Inductive Modem For Ocean Data Telemetry

Fougere, A.; Brown, Nate; Hobart, E.

doi:10.1109/oceans.1991.628211

Cited by 4 publications

(3 citation statements)

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“…Data telemetry from subsurface instruments required added data to link up the mooring to the surface. Acoustic (Freitag et al 2005) data links, inductive (Fougere et al 1991) data links using plastic-jacketed mooring wire as a conductor, and electrical cables have all been used. Lacking a surface expression, data telemetry from subsurface moorings is more difficult.…”

Section: Evolution Of Ocean Observing Using Moored Instrumentationmentioning

confidence: 99%

100 Years of Progress in Ocean Observing Systems

Davis

Talley

Roemmich

et al. 2019

Meteorological Monographs

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The history of over 100 years of observing the ocean is reviewed. The evolution of particular classes of ocean measurements (e.g., shipboard hydrography, moorings, and drifting floats) are summarized along with some of the discoveries and dynamical understanding they made possible. By the 1970s, isolated and “expedition” observational approaches were evolving into experimental campaigns that covered large ocean areas and addressed multiscale phenomena using diverse instrumental suites and associated modeling and analysis teams. The Mid-Ocean Dynamics Experiment (MODE) addressed mesoscale “eddies” and their interaction with larger-scale currents using new ocean modeling and experiment design techniques and a suite of developing observational methods. Following MODE, new instrument networks were established to study processes that dominated ocean behavior in different regions. The Tropical Ocean Global Atmosphere program gathered multiyear time series in the tropical Pacific to understand, and eventually predict, evolution of coupled ocean–atmosphere phenomena like El Niño–Southern Oscillation (ENSO). The World Ocean Circulation Experiment (WOCE) sought to quantify ocean transport throughout the global ocean using temperature, salinity, and other tracer measurements along with fewer direct velocity measurements with floats and moorings. Western and eastern boundary currents attracted comprehensive measurements, and various coastal regions, each with its unique scientific and societally important phenomena, became home to regional observing systems. Today, the trend toward networked observing arrays of many instrument types continues to be a productive way to understand and predict large-scale ocean phenomena.

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Section: Evolution Of Ocean Observing Using Moored Instrumentationmentioning

confidence: 99%

100 Years of Progress in Ocean Observing Systems

Davis

Talley

Roemmich

et al. 2019

Meteorological Monographs

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“…Underwater wireless communication can be realized by acoustic remote sensing technology, but the channel environment is complex, which makes the system more complex and expensive. Underwater cable inductive coupling communication technology is a convenient, economic, reliable and flexible solution [3], its information transmission rate is higher than the underwater acoustic communication, and it has better real-time performance. Besides，the position of terminal equipment could be changed without a wired connection with cable [4].…”

Section: Introductionmentioning

confidence: 99%

Design and Implementation of Underwater Cable Inductive Coupling Communication System

Xue¹,

Ding²,

Liu³

2017

Proceedings of the 2017 2nd International Conference on Automation, Mechanical Control and Computational Engineering (AMCCE 201

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Abstract. With the development of human society, the importance of the ocean is gradually being excavated. In order to transfer the data of underwater observation instrument to the water surface, the method of inductive coupling data transmission mode can be used. In this paper, the basic principle of the system was derived. This system used FPGA as the core to achieve the modulation and demodulation, and achieved the demand for inductive coupling communication with external circuit, it could have a certain practical value.

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“…This allows sensors or instruments to be located anywhere on the mooring and eliminates the need for expensive and sometimes unreliable electromechanical cables and their terminations. Tests performed at WHOI to look at the effects of breaks in the plastic jacket due to fishbite or other causes determined that relatively small breaks were easily tolerated [8]. In fact up to 30 cm of wire could be exposed before signal drop-out occurred.…”

Section: Introductionmentioning

confidence: 99%

Inductive Telemetry on a Deep Ocean Surface Mooring.

Frye¹,

Bocconcelli²,

Liberatore³

et al. 1995

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A long term engineering test of ocean data telemetry using inductive coupling is being performed offshore Bermuda as part of the ONR-sponsored Atlantic , Long Term Oceanographic Mooring (ALTOMOOR) program. Inductive modems are general purpose telemetry devices which can be used with standard, plastic-jacketed steel mooririg lines to transmit data between instruments in the water column and a receiver in the surface buoy. The advantage of inductive coupling over electrically connected instrumentation is that expensive and unreliable electro-mechanical cables and terminations are not needed to accomplish real time data telemetry. The modems send and receive data via toroids clamped around the wire which act as single turn transformers. Data telemetered up the wire are sent at a rate of 1200 b/s; commands are sent down the wire at 300 b/s.

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Inductive Modem For Ocean Data Telemetry

Cited by 4 publications

References 1 publication

100 Years of Progress in Ocean Observing Systems

100 Years of Progress in Ocean Observing Systems

Design and Implementation of Underwater Cable Inductive Coupling Communication System

Inductive Telemetry on a Deep Ocean Surface Mooring.

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