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Welcome to Mass Measurement Device panel !!Due to cancellations, our agenda is modified:
Shimada 10+5min introduction, new tech; + two Kim slides
Malengo 10+5min new tech for small mass MMD
Fujii 10+5min new tech for Body MMD
Thornton 25+5min history, performance, and future + Smith SLAMMD contents
Q&A 15min
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*Kazuhito Shimada, M.D., Ph.D.
AsMA 14 May 2013 ChicagoPanel: Mass Measurement in Space
astronaut body mass measurement on the International Space Station (ISS)- current practice and potential
JAXA Michibiki
Yusaku Fujii, Ph.D.
Disclosure Information84th Annual AsMA Scientific Meeting
Kazuhito Shimada, M.D., Ph.D.
I have no financial relationships to disclose.
I will not discuss off-label use and/or investigational use in my presentation.
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MMD2010 symposiumKiryu, Japan
This panel is the second of this kind.
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Expedition 1- first crew stay
1998
International Space Station
2000
official assemblycomplete 2009budget ~2020hardware ~2027
20m
astronauts eat and exercise
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NASA
exercise 1.5 hours every day on the space station
resistive machine bicycling treadmill
Furukawa/JAXA
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NASA
energy balance ?
Onboard Energy Intake
NASA
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practical indication only by body mass
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Scale does not work on the ISS.Then what works?
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mass measurement under microgravity
m1 m2
resonance period centrifugal force Levitation Mass Method
mass-spring system centrifugal force momentum change against a reference mass (Levitation Mass Method ) direct Force and Acceleration measurement (NASA SLAMMD and our Space Scale)
11Nanoracks centrifuge to be launched
JAXA cell biology centrifuge on ISS0.1 ~ 2.0 G
animal centrifuge launch cancelledcentrifuge onboard ISShuman centrifuge failed module load analysis
AGREE team
ISO: uncertainty-standard-combined standard-expanded
repeatability-reproducibility
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metrological terminology
How much precision do we need for body mass ?- amount of food- water balance is elusive (temperature, etc.)- 3kg/6 months = 17g/day- common sense? 0.1~0.2 kg
INPUTdrink water ~1500 mLfood water ~1000 mLfood metabolic water ~ 300 mL
OUTPUTbreath water 300 mLnon-droplet perspiration 900 mLstool 100 mLurine ~1500 mL
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Space Shuttle Space Lab BMMD (STS-40/SLS-1) Mir/ISS Russian IM/MO-8 BMMD
Skylab BMMD (SLM-1)
Body Mass Measurement Devices flown
14ISS Human Research Facility SLAMMDNASA photos STS-40/SLS-1
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MO-8 Russian BMMD(records average period)
NASA HRF SLAMMD(one way for a run)
NASA video clips
Space Scale parabolic flight test
15 second-microgravityGulfstream II jet parabola profile
JEM-Pressurized ModuleInternal D = 4.2 mL = 11.2 m
Gulfstream II jet airplaneInternal D = 2.2 mExperiment space L = 6.5 m
H = 175 cm
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Parabolic flight G was found to be too noisy for BMMD (our Space Scale) measurements.
How stable is an astronaut body on the ISS?
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Rubber spring stretched to 6m. Smooth translation on ISS was verified. (NASA video)
Motion picture analysis of astronaut body movement on the ISS.
Linear artificial gravityThornton Space Drop Tower
COL 6.9m
N2 4.3 m
JPM 11 m
~20 m
square hatch1.27 m
Moon 1/6 G? 19
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Thanks for your attention.
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Yama photo