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    3POD

    Telecommunication & Observation

    Mechanism

    Comat has developed an innovative antenna-pointing mechanism, in collaboration with the French Space Agency (CNES).

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    Tripod
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    3POD

    telecommunications-et-observations

    - Mechanism

    Image 3POD
    Image espace

    CONTEXT

    This equipment is intended for X band telemetry downlink to be flown onboard next generations of Earth Observation satellites. The Tripod orients a Ø220 mm high-gain parabolic X-band antenna.

    Main benefits

    • A unique parallel architecture offering 3 degrees of freedom (Azimuth, Site, Zoom)
    • Excellent agility for antenna-pointing applications
    • Infinite azimuth turns
    • Dual polarization through 2 RF cables, without slip rings
    • Very low jitter thanks to a reduced mobile mass (since the 3 actuators remain stationary on the baseplate)
    • Easy-to-use central hold down & release system
    • ITAR-free
    • Compliant with ECSS standards.

    Key
    features

    Power Consumption

    5 W

    Holding Torque Unpowered

    1.2 N.m

    Step/Revolution

    10.800

    Output Torque

    6 N.m

    Total Assembly Weight

    1.17 kg

    Harmonic Drive Ratio

    30

    Motor Step Angle

    1°

    Holding Torque Powered

    16 N.m

    Output Step Angle

    0.033°

    Max Output Step

    12°/s

    Partenaires

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