提出了一种超低速加载液压支架立柱试验台测控系统,以高精度位移传感器作为反馈元件,构建计算机闭环控制系统,液压系统中采用两级比例伺服阀进行流量调节控制。阐述了超低速加载控制系统硬件、软件与仿真设计。实际应用表明,最低加载速度可达1 mm/min,解决了目前国内液压支架立柱试验台无法按照GB 25974.2标准进行2 mm/min加载的状况。 A test and control system of hydraulic column test rig with ultra-low speed loading was put forward. The high-precision displacement sensor was used as the feedback element to build a computer closed-loop control system. The two-stage proportional servo valve was used in the hydraulic system to control the flow. Describes the hardware, software and simulation design of ultra-low speed loading control system. Practical application shows that the minimum loading speed of up to 1 mm / min, to solve the current domestic hydraulic support column test rig can not be in accordance with the GB 25974.2 standard 2 mm / min load situation.