A semiautomatic self-leveling lunar gravimeter has been designed for the Apollo 17 mission. This traverse gravimeter, which is completely self-contained and powered by an internal battery, was used to measure gravity at predetermined stops along the route of the Lunar Rover Vehicle. The gravity sensor is a vibrating string accelerometer (VSA) enclosed in a temperature-controlled oven and gimballed leveling assembly. This instrument is capable of resolving gravity differences as small as 0.035 milligal (1 mgal = 0.001 cm/s) on the moon and yet also is able to measure the earth's gravity field of 980,000 milligals. Twenty-two measurements were taken on the moon during the Apollo 17 mission, during which the VSA temperature never varied more than 0.005 C. The flight results indicate an instrument accuracy of better than 2 mgal.


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    Titel :

    Traverse gravimeter experiment


    Beteiligte:
    Buck, S. W. (Autor:in)

    Erscheinungsdatum :

    1973-04-01


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Traverse gravimeter experiment

    BUCK, S. | AIAA | 1975



    Thermal design and testing of the Apollo 17 lunar traverse gravimeter

    VACHON, W. / FAIRBANKS, D. / MARTORANA, R. et al. | AIAA | 1973


    Thermal design and testing of the Apollo 17 lunar traverse gravimeter.

    Vachon, W. A. / Fairbanks, D. R. / Martorana, R. T. et al. | NTRS | 1973


    The gravimeter

    Wenusch, v. | Engineering Index Backfile | 1921