The water impingement pressure acquisiotion system was designed for the liquid
rocket engine ground testing.The system could perform following functions:the data acquisition,sig—
nal conversion,transient parameter signal regulation,high speed acquisition,realtime data display
and data analyzing and processing.The paper presents the details of the system specificalions,func—
tion and principle of the data acquisition,singal conversion,the development of application software
and the debugging method of intergrated system.The functions implemented,accurance,stabitities
and design of human-machine interface meet the system design requirements.