航天推进技术研究院主办
CHEN Jun,DING Boshen,DUAN Yan.Design of automatic emergency cut-off program in LH2/LOX engine test[J].Journal of Rocket Propulsion,2016,42(02):69-72.
氢/氧火箭发动机试验自动紧急关机程序设计
- Title:
- Design of automatic emergency cut-off program in LH2/LOX engine test
- 分类号:
- V434-34
- 文献标志码:
- A
- 摘要:
- 在氢/氧火箭发动机试验过程中,对发动机关键参数进行监测,及时发现异常或故障趋势,并快速实施自动紧急关机是非常重要的.本文在Pacific6000数据采集控制系统的基础上,使用VisualC++开发环境对其自带的采集软件PI660进行二次开发,实现高精度自动紧急关机判读功能.在紧急关机程序设计中,定时器的精度直接影响判读的准确性,通过对几种定时器精度的测试和分析,选取“多媒体定时器”用于自动紧急关机程序,并结合Pacif-ic6000数据采集控制系统的特性,综合分析了自动紧急关机程序的响应时间及可靠性.
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