碩士生: 潘均祐
畢業年月: 2019年1月
論文名稱: 真空陰極電弧推進器之研發、設計與測試 / The Development, Design and Demonstration of Vacuum Cathode Arc Thruster (VAT)
中文摘要:
本論文從設計、製作與實測開發適用於微衛星的真空陰極電弧推進器（VAT）。陰極兼作推進劑，不需額外進料系統，並以塗覆於陰極表面的微小點誘導電漿，以縮減尺寸與重量；採用電感儲能的「無觸發」方式產生脈衝電漿，顯著降低輸入功率，並以電池取代電源供應器以簡化能量處理單元。量測估算單脈衝能量為0.266 J，離子流為3.55 A，離子速度為23,150 m/s。理論分析顯示原型可達單發衝量2.3 μN·s、比衝2,360 s、整體效率約10%。
英文摘要:
This thesis develops, designs, and demonstrates a vacuum cathode arc thruster (VAT) for microsatellites. The cathode doubles as propellant, so no feed system is needed, and small coated spots on the cathode surface induce the plasma while reducing size and weight. A trigger-less discharge method with inductor energy storage generates the pulses and sharply cuts input power, and a battery replaces the power supply to simplify the energy processing unit. The energy per pulse is estimated at 0.266 J, the ion current is measured at 3.55 A, and the ion velocity at 23,150 m/s. Theoretical analysis indicates the prototype can reach an impulse bit of 2.3 μN·s, a specific impulse of 2,360 s, and an overall efficiency of about 10%.
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