Geo Eri/Ert Electrical Resistivity Imaging Survey Instrument Tomography Equipment Geological Exploration Instrument Underground Water Mineral Exploration

• Customization: Available
• Accuracy: Electrical Resistivity Imaging Equipment
• Horizontal Line: Electrical Resistivity Tomography Equipment
• Model NO.: WGMD
• Vertical Lines: 2D/3D Resistivity Tomography 2D IP Imaging
• Maximum Transmitting Power: 9000W
• Maximum Supply Voltage: ±1500V (3000vp-P)
• Tablet PC: Available
• Electrodes: 60PCS, 90PCS, 120PCS for Option
• Cable Take-out Spacing: 3m, 5m, 10m for Option
• Survey: Resistivity and IP
• Detection Field: Underground or Underwater
• Res Cable: Disrubite Cable or Centralized
• Application: Underground Exploration
• Measurement Way: Eri Ert IP
• After-Sales Service: Provide
• Warranty: 1 Year
• Transport Package: Wooden Box
• Specification: 2D/3D Resistivity Tomography 2D IP Imaging
• Trademark: GOLD
• Origin: China
• HS Code: 9015800090
• Production Capacity: 100PCS/Month

Product Description

Geo ERI/ERT Electrical Resistivity Imaging Survey Instrument Tomography Equipment Geological Exploration Instrument Underground Water Mineral Exploration

Product Description

Electrical Resistivity Tomography (ERT):

ERT is a 2D (two-dimensional) or 3D method. This technique involves arranging multiple electrodes along a survey line, and measurements are made in a series of steps that allow for the construction of a resistivity profile over a horizontal plane or 3D block.
It provides detailed information about the lateral and vertical variation in resistivity, creating a more comprehensive image of the subsurface.
The measurements are typically made over a longer profile, enabling the creation of cross-sectional or three-dimensional models of subsurface resistivity distribution.


Functions of Geo ERI/ERT Electrical Resistivity Imaging Survey Instrument Tomography Equipment Geological Exploration Instrument Underground Water Mineral Exploration

• Self-potential survey
• General resistivity/IP VES survey
• Multi-electrode 2D resistivity imaging
• Multi-electrode 2D induced polarization (IP) imaging
• Multi-electrode 3D resistivity imaging

Applictions of Geo ERI/ERT Electrical Resistivity Imaging Survey Instrument Tomography Equipment Geological Exploration Instrument Underground Water Mineral Exploration

• ERI equipment is typically used:

  1. Groundwater Exploration and Aquifer Mapping:

  ERI can help identify and map groundwater resources. By measuring variations in resistivity, which correlate with the presence of water and its salinity, ERI can assist in determining the depth and extent of aquifers, making it useful for water resource management.

  2. Environmental Site Assessments:

  ERI is employed to assess contamination in soil and groundwater. Contaminants often cause changes in the resistivity of the subsurface, and ERI can help locate plumes of contaminants, such as hydrocarbons or heavy metals, which are difficult to detect using traditional methods.

  3. Geotechnical Investigations:

  In construction and civil engineering, ERI is used to evaluate subsurface conditions before building structures such as roads, tunnels, or foundations. It helps in identifying soil types, bedrock depth, and detecting voids or fractures that may pose risks to structural integrity.

  4. Mining and Mineral Exploration:

  ERI can be employed in the mining industry to explore and map mineral deposits. The resistivity of different minerals varies, so this technique can help in locating ore bodies, mapping the extent of deposits, or finding faults and fractures in the earth.

  5. Archaeological Investigations:

  Archaeologists use ERI to locate and map ancient structures, burial sites, or other significant features without disturbing the ground. Subsurface anomalies in resistivity can indicate the presence of archaeological features like walls, tombs, or foundations.

  6. Geothermal Energy Exploration:

  ERI is used to assess the subsurface conditions for geothermal energy projects. By mapping the resistivity, it can help locate geothermal reservoirs or identify thermal anomalies associated with geothermal systems.

