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Gyros and Inertial Navigation Systems

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  • OceanTools

    OceanTools Ltd is a subsea engineering company specialising in the design and manufacture of subsea equipment. Products are deployed in harsh environment applications including subsea survey and ROV operations.

    OceanTools products are field proven, trusted and reliable and include the following equipment and systems:

    • Video Overlay Systems
    • Fibre Optic Gyrocompass and Heading Sensors
    • Subsea Lasers
    •Subsea precision Laser Measuring System
    • Subsea Switches
    • Digital CP probes
    • Subsea Displays
    • Pan & Tilt Units

     Underwater Laser Based Measurement

    Interest and applications are growing for laser-based underwater measurements systems that can provide sub-millimetre accuracy. UVS partner, OceanTools, has completed a number of Offshore Oil& Gas tasks measuring cracks, gaps and corrosion on FPSOs and caissons. New applications may include mounting multiple systems onto a crawler.

    OceanTools products include:
    • C-Gauge: Measurement of cracks, gaps, lengths, diameters, radii and angles

    • C-Profiler: Alternative to mechanical acoustic profilers for cross-sectional profiles, free- 
span measurement and structural deformation

    • C-Scan: Internal rotational scanning of caissons, pipelines etc. External scanning of anchor chains and anodes.

    The laser has a very low power consumption and draws just 250mA at 24VDC. Because the power of the laser is below 70mW they are classed as ‘Laser class III-a’ meaning no special training is required to operate them. 

    C-Gauge Underwater Laser based measurement system C-Gauge Underwater Laser based measurement system (823 KB)

    Processed data example showing sub-millimetre accuracy on suspended chain dimension

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UVS Trenchless Technology