变推力发动机高模试验真空压力测量技术研究  

Research on measurement technology of vacuum pressure in altitude simulation test of rocket engine with variable thrust

作　　者：窦双庆[1] 

机构地区：[1]西安航天动力试验技术研究所,陕西西安710100

出　　处：《火箭推进》2013年第3期99-104,共6页Journal of Rocket Propulsion

基　　金：中国航天科技集团公司支撑项目(2009JY08)

摘　　要：变推力发动机高空模拟试验中真空压力是关键参数,对于76 km高空环境试验系统,真空压力测量的准确性是判断发动机能否点火的重要依据。重点介绍了真空压力测量技术在承担76 km高空环境试验中的应用,研究了试验环境下高真空计的分段测量,以及真空计的安装工艺、测量工艺和现场校准技术,实现了76 km真空压力的准确测量。The vacuum pressure is the key parameter in altitude simulation test of liquid rocket engine.As for the testing system of 76 km high altitude environment,the accuracy of vacuum pressure measurement is an important basis for determining if the engine can be ignited.The measurement technology of vacuum pressure used in the high altitude environment test of 76 km is introduced in the paper.The sectionalization measurement methods of vacuum gage in testing environment,installation,measurement process and calibration technology on spot of vacuum gage are introduced in this paper.

关 键 词：高模试验 真空计 真空压力测量 

分 类 号：V416.5[航空宇航科学与技术—航空宇航推进理论与工程]