  7. Environmental and Civil Engineering Projects:

  For projects such as dam construction, slope stability analysis, or flood risk assessment, ERI is used to study the characteristics of the subsurface, such as soil properties, bedrock characteristics, and the presence of fractures or faults.

  8. Monitoring and Detection of Sinkholes and Landslides:

  ERI can be used to detect changes in resistivity over time in areas prone to sinkholes or landslides. Monitoring these changes can help assess the risk of future geohazards and inform mitigation strategies.

  9. Pipeline and Infrastructure Monitoring:

  For existing pipelines or underground infrastructure, ERI is employed to detect leakage or corrosion. The resistivity around a pipeline may change when leaks or other damage occur, allowing for targeted inspections and repairs.

Key Feature of Geo ERI/ERT Electrical Resistivity Imaging Survey Instrument Tomography Equipment Geological Exploration Instrument Underground Water Mineral Exploration

High power, wide range, high precision: max power up to 9000W (1500V*6A), voltage input range is 160Vp-p, high measuring precision of small signal (voltage is less than 0.1mV and current is less than 0.1mA with ±1% measuring precision);all of which make WDA-1/WDA-1B mainframe an ideal device for regions of high resistivity and to achieve better measured results.

Multi-functional: voltage/current range and small signal accuracy are improved greatly, which makes it applys with rock sampling tester, high-power IP receiver, general electrical method instrument, IP instrument, water detector, multi-electrode 2D/3D electrical imaging instrument, etc.

Various measuring parameters, wide applications: it is available to measure data of voltage (V_P), current (I_P), apparent resistivity (ρs), Self-Potential (SP), apparent polarizability (M~M7), metal factor (G1~G7), half decay time (TH), deviation (r), induce polarization ratio (J) and voltage decay curve, etc.

Bluetooth technology, wireless remote control: Bluetooth technology enables the tablet PC to control the WDA-1/WDA-1B mainframe in 10 meters. It enables all operations as set parameters, start measurement, display result and save data more easily.

Tablet PC operate, powerful function: all operations as parameters setting, data display, data storage, curve drawing all be finished on the tablet PC, easy and visuable for filed data procession.

Specifications of Geo ERI/ERT Electrical Resistivity Imaging Survey Instrument Tomography Equipment Geological Exploration Instrument Underground Water Mineral Exploration

Transmitting
Maximum power	9000W(VES),2400W(Imaging)
Maximum voltage	1500V(VES),2400 peak-to-peak; 800V(Imaging), 1600 peak-to-peak
Maximum current	6A(VES), 3A(Imaging)
Power supply pulse width	1~60s, duty cycle is 1:1
Receiving
Voltage	± 80V (24 bit A/D)
Vp accuracy(before stacking)	If Vp≥5mV, ±0.2% ±1LSB. If 0.1mV≤ Vp<5mV, ±1%±1LSB.
Current	6A (24bit A/D)
Ip accuracy(before stacking)	If Ip≥ 5mA, ± 0.2% ±1LSB;If 0.1mA≤ Ip<5mA, then ± 1% ±1LSB..
Apparent Polarizability Accuracy	±1% ±1LSB
Suppression	≥80dB, for 50Hz or 60Hz (industrial frequency interference) either in common mode or differential mode interference
Input impedance	>100MΩ
SP compensation range	± 10V

18 electrode arrays available for the multi-electrode system: 

Wenner Alpha (α),  Wenner Beta (β), 
Wenner Gamma (γ),  Three-Pole Direct (3P Direct (δA)),
Three-Pole Reverse (3P Reverse(δB)),  Two-Pole Roll Along (2P AM),
Three-Pole Roll Along (3P A-MN),  Three-Pole Roll Along (3P AB-M),
Dipole-Dipole Roll Along (Dipole-dipole),  MN-B,
Schlumberger (α2),   Self-Potential M (SP-M),
Self-Potential MN (SP-MN), Charging-M(CHG-M),
Charging-MN (CHG-MN), Cross-Hole Dipole (CR-DIPOLE),
Combined Profiling,  User-Defined.