关键词: 数据采集系统;发动机试验;液体推进剂火箭发动机;自动数据处理;微型计算机

Abstract: This paper describes a data auto-acquisition system of PC/AT buscomputer in liquid rocket engine firing tests. This system can be able to deal withboth analog information and frequency inputs, the acqusition software is written inassemble language. The sampling time is provided by internal timer interrupt ofcomputer. The special requirements of different signals for sampling periods aretaken in account of the software design.

Key words: Data acquisition system;Engine test;Liquid Propellant rocket enging;Automatic data processing;Microcomputer