研究是基于C#.net通风机性能测试及分析系统,采用信号转换电路、高精度变送器、PCI2000总线数据采集卡,能够自动对局部通风机的多个参数同时进行采集、计算、转换、并以最小二乘法绘制全压、轴功率、效率随流量变化的性能拟合曲线。将性能参数保存数据库中,测试结果将随时查阅,并能打印输出性能曲线和测试数据报表。 The research is based on the performance testing and analysis system of C # .net fan. It adopts signal conversion circuit, high precision transmitter and PCI2000 bus data acquisition card to automatically collect, calculate, convert and convert multiple parameters of the local ventilator The least square method is used to draw the curve of the performance of full pressure, shaft power and efficiency with flow rate. Save the performance parameters in the database, test results will be readily available, and can print out the performance curve and test data reports.