Intermediate Control for Stable Trajectory in a Relay-Feedback Mass Measurement System

Takeshi Mizuno; Keisuke Nishizawa; Yuji Ishino; Masaya Takasaki; Daisuke Yamaguchi

Intermediate Control for Stable Trajectory in a Relay-Feedback Mass Measurement System

Takeshi Mizuno, Keisuke Nishizawa, Yuji Ishino, Masaya Takasaki, Daisuke Yamaguchi

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

An intermediate control is introduced to mass measurement system using relay feedback of velocity to stabilize the trajectory. In the original system, the velocity of the object was fed back through a relay with hysteresis, and the mass of the object was determined by measuring the period of an induced limit cycle. It could determine the mass of the object rather accurately. However, the trajectory of the object easily drifted because only the velocity was fed back and there was no restoring force. To generate restoring force, a spring element was added. Although the drift became smaller, it still occurred. It caused the trajectory of the object to fluctuate. To eliminate such fluctuation, an intermediate control is introduced to stabilize the trajectory. The operation of the intermediate control is analyzed to prove the convergence of the trajectory.

Original language	English
Title of host publication	2019 12th Asian Control Conference, ASCC 2019
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	685-689
Number of pages	5
ISBN (Electronic)	9784888983006
Publication status	Published - Jun 2019
Externally published	Yes
Event	12th Asian Control Conference, ASCC 2019 - Kitakyushu-shi, Japan Duration: Jun 9 2019 → Jun 12 2019

Publication series

Name	2019 12th Asian Control Conference, ASCC 2019

Conference

Conference	12th Asian Control Conference, ASCC 2019
Country	Japan
City	Kitakyushu-shi
Period	6/9/19 → 6/12/19

ASJC Scopus subject areas

Computer Science Applications
Control and Optimization
Mechanical Engineering

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Intermediate Control for Stable Trajectory in a Relay-Feedback Mass Measurement System. / Mizuno, Takeshi; Nishizawa, Keisuke; Ishino, Yuji; Takasaki, Masaya; Yamaguchi, Daisuke.

2019 12th Asian Control Conference, ASCC 2019. Institute of Electrical and Electronics Engineers Inc., 2019. p. 685-689 8765147 (2019 12th Asian Control Conference, ASCC 2019).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Mizuno, T, Nishizawa, K, Ishino, Y, Takasaki, M & Yamaguchi, D 2019, Intermediate Control for Stable Trajectory in a Relay-Feedback Mass Measurement System. in 2019 12th Asian Control Conference, ASCC 2019., 8765147, 2019 12th Asian Control Conference, ASCC 2019, Institute of Electrical and Electronics Engineers Inc., pp. 685-689, 12th Asian Control Conference, ASCC 2019, Kitakyushu-shi, Japan, 6/9/19.

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abstract = "An intermediate control is introduced to mass measurement system using relay feedback of velocity to stabilize the trajectory. In the original system, the velocity of the object was fed back through a relay with hysteresis, and the mass of the object was determined by measuring the period of an induced limit cycle. It could determine the mass of the object rather accurately. However, the trajectory of the object easily drifted because only the velocity was fed back and there was no restoring force. To generate restoring force, a spring element was added. Although the drift became smaller, it still occurred. It caused the trajectory of the object to fluctuate. To eliminate such fluctuation, an intermediate control is introduced to stabilize the trajectory. The operation of the intermediate control is analyzed to prove the convergence of the trajectory.",

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AB - An intermediate control is introduced to mass measurement system using relay feedback of velocity to stabilize the trajectory. In the original system, the velocity of the object was fed back through a relay with hysteresis, and the mass of the object was determined by measuring the period of an induced limit cycle. It could determine the mass of the object rather accurately. However, the trajectory of the object easily drifted because only the velocity was fed back and there was no restoring force. To generate restoring force, a spring element was added. Although the drift became smaller, it still occurred. It caused the trajectory of the object to fluctuate. To eliminate such fluctuation, an intermediate control is introduced to stabilize the trajectory. The operation of the intermediate control is analyzed to prove the convergence of the trajectory.

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