虚拟仪器在电磁驱动式微拉伸测试系统的应用

Application of Virtual Instrument in Magnet-coil Force Actuator for Microtensile Test System

电磁驱动式微拉伸装置是评价微构件材料力学性能的有力工具,其中数据的采集、处理和分析是得到材料性能的重要过程。通过A/D采集板(ZTPCI8310)将电流、电压信号传入计算机,然后利用LabView软件中的虚拟仪器模块对逐次采集的信号进行计算,按照预先设定的方案直接自动得到各种曲线和性能参数,如:杨氏模量、抗拉强度等。论述了虚拟仪器Labview采集、处理分析数据的原理及方法。

Magnetcoil force actuator for microtensile test device is a powerful technique for evaluation of microstructures mechanical properties.To get material performance parameters,its datas acqusition,processing and analysis are very necessary.Through A/D sampling card (ZTPCI8310) current and voltage signals are inputted into computer,with the aid of virtual Instrument LabView software and program compiled in advance data are processed and displacementload curve,performance parameters,such as Young modulus,Tensile sterength,can be showed on the virtual oscillograph.The principle of datas acqusition,processing and analysis are described in detail.