基于虚拟仪器的压缩机性能测试系统的研究与实现

摘要

According to the national standard of GB/T3853 - 1998 (displacement compressors acceptance test), automatic test of air compressor performance is researched by using NI Lab VIEW virtual instrument VI) technology. In this test system, the nozzle coefficient choice with strong nonlinear can automatic select by interpolation algorithm. The method principle and calculation flow are emphasized. It shows with testing field running that the method has exact and fast calculation and can be used in performance test of displacement compressors. The test system of displacement compressors realized has virtues of high efficiency, reliable performance and convenience.%依据GB/T3853-1998《容积式压缩机验收试验》的国家标准,采用NI公司的LabVIEW虚拟仪器技术,对空气压缩机性能试验进行了自动测试研究；针对该测试系统中喷嘴系数选择具有强非线性,通过插值算法实现了喷嘴系数的自动选择.主要介绍了自动测试系统的构成及试验流程的计算方法,实际应用表明,该测控系统具有快速、开放性好、精度高的特点,实现了基于LabVIEW虚拟仪器技术在ASME喷嘴法测压缩机性能的智能化高效计算.