Planning and development are underway for the propulsion instrumentation necessary for the next AFRL electric propulsion flight project, which includes both a small Hall thruster and a micro-PPT. These instruments characterize the environment induced by the thruster and the associated data constitute part of a 'user's manual' for these thrusters. Several instruments probe the back-flow region of the thruster plume, and the data are intended for comparison with detailed numerical models in this region. Specifically, an ion probe is under development to determine the energy and species distributions, and a Langmuir probe will be employed to characterize the electron density and temperature. Other instruments directly measure the effects of thruster operation on spacecraft thermal control surfaces, optical surfaces, and solar arrays. Specifically, radiometric, photometric, and solar-cell-based sensors are under development. Prototype test data for most sensors should be available, together with details of the instrumentation subsystem and spacecraft interface.


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    Title :

    Propulsion Instruments for Small Hall Thruster Integration


    Contributors:

    Conference:

    27th International Electric Propulsion Conference(IEPC) ; 2001 ; Pasadena, CA, United States


    Publication date :

    2001-10-15


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




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