The paper deals with some preliminary results of the Mission Profile Life Test planned to conduct a program of long-term test segments of 30-cm diameter thrusters and power processing units under computer control. Thruster performance data and other operational characteristics taken at various times during a test segment are compared and the results are evaluated in light of the life-timing mechanisms. Thruster control algorithms are also presented. The first test segment completed 2700 hr of a planned 4000 hr test with a J-series 30-cm thruster. The last 1600 hr used a functional model power processing unit (PPU) operated in vacuum. The thruster-PPU was controlled by a computer with software developed to control start-ups, throttling, and variety of off-normal conditions.


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    Titel :

    Preliminary results of the mission profile life test of a 30 cm Hg bombardment thruster


    Beteiligte:
    Bechtel, R. T. (Autor:in) / James, E. L. (Autor:in)

    Kongress:

    International Electric Propulsion Conference ; 1979 ; Princeton, NJ


    Erscheinungsdatum :

    01.10.1979


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch