Mutil Electrode Geo Resistivity Test / Electrical Resistivity Imaging System

Brand Name:Gold
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
Place of Origin:Chongqing, China
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Geo Resistivity Test Mutil Electrode Electrical Resistivity Imaging System


Electrical Resistivity Imaging System(also named2D ERT) is a non-invasive geophysical method of primary interest for addressing subsurface engineering problems. The method is based on the assumption that subsurface geological materials have significant resistivity contrasts that can be identified based on measurements on the surface. The 2D ERT survey method has been shown to be useful as a cost-effective and rapid method to obtain wide area subsurface information that is relevant for subsurface engineering problems.

The electrical resistivity imaging system is one of the most widely used near-surface geophysical survey methods for civil engineering applications. For identification of bedrock structures cavities or sinkholes geotechnical site investigation slope stability investigation and unknown bridge foundation determination , also The electrical resistivity imaging system may be used for various other purposes in subsurface engineering investigations,Including investigating the subsurface geology of a building construction site, determining the depth of an unknown bridge foundation, and determining seepage from the earthen embankments of a wastewater treatment pond system.


Please see as following details about our electrical resistivity imaging system :



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

Certificate



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Mutil Electrode Geo Resistivity Test / Electrical Resistivity Imaging System

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