A Real Time Method of Measuring Unsteady Flow Rate Employing Centerline Velocity in a Circular Pipe : Fluids Engineering
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概要
- 論文の詳細を見る
This paper presents a new real time method of measuring unsteady flow rate employing centerline velocity in a circular pipe. Transfer functions which relate variables in axially symmetrical laminar flow can be obtained by mathematical analysis. We applied an approximate function of transfer function between the center-line velocity and the mean flow velocity to the measurement of unsteady flow rate. An analog electronic circuit whose transfer characteristic is equivalent to the approximate transfer function can be made easily, since it is composed of a proportional element, two first order lag elements and an element based on the second order lag element. The real time measurement of unsteady flow rate can be realized with the analog electronic circuit by inputting a measured signal of the centerline velocity to it. The validity of this method is clarified experimentally by comparing it with another measuring method whose validity has already been confirmed.
- 一般社団法人日本機械学会の論文
著者
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ZHAO Tong
Department of Mechanical Engineering, College of Science and Technology, Nihon University
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Takenaka Toshio
Department Of Control Enginerig Faclty Of Engineering Tokyo Institute Of Technology
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Zhao Tong
Department Of Control Enginerig Faclty Of Engineering Tokyo Institute Of Technology
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KITAGAWA Ato
ineering Faculty of Engineering Tokyo Institute of Technology
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TAKENAKA Toshio
ineering Faculty of Engineering Tokyo Institute of Technology
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Kitagawa A
Tokyo Inst. Technol. Tokyo Jpn
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Zhao Tong
Department Of Civil Engineering Tianjin University
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