Key Features

Incorporates Sonardyne's 6G® Technology

Incorporates Sonardyne's Wideband 2® signal Technology

Autonomous sensor logging with acoustic telemetry of data

Low cost free fall deployment

Low data recovery costs

Long life – up to 5 years with excellent corrosion resistance

Flexible 100 to 6000 bits per second Wideband 2 acoustic telemetry modem

Fully configurable logging through surface software

USBL positioning compatible

Integrated acoustic release

Datasheet

Fetch

Fetch is a long-life subsea sensor logging node that enables data to be wirelessly extracted via its integrated high speed acoustic modem. It can be free fall deployed to the seabed and will land in an upright position. This reduces deployment time and cost.

Fetch can be configured with an array of different sensors dependent on the monitoring application. Standard sensors include high accuracy pressure, temperature and sound velocity as well as inclination. Other sensors can be integrated internally or externally as required.

The ultra-low power platform powers up sensors only when required and logs and timestamps the data to an SD memory card.

The sampling regime can be configured serially before deployment and via the acoustic modem which is also used to recover the data to the surface. The 6000 bits per second modem transfer rate enables data to be extracted in minimal vessel time so reducing operational costs.

High capacity primary alkaline or lithium battery packs enable deployments of many years, dependent on sensor selection and sampling rate.

Fetch is compatible with Sonardyne’s Ultra-Short BaseLine (USBL) positioning systems for positioning during deployment/recovery. When the mission is complete, Fetch can be acoustically commanded to release from its stand and return to the surface under its own buoyancy ready for collection.