Experimental Investigation on Basic Prototype of Solid Propellant Impulsive Microthrusters

微型固体短脉冲推力器基型样机试验研究(英文)

A new type of impulsive microthruster and its measurement system were designed for the aim of testing the performance of a basic prototype of solid propellant impulsive microthruster. Two sets of tests were conducted. The tests show that the ignitor and the main charge of the microthruster match well, the dynamic and static capability of the test and measurement meets the test requirement and the result is creditable. The measured technical characteristics of the microthruster are that the ignition delay time is shorter than 0 3?ms, the total impulse is over 3?N·s, the operational time is shorter than 16?ms and the mass ratio of the thruster is 0 216.

对微型固体短脉冲推力器基型样机进行了试验研究 .所进行的两组共 2 1发试验的技术数据表明 :所设计的推力器样机工作正常 ;瞬发点火具与高燃速推进剂的匹配性能良好 ;测试系统的动、静态性能符合测试要求 ;瞬态参数的测量结果可信 .测得的推力器的技术指标为点火延迟短于0 3ms ,总冲大于 3N·s ,平均工作时间短于