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http://dx.doi.org/10.3795/KSME-A.2014.38.12.1395

Performance Evaluation of Inertial Balance for Measuring Mass in Microgravity  

Jang, Hyun-Jin (Space Science Research Team, Korea Aerospace Research Institute (KARI))
Lee, Joo-Hee (Space Science Research Team, Korea Aerospace Research Institute (KARI))
Choi, Jae-Hyuk (School of Marine System Engineering, Korea Marine and Ocean Univ.)
Park, Seul-Hyun (Dept. of Mechanical Systems Engineering, Chosun Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.38, no.12, 2014 , pp. 1395-1401 More about this Journal
Abstract
In an effort to develop and implement an inertial balance with high performance, the response characteristics of a load cell, which are some of the critical parameters for optimal system design, were evaluated using a sample object of approximately 100 g under microgravity conditions. To this end, a 15-m drop-tower was used to produce microgravity conditions, and the response characteristics of the load cell were investigated in terms of the variations in the magnitude of the deceleration of the sample object, noting that the mass of a living animal should be determined in microgravity. An analysis of the ratio of the inertial forces clearly demonstrated that the average velocity of a load cell plate should be higher than 0.5 m/s to meet the design requirements.
Keywords
Microgravity; Inertial Balance; International Space Station; Mass Measurement; Drop-Tower; Load Cell;
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