Disturbance of the microgravity environment by experiments

Details Disturbance of the microgravity environment by experiments Disturbance of the microgravity environment by experiments

Jan 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aipc..504..614d&link_type=abstract

SPACE TECHNOLOGY AND APPLICATIONS INTERNATIONAL FORUM - 2000. AIP Conference Proceedings, Volume 504, pp. 614-618 (2000).

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Applications

Spaceborne And Space Research Instruments, Apparatus, And Components, Velocity, Acceleration, And Rotation, Vibration Isolation

Scientific paper

The NASA Headquarters Microgravity Research Division sponsors the Microgravity Research Program with science disciplines of biotechnology, combustion science, fluid physics, fundamental physics, and materials science. Two supporting disciplines are multi-discipline science experiments conducted in a glovebox and microgravity acceleration measurement. Microgravity science experiments are conducted in a variety of ground based and flight facilities, such as, drop towers, parabolic flight aircraft, sounding rockets, the space shuttle, and, in the very near future, the International Space Station. The microgravity acceleration measurement activities allow the scientist to know the low-gravity conditions under which an experiment was conducted. For most microgravity science experiments, the ideal microgravity environment is comprised of zero acceleration; this ``weightless'' condition is difficult if not impossible to achieve with real facilities. An experiment is subject to accelerations from (for example) equipment, atmospheric, crew members, and vehicle motions. Each experiment or type of experiment has a unique set of susceptibilities to acceleration depending on the experiment design and sample materials. Some of the acceleration disturbances experienced during operation of microgravity science experiments has been caused by other experiments. This paper will describe several instances where microgravity science experiments experienced deleterious accelerations caused by other microgravity science experiments. The paper will also describe the microgravity acceleration requirements within the International Space Station Program which are imposed on the payloads as well as the vehicle itself. .

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