Page 58: of Marine Technology Magazine (May 2022)

Tech Files

Innovative new products, technologies and concepts

Tritech’s Gemini Imaging Sonar

Linden Photonics Valeport Instruments

Tritech released the Micron Gemi-

Linden Photonics said it supplied Valeport introduced several new the critical ? ber optic link transmitting ni, which the company claims is the technologies at Oceanology International pictures and videos seen around the world smallest multibeam sonar on the market. held earlier this year, including: from the mission to ? nd the wreckage of With improved image quality, a 90-degree • Bathy2 (pictured) – an enhanced, ro- polar explorer Ernest Shackleton’s ship horizontal ? eld of view and 50 m range, bust integrated instrument to provide reli- the Micron Gemini is designed to of-

Endurance lost 10,000 feet under Antarc- able and accurate density corrected depth tic ice. The Endurance22 expedition team fer cost effective obstacle avoidance and data up to 6000m came to Linden to build the best possible navigation for small ROVs and AUVs, • miniIPS2 and uvSVX – with unique cable for the job, Linden said. Thin yet as well as utilization with Tritech’s Diver interchangeable pressure heads, these

Mounted Display system (DMD). Along- strong, rugged yet light, the patented de- next-gen sensors bene? t users who work sign provided a dedicated link to the ROV side improved image quality, the Micron at different depths providing real time data. Not wanting to Gemini now includes a built-in pressure • SWiFT CTD and SWiFT CTDplus risk a lost AUV, the Endurance22 team sensor, temperature sensor, depth read- – designed for a seamless work? ow, these ing and optional AHRS (Attitude Head- decided a reliable link was needed. user-friendly pro? lers deliver improved

Linden said it supplied this cable in a ing and Reference System). The Micron accuracy and versatility to those requiring

Gemini operates at 720kHz.

single continuous length 25km long. CTD measurements.

USV Multibeam Echosounder 3D at Depth Expands KM Wireless Video Solution

Kongsberg Maritime launched the 3D at Depth expands with a ma- Kongsberg Maritime launched its

EM 712 USV, a multibeam echo- rine robotics solution, launching Cuvier cNODE Mantis – a new addition to the

DEEP, an automated underwater solution sounder for use with Unmanned Surface cNODE product range of acoustic mo- that combines sensors and system perfor- Vehicles (USVs). The EM 712 USV has dems which introduces the new capability mance with operational ef? ciency and been designed to be easily integrated with to stream a live video feed. The live video data quality in one solution — leveraging and operated from any USV. It features a it streams is transmitted to a receiver in- subsea container housing redesigned elec- 3D at Depth’s SL4 technology. stalled either on the ROV’s TMS (Tether

Neil Manning, COO, said: “We have tronics, which would normally be located Management System) or on the vessel it- developed the new service delivery and on the topside of a standard EM 712. The self, at ranges of up to 500m. As the wire- application by evolving the hovering un- container ? ts inside the same footprint as less video transfer works on a high-speed manned 3,000m deep-water dual-hull the transducers and can be installed in a acoustics link it will function in both

SAAB Sabertooth Underwater System, gondola. It is fully frequency-agile be- murky and clear water conditions and is tween 40 and 100 kHz, allowing for long- modi? ed to enable greater endurance and unaffected by background light. With a more diverse sensor payload integration, range and swath coverages by utilizing bit-rate of up to 70 kbit/s, it allows for the meaning both greater in water operational CW and FM chirp pulses, in combination transfer of live video with a typical quality with being a high-resolution sonar. time and higher data capture accuracy.” of 420 x 380p at four frames per second.

58 May/June 2022

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