This paper describes a setup for thrust measurement in ablative laser propulsion experiments, based on a simple ballistic pendulum associated to an imaging system, which is being assembled at IEAv. A light aluminium pendulum holding samples is placed inside a 100 liters vacuum chamber with two optical windows: the first (in ZnSe) for the laser beam and the second (in fused quartz) for the pendulum visualization. A TEA‐ CO 2 laser beam is focused to the samples providing ablation and transferring linear moment to the pendulum as a whole. A CCD video camera captures the oscillatory movement of the pendulum and the its trajectory is obtained by image processing. By fitting the trajectory of the pendulum to a dumped sinusoidal curve is possible to obtain the amplitude of the movement which is directly related to the momentum transfered to the sample.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Thrust Measurements in Ballistic Pendulum Ablative Laser Propulsion Experiments


    Beteiligte:
    Brazolin, H. (Autor:in) / Rodrigues, N. A. S. (Autor:in) / Minucci, M. A. S. (Autor:in) / Pakhomov, Andrew V. (Herausgeber:in)

    Kongress:

    BEAMED ENERGY PROPULSION: Fifth International Symposium on Beamed Energy Propulsion ; 2007 ; Kailua‐Kona (Hawaii)


    Erschienen in:

    AIP Conference Proceedings ; 997 , 1 ; 143-146


    Erscheinungsdatum :

    28.04.2008


    Format / Umfang :

    4 pages





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Thrust Measurements in Ballistic Pendulum Ablation Laser Propulsion Experiments

    Brazolin, H. / Rodrigues, N.A.S. / Minucci, M.A.S. | British Library Conference Proceedings | 2008


    Ablative Laser Propulsion: Specific Impulse and Thrust Derived from Force Measurements

    Andrew V. Pakhomov / M. Shane Thompson / Wesley Swift et al. | AIAA | 2002



    Ablative Laser Propulsion: A Study of Specific Impulse, Thrust and Efficiency

    Pakhomov, Andrew V. / Thompson, M. Shane / Gregory, Don A. | American Institute of Physics | 2003


    Ablative Laser Propulsion: A Study of Specific Impulse, Thrust, and Efficiency

    Pakhomov, A. V. / Thompson, M. S. / Gregory, D. A. | British Library Conference Proceedings | 2003