OEM Geophysical Exploration Instrument ERT Survey Resisitvity Tomography

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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Resisitvity Tomography Geophysical Exploration Instrument ERT Survey


Main Functions


The resistivity tomography geophysical exploration instrument can solve the underground geological problems by observing and studying the distribution law of the artificially established underground stable current field. It has the characteristics of intuitive, efficient, high resolution and high precision. The electrical properties of underground media are studied by the changes of the artificial stable current field established by ground observation, and the buried depth, properties and shapes of underground obstacles are determined by analysis.


Electrode arrangement


Up to 18 types of devices are extensible. It can be scanned according to fixed section (electrode arrangement is AMNB, ABMN, AMBN, AMN, MNB, A-Mn-B, self-charged M, self-charged MN, charging M, charging MN) and continuous rolling scanning measurement according to variable section (electrode arrangement is A-M, A-MN, AB-M, AB) -MN, MN-B, A-MN rectangle, A-Mn-B, cross-hole dipole), among which, continuous rolling scanning measurement can allow the measurement section to be connected to any length under the condition that the total number of electrodes is unchanged, which is convenient for long section tracking, enabling users to solve practical problems at low cost and high time.


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


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OEM Geophysical Exploration Instrument ERT Survey Resisitvity Tomography

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