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IEEE Journal of Oceanic Engineering

Issue 3 • Date Jul 1988

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Displaying Results 1 - 9 of 9
  • The dynamic response of the two-electrode conductivity cell

    Publication Year: 1988, Page(s):118 - 123
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB)

    The dynamic response of the two-electrode conductivity cell in the dual-needle configuration of M.C. Gregg et al. (1981) was investigated both theoretically and experimentally. A theory is presented which answers fundamental questions regarding the effective cell volume and the mathematical form of the transfer function. These characteristics are shown to be functionally dependent on the spacing b... View full abstract»

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  • Safety-enhanced, high-rate, nonmagnetic lithium D-size cells for oceanographic and naval use

    Publication Year: 1988, Page(s):148 - 154
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (504 KB)

    Tests were conducted to determine the performance and safety characteristics of specially designed, nonmagnetic Li/BrCl in SOCl2 (Li/BCX) and Li/Cl2 in SO2Cl2 (Li/CSC) battery cells. Discharge tests showed that D-size battery cells yield energy densities of 1.07 Wh/cc3 at currents of 0.17 A. The combination of high energy density and nonmagne... View full abstract»

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  • New generation CTD system [conductivity-temperature-depth sensor]

    Publication Year: 1988, Page(s):129 - 134
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    A microprocessor-based CTD (conductivity-temperature-depth) sensor unit is described in which the microprocessor is used to vary the analog-to-digital conversion process to achieve 16-bit resolution at a measurement rate of 500 measurements per second, or 18-bit resolution at 30 measurements per second. Software control of resolution, sampling rate, and sampling sequence permit the sensor unit to ... View full abstract»

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  • A high-frequency, shallow-water acoustic measurement system

    Publication Year: 1988, Page(s):155 - 162
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (920 KB)

    The US Naval Ocean Research and Development Activity has developed a high-frequency acoustic measurement system for use in shallow water. The heart of this system is a pair of submersible towers supporting acoustic transmitting and receiving instrumentation. These towers are transported to an experimental staging area, assembled, and acoustic instrumentation installed. They are towed to a preselec... View full abstract»

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  • Progress report on the ENDECO free-fall CTD [conductivity-temperature-depth sensor system]

    Publication Year: 1988, Page(s):135 - 139
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB)

    A description is given of a vehicle system designed to meet the World Ocean Circulation Experiment (WOCE) specifications and provide a low-cost alternative for the oceanographer to using ships with hydrographic winches and dedicated conductivity-temperature-depth (CTD) systems. The vehicle is tracked using a pressure-coded acoustic pinger synchronized to an IBM-compatible computer aboard the deplo... View full abstract»

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  • CTD sensor characteristics and their matching for salinity calculations

    Publication Year: 1988, Page(s):107 - 117
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (848 KB)

    The response characteristics of conductivity-temperature-depth (CTD) sensors used for the derivation of ocean properties from profiling instruments are discussed. The influence of design and operating conditions on the impulse response is explored with examples drawn from commercially produced cells in common use. The speed dependence of both temperature and conductivity sensor response is discuss... View full abstract»

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  • A low-cost, expendable, helicopter-deployed buoy for ocean surface meteorological measurements

    Publication Year: 1988, Page(s):144 - 147
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (468 KB)

    A low-cost, expendable, helicopter-deployed, wave-riding buoy is described that has been developed to measure meteorological properties at sea. The buoy weighs 8.2 kg and is 1.3-m long and 8.9 cm in diameter in its stored configuration. After deployment, the buoy extends a 2.5-m sensor mast above the water and a 3.8-m ballasted keel below the water. Buoyancy is provided by an inflated air bladder.... View full abstract»

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  • EPSONDE: an instrument to measure turbulence in the deep ocean

    Publication Year: 1988, Page(s):124 - 128
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (412 KB)

    EPSONDE is a tethered free-fall profiling system used to obtain temperature microstructure and velocity turbulence data to a depth of at least 1500 m. EPSONDE, which carries a variety of slow and fast sensors, is deployed on a loose kevlar multiconductor cable by a specialized wire-handling system. Data are transmitted from this underwater unit (1792 samples per second) to a shipboard system which... View full abstract»

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  • Performance characteristics and calibration of the ENDECO pulsed dissolved oxygen type 1125 system

    Publication Year: 1988, Page(s):140 - 143
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB)

    The initial response pattern for a conventional two-electrode, membrane-type dissolved-oxygen probe connected to an ENDECO model 1125 dissolved-oxygen sensor controller is presented. The controller implements a chronoamperometric technique and involves application of the polarizing potential as a pulse. The pulse duration confines the diffusion boundary within the internal electrolyte and the memb... View full abstract»

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Aims & Scope

The IEEE Journal of Oceanic Engineering (ISSN 0364-9059) is the online-only quarterly publication of the IEEE Oceanic Engineering Society (IEEE OES). The scope of the Journal is the field of interest of the IEEE OES, which encompasses all aspects of science, engineering, and technology that address research, development, and operations pertaining to all bodies of water. This includes the creation of new capabilities and technologies from concept design through prototypes, testing, and operational systems to sense, explore, understand, develop, use, and responsibly manage natural resources.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
N. Ross Chapman
School of Earth & Ocean Sciences
University of Victoria
3800 Finnerty Road
Victoria, BC V8P 5C2 Canada
chapman@uvic.ca