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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