多维力传感器的动态标定研究

Research of Dynamic Calibrating System of Multicomponent Dynamometer

提出了一套对六维力传感器经行标定的系统,用于动态载荷情况下六维力传感器动态标定。该系统以lab VIEW为软件系统,以高精度伺服电机为精确动力源,以高精度砝码作为标准质量,通过伺服电机带动标准质量做匀速圆周运动产生标准动态力。配合有限元分析软件PATRAN对设计工装的强度、刚度及固有频率的分析。实现了在特定频率范围内的传感器的精确动态标定。实验结果表明系统对六维力传感器的标定是合理可靠的。

This paper presents a set of calibration of six axis force sensor with dynamic loads. Based on LabVlEW software system, with a high accuracy servo motor as precise power source and high precision weight as the standard quality, the servo motor is used to drive the uniform circular motion generating standard dynamic force of the quality standard. The finite element analysis software PATRAN is used to analyze the tooling design strength, stiffness and natural frequency. The accurate calibration of the dynamic sensor is made within the specified frequency range. The results show that the system calibration of the six axis force sensor is reasonable and reliable.