In order to test the application of the newly developed material in fusion reactor experiment,a test system is designed based on LabVIEW.The performance of this newly developed material can be evaluated through testing the helium diffusion coefficient with fuzzy control algorithm,which is useful to employ the optimal material in the fusion reactor and avoid performance penalties of the fusion reactor.This test process can be remotely monitored during the test.Test system,principle,hardware frameworks and software processes are introduced.The application of fuzzy control algorithm in the test system is focused on.The result shows that the test system can almost accurately measure the helium diffusion coefficient of the coated graphite substrate.