| Autor: |
Matteo Magnifico, Davide Nicolini, Giulio Simonelli, Lorenzo Serafini, S Alta, Marco Saviozzi, Luca Ceruti |
| Rok vydání: |
2004 |
| Předmět: |
|
| Zdroj: |
40th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit. |
| DOI: |
10.2514/6.2004-3803 |
| Popis: |
This paper presents the results of the first field emission thruster performance characterization test with a flight standard power control unit designed to fulfill the stringent requirements of new scientific drag-free missions. The thruster, a 5-mm slit field emission thruster operated with cesium, was driven in open loop by controlling the bean current. The results exceeded expectations by demonstrating a thruster/electronics transient response better than 5 ms (step thrust 10µN), bandwidth in the order of 400-800Hz along the thrust range (2µN ~150µN), and good tracking of the DC thrust also during switch-on conditions. The measurements confirm the adequacy of the current control strategy adopted for thrust control and in general of the PCU design. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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