【摘要】 针对齿轮流量计动态特性影响电液伺服控制系统的动态响应测试精度的问题,从原理上分析了VC圆柱齿轮流量计的动力学特性、脉冲计数方式对流量计动态特性和精度的影响,提出了平均值法和抛物线法数据重构提高流量计的动态特性和精度,并在电液伺服阀实验台上进行了试验。试验数据证明了齿轮流量计的动态特性在数据重构的作用下可以达到60Hz以上,为齿轮流量计在电液伺服控制系统动态测试环境中作为传感器应用的最高测试频率提供了依据。更多还原

【Abstract】 In view of the importance of the gear flow meter dynamic characteristic on the electro-hydraulic servo-velocity control system, the influence of mechanic dynamic characteristic and impulse counter on precision of flow meter is analyzed. The mean value process and parabolic approximation for improving the precision and dynamic characteristic are proposed. The data taked from tests show that it improved the precision and bandwidth of gear flow meter.更多还原