Proceedings ArticleDOI
Analysis on the effect of stiffness on mass measurement using a relay feedback of velocity
Takeshi Mizuno,Yuji Ishino,Masaya Takasaki +2 more
- pp 2650-2653
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TLDR
In this paper, a relay-feedback mass measurement system that uses a relay with hysteresis and feeds back the velocity of the object has been proposed, and an estimating equation including this effect is derived.Abstract:
This paper treats a relay-feedback mass measurement system that uses a relay with hysteresis and feeds back the velocity of the object. The efficacy of the proposed method has been already confirmed experimentally. In actual measurement, however, a spring-like element must be added for avoiding the drift of the object. The effect of this spring on mass estimation has not been investigated analytically. In this paper, an estimating equation including this effect is derived. The derived equation indicates that the estimated mass is smaller than the actual value when the conventional estimating equation is used. The experiments carried out in the fabricated apparatus support well the validity of the derived estimating equation.read more
Citations
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Journal ArticleDOI
Mass Measurement under Weightless Conditions by Relay Feedback Systems
TL;DR: In this article, the applicability of relay feedback to mass measurement was investigated both theoretically and experimentally, and two mass measurement systems were studied both theoretically, experimentally and empirically: one uses an on-off relay with hysteresis and switches force acting on the object in relation to the velocity of the object.
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
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.
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
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
Journal ArticleDOI
Mass Measurement Using a Dynamic Vibration Absorber under Weightless Conditions
Takeshi Mizuno,Kenji Araki +1 more
TL;DR: In this article, a new type of mass-measurement system under weightless conditions is proposed which uses a dynamic vibration absorber as a measuring device, where an object to be measured is fixed to a rotating table (rotor) at a distance from the rotation axis.
Journal ArticleDOI
Mass Measurement System Using Relay Feedback with Hysteresis
TL;DR: In this paper, the effects of system parameters and disturbances on measurement accuracy were examined experimentally using an on-off relay with hysteresis and switches force acting on the object in relation to its velocity.