Side Scan Sonar

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Orca’s Iver 3 AUV is equipped with and EdgeTech 2205 sonar that collects side scan data at 600KHz/1600KHz simultaneously.

This dual frequency sonar is effective at ranges from 15 meters for high resolution imaging of sub meter objects and out to 100 meters for wide area search or bottom mapping coverage.


Interferometric Bathymetry

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The EdgeTech 2205 sonar simultaneously records bathymetry data on the 600 KHz frequency. Because this data is collected on the same transducer, it is co-registered to the side scan and is capable of producing compelling datasets by draping the side scan over 3d bathymetry models.


Magnetometry

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The Iver 3 tows a Marine Magnetics Explorer total field magnetometer when there is a need to search for or map ferrous material. The sensor is towed on a 5 meter cable to isolate it from the AUV. Mag data can be simultaneously collected with side scan sonar and bathymetry, which is highly effective for identifying unburied ferrous material.


Water Quality

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The Iver 3 can be fitted with a YSI EXO1 multi parameter sonde. The sonde can be fitted with any of the YSI line of parameter probes for measuring water quality.

The advanced navigation on the AUV combined with vehicle speed, dive angle and mission duration options allows for significant saturation and coverage of an area being sampled.


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Iver 3 AUV

Specifications

  • Maximum Operating Depth: 200 meters

  • Diameter: 5.8 inches (15cm)

  • Length: 86 inches (218cm)

  • In-Air Weight: 85lbs (39kg)

  • Speed: 2-3 knots

  • DVL bottom lock: 4.25 hours at 2.5 knots

  • Estimated endurance: 4 hours (sonar survey)

    6 hours (water quality survey)

Navigation

  • INS: iXBlue PHINS C3 fiber-optic gyro

  • DVL: Teledyne RDI Explorer (600hkz)

  • Depth Sensor: Keller PAA-30X / 30 Bar

  • GPS: WASS GPS

  • Object Avoidance: Imagenex Echosounder

Communications

  • Acoustic Modem: Teledyne Benthos

  • Radio: 2.4 GHz telemetry radio control/communications

  • Irridium: Tracking/ status updates, basic commands

  • WiFi: Remote acess

  • Ethernet: GigE Ethernet wet connect

Sensors

  • Side Scan Sonar: EdgeTech 2205 600/1600 kHz

  • Interferometric Bathymetry: EdgeTech 2205 600 kHz

  • Sound Velocity Sensor: AML

  • 4 Port MultiParameter Sonde: YSI EXO1

    • fDOM, DO, CT, Total Algae

Power

  • Lithium Ion Batteries: 780 Watt hours swappable battery section