A study was conducted evaluating the Temperature and Moisture Acquisition System (TMAS; Orbital Technologies, Madison, WI) and the Specific Heat Sensor (Thermal Logic, Pullman, WA) for root zone moisture level monitoring. Each design used a heat pulse and measured the transient temperature response to determine soil moisture changes. The sensors were placed in a polycarbonate compartment filled with oven-dried 1-2 mm Turface. Data was collected from the dry media, then the media was saturated with water and evaporation was monitored using the sensors and a digital balance. Generally, the TMAS sensors tended to over-estimate, while the Thermal Logic sensors under-estimated changes in soil moisture.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Evaluation of Two Soil Moisture Sensor Designs for Spaceflight Applications


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    International Conference On Environmental Systems ; 2002



    Erscheinungsdatum :

    2002-07-15




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Spaceflight Versus Human Spaceflight

    Barr, S. / International Association for the Advancement of Space Safety | British Library Conference Proceedings | 2013



    Evaluation of Thermoregulation After Spaceflight

    Schneider, S. M. / Williams, W. J. / Greenleaf, J. E. et al. | NTRS | 1999



    Radiation biodosimetry: Applications for spaceflight

    Blakely, W.F. | Online Contents | 2003