基于NI的高精度水力机械试验台测试系统设计

Design of a Testing System for High-precision Hydraulic Mechinery Test Stand Based on NI

国家能源中小水电设备重点实验室水力机械试验台数据采集系统采用NI公司的LabVIEW软件和PXI Express硬件的测试方案,再配合一整套的高精度测试传感器和测量仪表,实现高速、高效、高精度和高吞吐量实时在线测量,在试验过程中最大程度上减少测量误差,提高测试精度。并能自动存储、开机自动恢复、显示、绘出实验结果和打印,保证了试验测量精度,提高试验效率。通过试验证明,该系统测量精度高,运行稳定可靠,操作方便,达到国际IEC相关标准。

National EnergyKeyLaboratoryofSmallandMediumSizedHydropowerEquipmentwithhigh-precision hydraulic machinery test stand data acquisition system,adopted NI LabVIEW software and PXI Express hardware testing scheme,and then matched with a set of high accuracy testing sensors and measuring instruments,achieved high speed,high efficiency,high accuracy and high throughput real-time on-line measurement. And which could automatically store,turn on the automatic recovery,display,draw the experimental results and print,to ensure the accuracy of the test,improve the test efficiency. Through the experimental verification,the system has high precision,stable and reliable operation,easy to use,and reaches the international IEC standards.