Page 55: of Marine Technology Magazine (March 2021)

Tech File

Innovative new products, technologies and concepts

Box? sh Research Debuts Underwater Filmmaking Tech

Box? sh Research, New Zealand manu-

The Box? sh facturer of underwater remotely operat- cinematography ed vehicles, announced the launch of its drone deliv- next-generation cinematography drone, ers full-frame, the Box? sh Luna, for professional un- 8K video from 1,000m depth.

derwater videographers and photogra- phers. Using imaging from Sony and a new 200mm precision optical dome, the

Box? sh Luna has been completely re- designed to allow ? lmmakers to capture underwater environments with clarity and ease of use.

The Box? sh Luna allows professional cinematographers to capture crisp and clear imagery up to 1000 meters under- water. And with the latest Sony camera integration, ? lmmakers can record in

Images courtesy Box? sh Research full-frame up to 8K 10-bit video with balance, ISO and exposure mode direct- serving various industries worldwide, precision zoom control — as well as ly from the control station. including cinematography and natural shutter speed, aperture, focus, white The Box? sh Luna is available now, history ? lmmakers.

Self-calibrating Fetch AZA

Sonardyne’s

Subsidence Monitor Sensors

Fetch Ambient-

A new breed of underwater sensor

Zero-Ambient that is able to self-calibrate, designed pressure moni- to enable precise, long-duration subsid- toring transpon- ders.

ence monitoring at all depths, has been deployed at scale. The 20-plus Fetch

Ambient-Zero-Ambient (AZA) pres- sure monitoring transponders (PMTs), developed by Sonardyne will support an ongoing long-term, large-scale seabed monitoring project at Ormen Lange for

A/S Norske Shell.

The AZA technology autonomously re-calibrates in situ. A unique control system periodically cycles the pressure sensor from ambient seabed pressure to near-zero, enabling comparison to a

Images courtesy Sonardyne highly accurate low-pressure reference any need for retrieval and recalibration vested, from an integrated high speed sensor for calibration.

The reference sensor is never subjected of the sensors. acoustic modem contained within each

This is the latest deployment of Fetch Fetch PMT or Fetch AZA PMT, using a to ambient pressure and is accurate to changes of less than a millibar, or about PMTs at the Ormen Lange ? eld, 120 km choice of Sonardyne’s acoustic systems offshore, in 800 – 1,100 m water depth. deployed from an unmanned surface ve- 1cm of head of water.

In-situ calibration unlocks the ability Each sensor collects pressure, tempera- hicle (USV) or conventional ship. The ture and inclination data at the sea? oor, data is then used to calculate any ver- to be able to monitor sea? oor subsid- ence with centimetric accuracy for up to at pre-programmed intervals. tical displacement of the seabed at the 10 years, without a loss of precision or The data is then periodically har- Ormen Lange ? eld. www.marinetechnologynews.com 55

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