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Tritech Device / Instrument

Gemini 1200id

Dual-frequency 720/1200 kHz multibeam imaging sonar for work-class ROVs, AUVs and trenching, with 120° field of view; titanium, rated to 4000 m.

Description

The Gemini 1200id is a dual-frequency multibeam imaging sonar built on the same platform as the Gemini 720is. It keeps a 120° horizontal field of view at both 720 kHz and 1200 kHz and improves attenuation of waterborne electrical noise, offering an easy upgrade path to higher-resolution imaging for work-class ROVs.

Key features

  • Operating frequencies of 720 kHz and 1200 kHz, maximum range 120 m / 50 m
  • Range resolution of 4 mm / 2.4 mm and effective angular resolution of 0.25° / 0.12°
  • Integrated velocity-of-sound sensor for high positional accuracy
  • CHIRP processing for better target separation over longer ranges
  • Ethernet or VDSL communications, 19 to 74 V DC supply, 16-27 W power draw
  • Titanium housing rated to 4000 m
  • Fully compatible with Genesis software; SDKs for Windows and Linux

Applications

Best suited to work-class ROV (WROV), AUV and trenching operations where real-time imaging is needed in low visibility.

Specifications

Operating frequency720 kHz / 1200 kHz
Depth rating4000 m
Power requirements16 - 27 W (range dependent)
Supply voltage19 to 74 V DC
CommsEthernet, VDSL
MaterialTitanium
Maximum range120 m / 50 m
Horizontal beamwidth120°
Vertical beamwidth20° / 12° (tilted down 10°)
Effective angular resolution0.25° / 0.12°
Range resolution4 mm / 2.4 mm
Acoustic angular resolution1.0° / 0.6°

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