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ADN基液体推进剂激光诱导等离子体的光谱研究
Authors
余西龙
张少华
王方仪
Publication date
15 March 2020
Publisher
Abstract
ADN(二硝酰胺铵)基单组元液体推进剂是一种新兴的、可替代肼的绿色推进剂,发展非接触式手段、实时分析元素含量对于研究ADN基推力器的燃烧诊断十分重要.通过建立绝对辐射光谱和高分辨率光谱测量系统,优化了实验参数,研究了由ADN-甲醇-水组成推进剂的激光诱导击穿光谱,分析了光谱中元素H, N, O的时间演化特性,基于Boltzmann斜线法和Stark效应法分别得到了激光诱导产生等离子体的电子温度和电子密度的时间演化曲线,推进剂的初始电子温度为68 000 K,电子密度为1.6×10~(19) cm~(-3),利用e指数拟合得到相应的弛豫时间分别为270 ns和90 ns,该实验条件下未发现ADN基推进剂成功点火现象
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Institute Of Mechanics,Chinese Academy of Sciences
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Last time updated on 19/05/2020