介绍了活塞式隔膜泵流量、压力、转速、转矩性能参数的测试和处理方法 ,以及基于 PC机的测试系统硬件组成、系统传感器的标定和抗干扰措施。系统软件采用面向对象语言 Delphi for Windows,应用了虚拟仪器设计思想和模块化设计思想进行编程。实验结果表明 ,该系统可靠性好、结构简单、测试精度高 ,满足国标 GB7784— 87规定的测量精度。 The testing and processing methods of flow, pressure, rotational speed and torque performance parameters of piston diaphragm pump are introduced. The hardware components of the test system based on PC, the calibration of system sensors and the anti-interference measures are introduced. The system software adopts object-oriented language Delphi for Windows, and applies virtual instrument design concept and modular design idea to program. The experimental results show that the system has good reliability, simple structure and high testing accuracy, which meets the measurement accuracy of GB7784-87.