2015
DOI: 10.1038/npjmgrav.2015.9
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Observational study: microgravity testing of a phase-change reference on the International Space Station

Abstract: BACKGROUND: Orbital sensors to monitor global climate change during the next decade require low-drift rates for onboard thermometry, which is currently unattainable without on-orbit recalibration. Phase-change materials (PCMs), such as those that make up the ITS-90 standard, are seen as the most reliable references on the ground and could be good candidates for orbital recalibration. Space Dynamics Lab (SDL) has been developing miniaturized phase-change references capable of deployment on an orbital blackbody … Show more

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Cited by 19 publications
(7 citation statements)
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“…This behavior has been noted previously. Topham et al experienced gallium supercooling in their on-orbit International Space Station experiment evaluating the effect (if any) of microgravity on gallium phase changes [33]. In any case, gallium melts were used exclusively for RAVAN radiometer stability measurements; the freezing behavior had no effect.…”
Section: Methodsmentioning
confidence: 99%
“…This behavior has been noted previously. Topham et al experienced gallium supercooling in their on-orbit International Space Station experiment evaluating the effect (if any) of microgravity on gallium phase changes [33]. In any case, gallium melts were used exclusively for RAVAN radiometer stability measurements; the freezing behavior had no effect.…”
Section: Methodsmentioning
confidence: 99%
“…Besides, TEC has the merits of non-noise and high integration [12,13]. There are already extensive applications of TEC in space experiment like biologic sample separation [14]. TEC has also been successfully applied to the modular equipment, such as space telescope infrared camera [15], quartz crystal microbalance [16], membrane evaporator [17], etc.…”
Section: Enlarging Applicable Temperature Range By Thermoelectric Coolermentioning
confidence: 99%
“…To realize such an instrumentation, we present here an Invarbased DFPC refractometer that has been equipped with an automated temperature regulating and assessment system. Similar to what previously has been demonstrated by deployment on the International Space Station (ISS) [7], the latter employs an automated, miniaturized, custom-made fixed-point cell based upon the well-defined melting point of gallium. By the use of a thermocouple working close to zero temperature difference, the temperature of the cavity assembly is constantly assessed with respect to this melting point.…”
Section: Introductionmentioning
confidence: 96%