1D 2D Electric Sounding and Electrical Profiling Geophysical
Resistivity Meters
The WGDM-3 Geophysical Resistivity Meters are a versatile tool for
geophysical surveys that offers several useful features. Some of
these features include:
1.Multiple electrode arrays: With 18 types of electrode arrays
available, the device can be customized to suit different survey
needs.
2.Extendable cross-section roll-along scan measurement: This
feature allows for long cross-section surveys to be conducted
without adding more electrodes. It is a cost-effective and
efficient solution for solving geologic problems.
3.Schedule memory: The device can store up to 100 groups of
electrode distances, which can be recalled using a schedule ID and
set step. This feature avoids repetitive input and saves time.
4.Earth resistance inspection: The device allows for earthing
conditions to be inspected at any time, ensuring accurate and
reliable measurements.
5.Mass data storage: The WDJD-3A has ample storage capacity, with
the ability to memorize 3500 readings of data for resistivity and
SP survey, 2500 readings of data for induced polarization
(chargeability) survey, and 43680 readings of data for
multi-electrode 2D resistivity imaging. This feature enables large
amounts of data to be collected and analyzed for comprehensive
geophysical surveys.
Application for WGDM-3 Geophysical resistivity meters
1.Groundwater Exploration:
Basin delineation
Karst investigations
Fracture mapping
2.Groundwater Protection:
Plume mapping
Salt water intrusion
Contaminant source identification
Groundwater vulnerability assessment
3.Hydrogeologic Assessments:
Aquifer storage and recovery monitoring
Pump test monitoring
Geothermal reservoir mapping
Mapping perched water zones
Assessing cross-aquifer interactions
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 |
Detect Image Display
