Custom 2D Electrical Resistivity Tomography / Geophysical Resistivity System

Brand Name:GOLD
Certification:IEC, ISO
Model Number:WGMD-3
Minimum Order Quantity:1 set
Delivery Time:5-8 working days
Payment Terms:L/C, D/A, D/P, T/T, Western Union, MoneyGram
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2D Electrical Resistivity Tomography Geophysical Resistivity System


The mutil-electrode geophysical resistivity system used an array exploration method, also known as the automatic resistivity system. It is the development of the direct current method, which is equivalent to the combination of 4 poles vertical electrical sounding and electrical profile method. The artificial electric field is formed by electrode power supply to the underground, and the distribution of the electric field is closely related to the distribution of the resistivity of the underground geotechnical medium. By measuring the artificial electric field of different parts of the surface, the distribution of the visual resistivity of the underground medium is understood, and the underground geological structure is inferred and explained according to the distribution of the visual resistivity of the geotechnical medium.

2D Electrical Resistivity Tomography is particularly sensitive to the water content of surrounding rock. If the surrounding rock is broken, the apparent resistivity is significantly reduced, and the visual resistivity of complete and hard rock and soil is significantly higher than that of fault zone or fracture zone and water-rich zone. This method has clear principle and intuitive image, and is a geophysical exploration method with high resolution. In recent years, with the improvement of computer data acquisition technology, the exploration efficiency has been greatly improved, the coverage area and detection depth of the section have been increased, the reliable data can be obtained in the environment of strong interference, the signal-to-noise ratio has been greatly improved, and the geological body can be accurately detected. This method has been widely and successfully used in engineering and hydrogeological exploration and mineral and water resources exploration.


Technical specification


Receiving part

Voltage channel

±6V

Measurement accuracy

Vp≥10mV时,±0.5% ±1 character

Vp< 10mV时,±1% ±1 character

Input resistance

> 50 MΩ

Apparent polarizability measurement accuracy

±1% ±1character

Sp compensation range

±1V .

Current channel

5A

Measurement accuracy

Ip≥ 10mA时,±0.5% ±1character

Ip< 10mA时,±1% ±1character

The suppression of 50Hz power frequency interference (common mode interference and differential mode interference) is better than 80dB

Launch part

Maximum transmit power

4500W

Maximum supply voltage

±900V

Maximum supply current

±5A

Power supply pulse width

1~60 seconds, the duty ratio is 1:1

Other

Operating temperature

-10°C~ +50°C, 95%RH

Storage temperature

-20°C~ +60°C

Instrument power supply

No. 1 battery (or nickel-cadmium battery of the same specification) 8 pieces

Current current

≤55mA
Weight≤7KG

Volume

310mm*210mm*210mm

WDZJ-3 multi-channel electrode converter

Converting the number of electrodes

60 road


Insulation properties

≥500 MΩ

Maximum working voltage

450 VDC

Maximum operating current

2.5 ADC

Instrument power supply

No. 1 battery (or nickel-cadmium battery with the same specification) 8 pieces

Operating temperature

-10°C~ +50°C

Measurement Data



Product Details



Application


By using 1D resistivity sounding, 1D induced polarization sounding, 2D Electrical resistance tomographic, this system is widely used in:

1. Water resources, metal and nonmetal mineral resources detection.
2. City geophysical exploration, railway and bridge inspection.
3. Hydrology and engineering geology as inspecting dam base and flood protection levee for incipient faults.
4. Geothermal prospecting


Packing and Delivery


China Custom 2D Electrical Resistivity Tomography / Geophysical Resistivity System supplier

Custom 2D Electrical Resistivity Tomography / Geophysical Resistivity System

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