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    Augmented RIGS (1974)
    In:  CASI
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    Publication Date: 2019-07-13
    Description: The results of the Phase 2 Resonant Infrasonic Gauging System (RIGS) development program are presented. The program consisted of design, fabrication, and testing of an "augmented" RIGS concept. The RIGS is a gauging system capable of measuring propellant quantities in zero-g as well as under accelerated conditions. Except for hydrogen, it can be used to gauge virtually any propellant in liquid form, including cryogenics. The gage consists of a sensor unit which is attached to the propellant tank and an electronic control unit which may be positioned separately from the sensor. The control unit receives signals from the sensor as well as the propellant temperature measurement and the ullage gas pressure, and computes the propellant quantity in the tank.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-CR-120212
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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