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A Differential Pressure Instrument with Wireless Telemetry for In-Situ Measurement of Fluid Flow across Sediment-Water Boundaries

An instrument has been built to carry out continuous in-situ measurement of small differences in water pressure, conductivity and temperature, in natural surface water and groundwater systems. A low-cost data telemetry system provides data on shore in real time if desired. The immediate purpose of m...

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Autores principales: Gardner, Alan T., Karam, Hanan N., Mulligan, Ann E., Harvey, Charles F., Hammar, Terence R., Hemond, Harold F.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International (MDPI) 2009
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3280754/
https://www.ncbi.nlm.nih.gov/pubmed/22389608
http://dx.doi.org/10.3390/s90100404
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author Gardner, Alan T.
Karam, Hanan N.
Mulligan, Ann E.
Harvey, Charles F.
Hammar, Terence R.
Hemond, Harold F.
author_facet Gardner, Alan T.
Karam, Hanan N.
Mulligan, Ann E.
Harvey, Charles F.
Hammar, Terence R.
Hemond, Harold F.
author_sort Gardner, Alan T.
collection PubMed
description An instrument has been built to carry out continuous in-situ measurement of small differences in water pressure, conductivity and temperature, in natural surface water and groundwater systems. A low-cost data telemetry system provides data on shore in real time if desired. The immediate purpose of measurements by this device is to continuously infer fluxes of water across the sediment-water interface in a complex estuarine system; however, direct application to assessment of sediment-water fluxes in rivers, lakes, and other systems is also possible. Key objectives of the design include both low cost, and accuracy of the order of ±0.5 mm H(2)O in measured head difference between the instrument's two pressure ports. These objectives have been met, although a revision to the design of one component was found to be necessary. Deployments of up to nine months, and wireless range in excess of 300 m have been demonstrated.
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spelling pubmed-32807542012-03-02 A Differential Pressure Instrument with Wireless Telemetry for In-Situ Measurement of Fluid Flow across Sediment-Water Boundaries Gardner, Alan T. Karam, Hanan N. Mulligan, Ann E. Harvey, Charles F. Hammar, Terence R. Hemond, Harold F. Sensors (Basel) Article An instrument has been built to carry out continuous in-situ measurement of small differences in water pressure, conductivity and temperature, in natural surface water and groundwater systems. A low-cost data telemetry system provides data on shore in real time if desired. The immediate purpose of measurements by this device is to continuously infer fluxes of water across the sediment-water interface in a complex estuarine system; however, direct application to assessment of sediment-water fluxes in rivers, lakes, and other systems is also possible. Key objectives of the design include both low cost, and accuracy of the order of ±0.5 mm H(2)O in measured head difference between the instrument's two pressure ports. These objectives have been met, although a revision to the design of one component was found to be necessary. Deployments of up to nine months, and wireless range in excess of 300 m have been demonstrated. Molecular Diversity Preservation International (MDPI) 2009-01-09 /pmc/articles/PMC3280754/ /pubmed/22389608 http://dx.doi.org/10.3390/s90100404 Text en © 2009 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Gardner, Alan T.
Karam, Hanan N.
Mulligan, Ann E.
Harvey, Charles F.
Hammar, Terence R.
Hemond, Harold F.
A Differential Pressure Instrument with Wireless Telemetry for In-Situ Measurement of Fluid Flow across Sediment-Water Boundaries
title A Differential Pressure Instrument with Wireless Telemetry for In-Situ Measurement of Fluid Flow across Sediment-Water Boundaries
title_full A Differential Pressure Instrument with Wireless Telemetry for In-Situ Measurement of Fluid Flow across Sediment-Water Boundaries
title_fullStr A Differential Pressure Instrument with Wireless Telemetry for In-Situ Measurement of Fluid Flow across Sediment-Water Boundaries
title_full_unstemmed A Differential Pressure Instrument with Wireless Telemetry for In-Situ Measurement of Fluid Flow across Sediment-Water Boundaries
title_short A Differential Pressure Instrument with Wireless Telemetry for In-Situ Measurement of Fluid Flow across Sediment-Water Boundaries
title_sort differential pressure instrument with wireless telemetry for in-situ measurement of fluid flow across sediment-water boundaries
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3280754/
https://www.ncbi.nlm.nih.gov/pubmed/22389608
http://dx.doi.org/10.3390/s90100404
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