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A current meter with intelligent data system, environmental sensors, and data telemetry

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4 Author(s)
Irish, J.D. ; Dept. of Appl. Ocean Phys. & Eng., Woods Hole Oceanogr. Instn., MA, USA ; Morey, K.E. ; Needell, G.J. ; Wood, J.D.

To measure oceanographic parameters such as currents, temperature, conductivity, pressure, and suspended sediment concentrations, two film-recording current meters were upgraded with microprocessor-controlled data recorders and additional sensors. Two telemetry links relay data and allow the in situ operation of the remote instrument to be checked. In one configuration, the bottom-mounted current meter communicated by a 35-m-long wire to a small surface spar buoy, and then by a packet radio link to a nearby ship. In another development, the current meter relays data to a controller and buoyant data capsule on the bottom instrument package. The controller collects and processes the data from the current meter and periodically transfers these processed data to a data capsule and releases it. When released, the capsule rises to the surface and transmits its data to shore via the ARGOS satellite, while acting as a satellite tracked drifter

Published in:

Oceanic Engineering, IEEE Journal of  (Volume:16 ,  Issue: 4 )