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Geometrics G-882 Horizontal Transverse Gradiometer (TVG) frame

BeYond provides the Geometrics G-882 Horizontal Transverse Gradiometer (TVG) frame, a robust marine magnetometer frame designed for acquiring transverse gradient data. This equipment is particularly valuable for unexploded ordnance mitigation or pipeline tracing applications. Notably, the TVG offered by BeYond distinguishes itself by not having the long aluminum "A" frame found in the Geomatrixs system. This design feature enhances the ease of deployment and recovery, especially from vessels with lower deployment sheaves. The TVG from Unique Group offers a reliable and efficient solution for acquiring transverse gradient data in marine environments.

BeYond provides the Geometrics G-882 Horizontal Transverse Gradiometer (TVG) frame, a robust marine magnetometer frame designed for acquiring transverse gradient data. This equipment is particularly valuable for unexploded ordnance mitigation or pipeline tracing applications. Notably, the TVG offered by BeYond distinguishes itself by not having the long aluminum "A" frame found in the Geomatrixs system. This design feature enhances the ease of deployment and recovery, especially from vessels with lower deployment sheaves. The TVG from Unique Group offers a reliable and efficient solution for acquiring transverse gradient data in marine environments.

The Geometrics G-882 Horizontal Transverse Gradiometer (TVG) frame specifications include:


  • Maximum Tow Cable Length: 300 meters for soft tow cable, with a 30V power supply.
  • Clevis to Sensor Distance: Approximately 3.3 meters.
  • Layback Ratio: 10:1, indicating that for every 10 meters of tow cable paid out, the TVG frame will be 1 meter away from the clevis attachment point.
  • Inline Drag on the TVG Frame:
  • At 4 knots: 40 kg.
  • At 8 knots: 70 kg.


These specifications provide essential details for the deployment and operation of the Geometrics G-882 TVG frame, ensuring optimal performance and functionality during use.

The Geometrics G-882 Horizontal Transverse Gradiometer (TVG) frame specifications include:


  • Maximum Tow Cable Length: 300 meters for soft tow cable, with a 30V power supply.
  • Clevis to Sensor Distance: Approximately 3.3 meters.
  • Layback Ratio: 10:1, indicating that for every 10 meters of tow cable paid out, the TVG frame will be 1 meter away from the clevis attachment point.
  • Inline Drag on the TVG Frame:
  • At 4 knots: 40 kg.
  • At 8 knots: 70 kg.


These specifications provide essential details for the deployment and operation of the Geometrics G-882 TVG frame, ensuring optimal performance and functionality during use.


The Geometrics G-882 Horizontal Transverse Gradiometer (TVG) frame is specifically designed to support the standard G-882, whether equipped with or without an altimeter. This frame serves as a stable tow platform, featuring G-882 magnetometers arranged on a fixed 1.5 m baseline. This configuration ensures optimal detection of a wide range of targets.


Unlike the Geomatrix version, the Geometrics frame does not incorporate a large A frame. This omission is deliberate and contributes to the ease of deployment and recovery, especially on smaller vessels lacking a high sheave. The absence of the long A frame from the Geomatrix TVG frame minimizes suspended height, facilitating operations on vessels with space constraints.


The tow point of the Geometrics TVG frame is equipped with attachments for the Geometrics telemetry system or positioning beacons. This enhances operator confidence by providing crucial information for determining the layback and position of the TVG frame during deployment and operation.


The Geometrics G-882 Horizontal Transverse Gradiometer (TVG) frame is specifically designed to support the standard G-882, whether equipped with or without an altimeter. This frame serves as a stable tow platform, featuring G-882 magnetometers arranged on a fixed 1.5 m baseline. This configuration ensures optimal detection of a wide range of targets.


Unlike the Geomatrix version, the Geometrics frame does not incorporate a large A frame. This omission is deliberate and contributes to the ease of deployment and recovery, especially on smaller vessels lacking a high sheave. The absence of the long A frame from the Geomatrix TVG frame minimizes suspended height, facilitating operations on vessels with space constraints.


The tow point of the Geometrics TVG frame is equipped with attachments for the Geometrics telemetry system or positioning beacons. This enhances operator confidence by providing crucial information for determining the layback and position of the TVG frame during deployment and operation.

  • 1707938694_G-882-Spec-Sheet_0723.pdf

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