液体火箭发动机热试车数据微机自动采集系统

A MICROCOMPUTER DATA AUTO-ACQUISITION SYSTEM IN LIQUID ROCKET ENGINE FIRING TESTS

介绍了一种采用ＰＣ／ＡＴ总线微机的液体火箭发动机热试车数据自动采集系统。该系统能同时完成模拟和脉冲两类信号的自动采集，采集软件由汇编语言编写，定时采集由计算机内部时钟中断实现，软件设计考虑了不同信号对采样时间的特殊要求。

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.