一种基于双附加电极与 Einzel 透镜的电喷雾推力器羽流角静电控制方法 Electrostatic Plume-Angle Control for Electrospray Thrusters Using Dual Guard Electrodes and an Einzel Lens
- For large electrospray plume divergence and low angular efficiency, Einzel-lens electrostatic field modeling was supported. Simulations of decoupled extraction and confinement potentials analyzed how auxiliary-electrode voltage gradients affect radial deflection, showing feasibility of compressing divergence from 20° to within 12° via potential tuning and providing baseline simulation data for autonomous thrust-vector control.
This patent targets large plume divergence, unstable emission, high voltage demand, and lack of active control in conventional electrospray thrusters, proposing electrostatic plume-angle control with dual auxiliary electrodes and an Einzel lens. Extraction and confinement are decoupled; the Einzel field converges the beam—typically cutting divergence by over 50% and operating voltage by about 20%—while enabling active angle control for two mainstream emitter types and high-precision orbit tasks on microsatellites.