The Project

The L-µPPT project is committed to developing and assessing the functionality of a novel PPT technology based on liquid propellant, expected to enable significant improvements over solid Teflon-based PPTs in terms of propellant utilization and impulse bit predictability through a tight control of the mass of propellant injected.

By leveraging state-of-the-art MEMS technologies, the L-µPPT project strives to develop a compelling propulsion technology for microspacecrafts offering the scalability and robustness of conventional PPTs with performances in par with modern electric propulsion systems for large satellites.

One of the challenges of this project is to develop a thrust stand system as tool for measure the small impulse bit expected (uN range) being capable of obtaining individual measurements of individual impulse instead of traditional mean impulse measurement.

The L-µPPT project roadmap bases on a two-step implementation which comprehends the development of a first prototype, followed by the design of a fully functional prototype. Each prototype shall have an associated system specification phase, and subsequent design and development phases for each system subcomponents (thruster, injector, electronics, thrust balance and vacuum stand).

 

3D First Prototype

 

Real First Prototype

 

Thrust Stand in Vacuum Chamber