Study on Impulse Bit Increase by Modification of PPT Configuration
- Paper number
IAC-05-C4.P.02
- Author
Mr. Yukiya Kamishima, Student, Japan
- Year
2005
- Abstract
Pulsed Plasma Thruster (PPT) is one of the electric propulsion devices, and is expected to apply to a propulsion system for small satellite by the following three characteristics; 1) by using solid propellants, PPT has simple structure, lightweight, and high durability, 2) by generating accurate and small pulse-thrust at optional time interval, PPT can control precise total impulse, 3) PPT can operate at low power consumption. In Tokyo Metropolitan Institute of Technology (TMIT), parallel plate electrodes and breech-fed propellant type PPT (PPT-B20) has been researched and developed for small satellite propulsion system. It can generate impulse bit of some tens of micronewton-second with high specific impulse at some watt power consumption. But in recent years, proposed missions for small satellite have been diversified such as formation flying, precise attitude control, and de-orbit. To apply to such various missions, PPT-B20 is expected to increase impulse bit. So, in this study, modification of thruster head configuration was conducted, and the following two types of thruster heads were examined. One type is parallel plate type thruster head, and its propellants are fed from breech and both sides (PPT-BS150). Another type is coaxial type thruster head (PPT-Co). As a result, the both types can generate lager impulse bit than PPT-B20. Especially, in the case of PPT-Co, a significant increase was confirmed, and moreover, a wide range of impulse bit from some micronewton-second to some millinewton-second was achieved by changing only main discharge voltage.
- Abstract document
- Manuscript document
IAC-05-C4.P.02.pdf (🔒 authorized access only).
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