An application of a low flow current meter to broad temperature range estuarine current measurements

Author

Murphy, David J. ; Powell, Eric ; Wilson, Elizabeth

Author_Institution

Dept. of Oceanogr., Texas A&M Univ., College Station, TX, USA

fYear

1988

fDate

31 Oct-2 Nov 1988

Firstpage

1178

Abstract

Instruments utilizing heater thermistors as sensors can measure currents over the range of five to 50 cm/s. Owing to their small size and great sensitivity, such devices are ideal for the estimation of benthic boundary layer thicknesses, stirring rates of in situ incubation experiments, and currents in and around sessile creatures. Such an apparatus is presented and a means of removing ambient temperature effects from the data is discussed. Attention is given to five calibration data sets, generated over the 15 to 35°C range

Keywords

flow measurement; oceanographic equipment; 15 to 35 degC; apparatus; benthic boundary layer thicknesses; broad temperature range estuarine current; calibration; circuit diagram; coast; estuary; flow measurement technique; heated thermistor measurement; in situ incubation experiments; low flow current meter; ocean dynamics; stirring rates; Bridge circuits; Calibration; Current measurement; Fluid flow measurement; Instruments; Power dissipation; Sea measurements; Temperature distribution; Temperature sensors; Thermal resistance; Thermal sensors; Thermistors; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

OCEANS '88. A Partnership of Marine Interests. Proceedings

Conference_Location

Baltimore, MD

Type

conf

DOI

10.1109/OCEANS.1988.23681

Filename

23681