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.
Suggested CitationArticle: 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", Sensors 9 (2009): 404-429, DOI:10.3390/s90100404, https://hdl.handle.net/1912/2718
The following license files are associated with this item:
Showing items related by title, author, creator and subject.
Hosom, David S. (Woods Hole Oceanographic Institution, 1997-10)This report will present the results of an investigation into the feasibility of several modes of wireless data transmission including: (1) radio frequency modems, (2) acoustic modems (using the ship's steel hull for a ...
Array data acquisition with wireless LAN telemetry as applied to shallow water tomography in the Barents Sea von der Heydt, Keith; Kemp, John N.; Lynch, James F.; Miller, J.; Chiu, Ching-Sang (Woods Hole Oceanographic Institution, 1992-12)This report describes the application of a new technique of digital radio telemetry, based on a recently available wireless Local Area Network Ethernet adapter, to the need for realtime transmission of data from a vertical ...