The micronewton thruster is one of the essential technologies for providing an ultrastable satellite platform for scientific experiments in space. Particularly, space gravitational wave detection requires a microthruster with continuously adjustable thrust, high resolution, low noise, and fast response. To meet these requirements, we designed a two-dimensional (2D) nozzle and manufactured it using micro-electro-mechanical systems (MEMS). Compared to the nozzles machined with conventional methods, the nozzles etched by the MEMS can easily reach a micron size and form arrays to create mutual backups and also provide a way to widen the thrust range by switching the number of openings. Based on a single 2D nozzle, a cold gas microthruster prototype is constructed with nitrogen gas as the propellant. The thrust of the prototype is tested by a pendulum, the range can span 0 156    μ N , the thrust resolution is better than 0.1    μ N , and the thrust noise reaches 0.1    μ N / Hz 1 / 2 at 0.1 Hz. The result demonstrates that the scheme has the potential to be applied to gravitational wave detection missions.


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    Titel :

    Micronewton Cold Gas Thruster Based on Silicon-Etched Two-Dimensional Nozzles


    Beteiligte:
    Hu, Shao Gang (Autor:in) / Zhang, Hao Yuan (Autor:in) / Zhou, Wu (Autor:in) / Xu, Hao (Autor:in) / Li, Qing (Autor:in) / Li, Zhu (Autor:in) / Yang, Shan Qing (Autor:in) / Liu, Jian Ping (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2024-06-28


    Format / Umfang :

    6 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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