Research Article
Nov 1981
Particle Counter for Sediment Transport Studies
Publication: Journal of the Hydraulics Division
Volume 107, Issue 11
Abstract
An acoustic instrument for the measurement of the mass transport of sand-sized sediment particles in laboratory and natural transport systems has been developed. The instrument consists of an electromechanical transducer for the detection of sediment particles entrained in a moving fluid (air or water) and an electronic circuit which counts the transient signals produced when particles impact the transducer. By virtue of the principle of detection, instrument response to fine-grained sediment (silt and clay) and low-density material is negligible. Laboratory tests and field experiment conducted in a sand-bedded stream demonstrate that the instrument responds systematically to the mass flux of particles and therefore is potentially useful for investigations of bedload transport. The instrument is best suited for studies of transport systems characterized by high transport rates and flow velocities and having well-sorted bed material.
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Published In
Journal of the Hydraulics Division
Volume 107 • Issue 11 • November 1981
Pages: 1455 - 1465
Copyright
© 1981 American Society of Civil Engineers.
History
Published in print: Nov 1981
Published online: Feb 3, 2021
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Authors
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John P. Downing Jr.
Doctoral Candidate, Dept. of Oceanography, Univ. of Washington, Seattle, Wash. 98198
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.