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GT-1M marine gravimeter

The GT-1M marine gravimeter is based on 40 years of continuous marine gravimeter development by Gravimetric Technologies.  The meter generates real-time values of delta-g which need only be corrected for drift according to reference measurements taken prior to and following each cruise.  Upgrading the GT-1M to use real-time DGPS allows wider bandwidth corrections of ship movement which in turn provides higher spatial resolution data.

Features

  • Small size, light weight, easy installation
  • Rugged construction, low power consumption
  • Automated warm-up, calibration and operation
  • Static noise level 0.2 mGals (fine channel)
  • Repeatability in survey mode 0.20 to 0.50 mGals
  • 300 Hz acquisition and platform control
  • Dual dynamic ranges: +/- 250 Gals and +/- 500 Gals
  • High spatial resolution

Technical description (pdf format, 312 KB)

 

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