Proceedings ArticleDOI
Mass measurement using a system containing an on-off relay with dead zone
Takeshi Mizuno,M. Takeuchi +1 more
- Vol. 1, Iss: 1, pp 25-25
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In this article, a mass measurement system using the self-excited oscillation of a nonlinear system is developed, which contains an on-off relay with dead zone and switches force acting on the object in relation to the position.Abstract:
Concerns mass measurement under conditions of weightlessness. A mass measurement system using the self-excited oscillation of a nonlinear system is developed. The system contains an on-off relay with dead zone and switches force acting on the object in relation to the position. The mass of the object is determined from the time interval measurement of the on-state and off-state periods. The measurement accuracy is experimentally studied.read more
Citations
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Journal ArticleDOI
Realization of Stable Trajectory in Mass Measurement System Using Relay Feedback of Velocity and Restoring Force Compensation
Takeshi Mizuno,Keisuke Nishizawa,Masaya Takasaki,Yuji Ishino,Masayuki Hara,Daisuke Yamaguchi +5 more
TL;DR: In this paper, a mass measurement system using relay feedback of velocity was developed, where the velocity of the object was fed back through a relay with hysteresis, but the efficacy of the propo...
Proceedings Article
Proposal of Mass Estimation Regardless of Switching Position in a Relay Feedback Mass Measurement System
TL;DR: An estimation formula is derived, which can estimate the mass regardless of switching positions, and the efficacy of the derived formula is confirmed experimentally.
Proceedings Article
Intermediate Control for Stable Trajectory in a Relay-Feedback Mass Measurement System*
TL;DR: An intermediate control is introduced to mass measurement system using relay feedback of velocity to stabilize the trajectory and is analyzed to prove the convergence of the trajectory.
Analysis on the effects of stiffness in mass measurement using relay feedback of displacement
TL;DR: In this paper, a relay-feedback mass measurement system that uses a relay with dead zone and feeds back the displacement of the object has been proposed, however, the object to be measured was guided by a spring for avoiding rotation and the effect of stiffness produced by this spring on mass estimation was not investigated analytically.
References
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Journal ArticleDOI
Mass-measurement under weightless conditions by the frequency-controlled method
TL;DR: It is shown that FCM is an accurate and more desirable mass-measurement method under weightless conditions through the results of the experiment.
Journal ArticleDOI
Balance for Measuring Mass Under Microgravity Conditions
TL;DR: In this article, a method for efficiently and accurately measuring mass under conditions of weightlessness is proposed using the law of conservation of momentum, where the velocities of two different uniform motion states of an object and the reference mass are measured highly accurately using an optical interferometer.
Journal ArticleDOI
Device for mass measurement under zero-gravity conditions.
Vasily A. Sarychev,Victor Vasil’yevich Sazonov,A.S. Zlatorunsky,S.F. Khlopina,A.D. Egorov,V.I. Somov +5 more
TL;DR: The estimates of accuracy of mass measurement by this device are given, and the results of measuring the masses of cosmonauts' bodies on the Salyut 5 and 6 orbital stations are presented.
Journal ArticleDOI
Dynamic Mass-Measurement under Weightless Conditions
Toshiro Ono,Haruo Shimaoka +1 more