Turnkey Airborne Gravity System


TAGS-6 (Turnkey Airborne Gravity System) represents the latest development in a long line of LaCoste-based airborne gravity systems, stretching back to the first successful airborne gravity flights in 1958. Over the last 50 years, LaCoste gravimeters have acquired hundreds of thousands of line kilometers of gravity data during academic, government, and commercial surveys. TAGS blends the latest in GPS and data acquisition technology with the solid foundation of the LaCoste dynamic gravimeter.

The TAGS-6 gravity meter is an upgrade to the Air-Sea System II, designed specifically for airborne operations. The system incorporates a time-tested, low-drift, zero-length-spring gravity sensor mounted on a gyro-stabilized platform. The sensor has a worldwide gravity measuring range (no reset necessary) of 20,000 milliGals.


New Features

  • Smaller sensor/gimbal (60%)
  • Lighter sensor/gimbal (30%)
  • New slip ring technology on the gimbal makes for a more robust and reliable stable platform
  • 20 Hz GPS and gravity data: Better GPS and gravity timing
  • Larger range of aircraft pitch and roll
  • Full feedback 500,000 mGal range on beam: more robust in turbulence
  • Double oven temperature control
  • Temperature controlled electronics
  • Microprocessor control
  • Separate, rack-mountable electronic unit and computer allow for more flexibility in configuration
  • Lockable gimbal



Manufactured by Geotomographie GmbH

Technical Details

Generated wave types: SV
Signal frequencies: Up to 500 Hz (depending on geology and borehole distance)
Operational depth: Up to 100 m
Source length: 1015 mm
Source weight: 6 kg
Cable weight per metre: 377 g
Borehole diameter: 75-100 mm (or larger if spacers are used)
Clamping system: Infatable bladder
Depth indicator: Cable marking every 2 m
Connector: To impulse generator IPG800 or IPG5000
Storage: On drum
Switch box: Switch between two vertical shot directions

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