MAGNETOMETER MINIMAG

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MAGNETOMETER MINIMAG

  1. Functions: High precision gravitational measurement on land for basic geological investigation, mineral search and assessment.
  2. Manufactured by: GEODEVICE, Russia.
  3. Year of production: 2003
  4. Webiste: https://geodevice.ru
  5. Specifications
  • Principle of operation : Based on the Overhauser effect application
  • Range 20 000 ÷ 110 000 nT
  • Absolute accuracy 0.2 nT
  • Sensitivity: 0.015 nT in cycle 3 s / 0.026 nT/√Hz
  • Resolution: 0.001 nT
  • Optimal angle between the axis of the sensor and the field vector: 90°
  • The working range of inclination relative to the optimal angle: ± 45°
  • Orientation error: 0.5 nT (±45°)
  • Gradient tolerance: 10 000 nT/m
  • Minimum measurement cycle 0.5 s
  • Communication interface with PC: USB
  • Memory capacity: 1 000 000 (in base magnetic station mode), 250 000 (with coordinate referencing)
  • Power: 10 ÷ 16.8 V, Li-ion battery
  • Operating temperature range; −40 ÷ +60 °C, readability of the display is provided at temperatures above −20 °C
  • Weight: 3.1 kg (with battery)
  • Nominal voltage of Li-ion battery 14.6 V
  • Nominal capacity of the battery 4 A·h
  • Continuous operation time with a fully charged battery and a 20 °C temperature 15.9 h in 2 s cycle
  1. Some project used this equipment by Geophysical Division.

-Measurement of magnetic variation of projects Magnetic – gamma spectrum airborne survey at scale 1 / 50,000 and gravitational measurement at scale 1 / 100,000;

– Measurment of magnetic for Preliminary survey / Detailed survey airborne geophysical anomalous clusters of the projects magnetic – gamma spectrum airborne survey at scale 1 / 50,000 and gravitational measurement at scale 1 / 100,000.

– Component project “Magnetic – gamma spectrum and gravity airborne survey  in the Northwest region” under the Project “General investigation of minerals and completing geological maps at scale 1:50,000 in the Northwest region for planning and sustainable development socio-economic”.

And many other projects.

                                                                                                                                             Source: Geophysical Division./.

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GEOPHYSICAL DIVISION

Website: https://geophysics.gov.vn/
Office address: No. 1 Alley 95 Chien Thang Street, Van Quan Ward, Ha Dong District, Hanoi City
Phone: 0243 8540448
Fax: 0243 8542223
Email: ldvldc@monre.gov.vn