Performance Evaluation of Inertial Balance for Measuring Mass in Microgravity

마이크로중력환경에서 사용 가능한 관성저울의 성능평가

  • Received : 2014.07.03
  • Accepted : 2014.09.22
  • Published : 2014.12.01


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.


Microgravity;Inertial Balance;International Space Station;Mass Measurement;Drop-Tower;Load Cell


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