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.
MetadataShow full item record
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 H2O 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.
© 2009 The Authors. This article is distributed under the terms of the Creative Commons Attribution (3.0) License. The definitive version was published in Sensors 9 (2009): 404-429, doi:10.3390/s90100404.
The following license files are associated with this item:
Showing items related by title, author, creator and subject.
Improved meteorological measurements from buoys and ships (IMET) : preliminary report on barometric pressure sensors Payne, Richard E.; Crescenti, Gennaro H.; Weller, Robert A. (Woods Hole Oceanographic Institution, 1989-12)Stability tests over periods ranging from 3 to 19 months have been carried out on Paroscientific models 215-AT and 760-15A, AIR DB-1A, Rosemount 1201F1B, Setra 270 and Heise 623 electronic barometers. The Paroscientific ...
Pressure/Temperature Logger (PTL) development and field deployment for the Great Bay, NH, tidal dynamics experiment Friedrichs, Carl T.; Spencer, Wayne D.; Aubrey, David G. (Woods Hole Oceanographic Institution, 1998-01)Durg 1992 and 1993 experiments were conducted in the shallow east side of Great Bay, New Hampshire. These experiments were conducted to better understand the morphodynamics and evolutionary tendencies of shallow ...
Effects of fluid-rock interaction on 40Ar/39Ar geochronology in high-pressure rocks (Sesia-Lanzo Zone, Western Alps) Halama, Ralf; Konrad-Schmolke, Matthias; Sudo, Masafumi; Marschall, Horst R.; Wiedenbeck, Michael (2013-10-13)in situ UV laser spot 40Ar/39Ar analyses of distinct phengite types in eclogite-facies rocks from the Sesia-Lanzo Zone (Western Alps, Italy) were combined with SIMS boron isotope analyses as well as boron (B) and lithium ...