Frequency domain electromagnetic induction compact profiler – Geovizer

Geovizer – final version of three-coil induction system for profiling on 3 frequencies (range – from 12.5 to 111 kHz).

Sounding with alternating electromagnetic fields has gained a growing attention and a broad usage during the last three decades, including Frequency Domain Electromagnetic Induction (FD-EMI) sounding methods.


  • Innovate radial isometric primary field compensation method;
  • Optimized calibration, providing profiling at 3 frequencies;
  • Simplified functional of the control program – visualizations of maps, as well as profile curves;
  • Could be controlled by any Android smartphone;
  • Compact dimensions and lower weight;
  • Smaller Tx-Rx spacing for accurate profiling;
  • Air calibration and warming procedures functionality available for more reliable results.

Main purposes

  • Agronomy
    Evaluation of the concentration of mineral fertilizers
    Quality and effectiveness control of various procedures
    Soil fertility assessment
    Seasonal monitoring of changes in soil conditions
    Investigation of soil condition, determination of fracture zones, watering
  • Utilities
    Monitoring the state of the roadside space
    Monitoring of underground communications
    Search and localization of water leakage in underground pipelines
    Location of underground utilities, structures, etc.
  • Engineering geology
    geological engineering surveys
    engineering and hydrological surveys
    environmental engineering survey
  • Archeology
    Localization of archaeological sites
    Monitoring the condition of architectural monuments hidden under the ground
    Detailed study of archaeological objects
  • Ecology
  • Agroecology
    Analysis of the influence of man-made factors
    Environmental supervision
    Monitoring of potentially hazardous objects
    Environmental risk management
    Environmental assessment of soil contamination with fuels and lubricants
    Detection and localization of industrial waste dumps of any chemical composition
  • Reclamation
    Performance monitoring
    Monitoring the dynamics of groundwater distribution
  • Security
    Search for criminal caches, tunnels, tunnels
    Detection of tie-ins into trunk pipelines
    Search for the source of leakage and estimate the amount of leakage from trunk pipelines of petroleum products

Technical specifications

  • Frequency range: 12.5-111 kHz;
  • Transmitter power (impulse): 60 W;
  • Receiver sensitivity: 1 mV;
  • Scan time for a single point at 3 freqs: 0.3-0.9 sec (or any set from 1-3 deferent frequencies);
  • Noise level: 50 nV;
  • Dimensions: 90х75х25 cm
  • Battery operation time: 8 hours;
  • Weight: 5 kg.

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Instruction manual for “Geovizer”

Software for Geovizer data collection and visualisation QZond 4.7 (Android)

Software for *.qz data process and visualize – iiSystem 4.05 (Windows PC)