Influence of the Transducer Port on Water Pressure Measurement
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 149, Issue 4
Abstract
In a laboratory experiment, air could be encapsulated inside a small port of a pressure transducer located in front of a sensing chip during water action on a structure, which may induce extra but unwanted air pressure, leading to inaccurate measurement of the desired water-induced pressure. In this study, both the ported and the deported pressure transducers are applied to the wave-pressure measurements regarding sinusoidal and solitary wave experiments. The present result shows that the influence of encapsulated air inside the transducer port can generally result in an underestimation of the measured water pressure. Accordingly, deported-type pressure transducers are recommended for the water-induced pressure measurement, especially in a small-scale laboratory experiment.
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Acknowledgments
This study was financially supported by the National Natural Science Foundation of China (Nos. 52071288 and 52271292).
References
Bagnold, R. A. 1939. Interim report on wave-pressure research. Technical Report. London: Institution of Civil Engineers.
Dean, R. G., and R. A. Dalrymple. 1991. “Water wave mechanics for engineers and scientists.” In Advanced series on ocean engineering, vol. 2, edited by P. L. F. Liu, 83–86. Singapore: World Scientific.
Laitone, E. V. 1960. “The second approximation to cnoidal and solitary waves.” J. Fluid Mech. 9 (3): 430–444. https://doi.org/10.1017/S0022112060001201.
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Published In
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 149 • Issue 4 • July 2023
Copyright
© 2023 American Society of Civil Engineers.
History
Received: Jul 15, 2022
Accepted: Mar 7, 2023
Published online: Apr 24, 2023
Published in print: Jul 1, 2023
Discussion open until: Sep 24, 2023
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