论文标题
纳米卫星的低压脉冲等离子体推进器的实验研究
Experimental Study of a Low-Voltage Pulsed Plasma Thruster for Nanosatellites
论文作者
论文摘要
在本文中，设计，构建和测试了同轴脉冲等离子体推进器。该设计证实了PPT在整个排出等离子体的100至200 V的pPT操作下，以10.4 ka的排放电流水平类似于磁动力弧。 PPT阴极用ICCD摄像头在巨大的压力上成像，并且这些照片表明在较高压力下向阴极上的“一尘不染”散射弧附着，以及在较低压力下的常规阴极斑点的出现。阴极侵蚀速率测量支持在较高压力下的“一尘不染”操作结束，在较低压力下的阴极斑点（分别在4 Torr和3.5e-5 Torr时测量了16.194 ug/c和40.785 ug/c的侵蚀速率）。
In this paper, a coaxial pulsed plasma thruster was designed, built, and tested. This design confirmed PPT operation at substantially reduced discharge voltages of 100 to 200 V across the discharge plasma at a discharge current level of 10.4 kA similar to magnetoplasmadynamic arcs. The PPT cathode was imaged with an ICCD camera over a wide range of pressures, and the photos indicated "spotless" diffuse arc attachment to the cathode at higher pressures, and the appearance of conventional cathode spots at lower pressures. Cathode erosion rate measurements support the conclusion of "spotless" operation at higher pressures and the presence of cathode spots at lower pressures (the erosion rates of 16.194 ug/C and 40.785 ug/C were measured at 4 Torr and 3.5e-5 Torr, respectively).
