A Dynamic Evaluation Technique for Liquid Flow Meters Based on Hydraulic Line Dynamics
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Published:1997-06-01
Issue:2
Volume:119
Page:305-307
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ISSN:0022-0434
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Container-title:Journal of Dynamic Systems, Measurement, and Control
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language:en
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Short-container-title:
Author:
Peng Guangzheng1, Zhao Tong1
Affiliation:
1. Department of Automatic Control, Beijing Institute of Technology, Beijing, People’s Republic of China
Abstract
A new concept for the evaluation of flowmeter dynamic response is presented. A technique based on hydraulic line dynamics is applied to achieve accurate measurements of the reference flowrate. The major components in the equipment used in experimental verification of the theory were a test pipe, a pulsating flow generator, three pressure transducers, an A/D converter, and a microcomputer system. This equipment allowed the dynamic characteristics of a flowmeter to be investigated in both the time and frequency domains. Comparisons of flowrates measured using the line dynamic technique and the same flowrates recorded by the flowmeter are presented. The results confirm the feasibility and practicability of the dynamic line technique for measuring rapidly varying flows.
Publisher
ASME International
Subject
Computer Science Applications,Mechanical Engineering,Instrumentation,Information Systems,Control and Systems Engineering
Reference6 articles.
1. Brown, F. T., 1962, “The Transient Response of Fluid Lines,” ASME Journal of Basic Engineering, Vol. 79, No. 4. 2. Kagawa, T., et al., 1983, “A Fast and Accurate Approach for Pressure Loss Calculation in Characteristic Method,” Trans. JSME(B) (in Japanese), Vol. 149, No. 447. 3. Lefebvre
P. J.
, and DurginW. W., 1990, “A Transient Electromagnetic Flowmeter and Calibration Facility,” ASME Journal of Fluids Engineering, Vol. 112, pp. 12–15. 4. Nakano
K.
, et al., 1986, “A Study of Instantaneous Flow Rate Measurement in High Frequency Region Based on Hydraulic Pipe Line Dynamics,” Trans. JSME(B) (in Japanese), Vol. 52, No. 473, pp. 413–418. 5. Zhao
T.
, et al., 1990, “Real Time Measurement for High Frequency Pulsating Flow Rate in a Pipe,” Trans. ASME, Vol. 44, No. 11, pp. 314–320.
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