A new concept in measurement technique for low-level microgravity accelerations using an instrumented differentially heated flow cell is presented. By using well-matched thermistors and precision resistors, there is virtually no instrument bias and sensitivities better than 0.1 micro-g can easily be achieved. The thermal field is sensitive only to non-zero time average accelerations, so the g-jitter effects are essentially eliminated. This feature allows a very low sample rate to be used so that the data rate requirements are very modest and a real time display is possible without additional processing. The acceleration history of an entire mission can easily be displayed on a few pages.


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    Title :

    High precision flow cell accelerometer for measuring quasi-steady microgravity accelerations


    Contributors:

    Conference:

    SPACE TECHNOLOGY AND APPLICATIONS INTERNATIONAL FORUM - 2000 ; 2000 ; Albuquerque, New Mexico (USA)


    Published in:

    AIP Conference Proceedings ; 504 , 1 ; 599-604


    Publication date :

    2000-01-19


    Size :

    6 pages





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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