流体阻断试验是核级阀门功能验证最重要的试验之一,用以检验在反应堆事故工况下核级阀门紧急关闭切断流体的能力,该能力对反应堆安全具有极其重要的意义,其为典型的瞬态流体试验,过程仅持续几秒,对测控系统的精度和实时响应速度要求较高。针对试验的特点,核级阀门流体阻断试验装置测控系统采用NI PXI总线配以高精度、高速度数据采集与控制I/O卡实现,软件平台采用NI LabVIEW 2011系统由72通道AI、4通道AO、128 Fluid Blocking Test is one of the most important tests of nuclear-level valve functional verification to test the ability of nuclear-level valves to shut down fluid shutoff urgently during reactor accident conditions, which is of paramount importance to reactor safety, which is typical Transient fluid test, the process lasted only a few seconds, the precision of the measurement and control system and real-time response speed requirements. According to the characteristics of the experiment, the test and control system of the nuclear-level valve fluid blocking test device is realized by using NI PXI bus with high-precision and high-speed data acquisition and control I / O card. The software platform adopts NI LabVIEW 2011 system and consists of 72 channels of AI, 4 channels AO, 128