Space Balance and Space Scale: Mass Measurement Devices (MMDs)
In this paper, mass measurement devices (MMDs) developing by the authors for use in the International Space Station (ISS) are reviewed. First, Space Balance, which is a small mass measurement device (SMMD), is reviewed. In Space Balance, the momentum conservation between two objects, the subject mass and the reference mass, are compared. Then Space Scale, which is a body mass measurement device (BMMD), is reviewed. In Space Scale, a human subject is pulled using rubber string. Force is measured using a force transducer and acceleration is measured using optical interferometer. Both Space Balance and Space Scale have shown high accuracies in the ground experiments.
Yusaku Fuji and Koichi Maru
Y. Fujii et al., "Space Balance and Space Scale: Mass Measurement Devices (MMDs)", Applied Mechanics and Materials, Vol. 36, pp. 31-40, 2010