基于LabVIEW^(TM) 7 Express绘制二元金属相图的虚拟仪器

Lab VIEW^(TM) 7 Express-based virtual instrument for drawing binary phase diagrams

设计开发了基于LabVIEWTM7 Express自动绘制二元金属相图的虚拟仪器系统。实验表明:利用LabVIEW开发绘制相图的虚拟仪器,编程直观高效,仪器面板友好、易操作、功能易扩展;避免了人工数据记录、处理、绘图的烦琐和人为误差,还可利用LabVIEW强大的数据处理功能对实验数据做深层次处理,大大提高实验结果的准确性和重现性。用该虚拟仪器自动绘制的Pb-Sn金属相图,其低共熔点与文献值比较相对误差为-0.219%,结果令人满意。

This paper introduces the Virtual Instrument for drawing the binary mental diagram by using LabVIEW language here. When the VI applies on drawing the phase diagrams, the experiment shows that the VI has the friendly interface, we can control it easily and extend it＇s functions freely. Using the library of VI＇s function,we can dealing with the acquiring data deeply. The VI avoids the boring things and mistakes by human error at the same time it improves the veracity and recurrence greatly. There has been a satisfactory result that the VI was used to draw the binary mental diagram for system of Pb-Sn , the RSD is -0. 219%.