Thrust stand for pulsed plasma thrusters
Thrust stand for pulsed plasma thrusters
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DOI：
10.1063/1.1148097
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发表时间：
1997-05
影响因子：
1.6
通讯作者：
T. Haag
中科院分区：
文献类型：
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作者：
T. Haag
设计并制造了一个扭转型推力台，用于测试脉冲等离子体推进器在单次发射和重复工作模式下的性能。使用这个支架，每个脉冲的动量被严格地确定为推力支架挠度、弹簧刚度和固有频率的函数。不需要经验修正。用摆动冲击摆验证了该方法的准确性。推力架与摆锤之间的动量传递数据在1%以内一致。在初始校准之后，该平台被用于测试林肯实验卫星（LES-8/9）推进器。LES-8/9系统的质量约为7.5千克，标称推力重量比为8.0×10−6。总共测量了34个单次推力脉冲。每个脉冲的平均脉冲位为266 μN s，略低于该器件先前报道的300 μN s。重复脉冲测量与普通稳态推力测量类似。
A torsional-type thrust stand has been designed and built to test pulsed plasma thrusters in both single shot and repetitive operating modes. Using this stand, momentum per pulse is determined strictly as a function of thrust stand deflection, spring stiffness, and natural frequency. No empirical corrections are required. The accuracy of the method was verified using a swinging impact pendulum. Momentum transfer data between the thrust stand and the pendulum were consistent to within 1%. Following initial calibrations, the stand was used to test a Lincoln experimental satellite (LES-8/9) thruster. The LES-8/9 system had a mass of approximately 7.5 kg, with a nominal thrust to weight ratio of 8.0×10−6. A total of 34 single shot thruster pulses was individually measured. The average impulse bit per pulse was 266 μN s, which was slightly less than the value of 300 μN s published in previous reports on this device. Repetitive pulse measurements were performed similar to ordinary steady-state thrust measuremen...