1D Resistivity Meter Vertical Electrical Sounding For Groundwater Investigation
1D Vertical Electrical Sounding Investigation Geophysical Electrical Resistivity Meter
WDJD-3A Multi-function Digital DC Resistivity/IP Meter can conduct 1D electrical resistivity survey, in association with only power source, electrodes and ordinary cables. In this case, what electrode array applicable is the first 8 electrode arrays introduced in Section One Electrode Arrays of General Electrical Resistivity Survey, namely, four-pole vertical electric sounding(4P-VES), Combined electric sounding(3P-VES), four-pole electrical profiling (4P-PRFL), Combined electrical profiling (3P-PRFL), Rectangle/Middle Gradient (RECT), dipole-dipole (DIPOLE), IP survey in Well-Well Azimuth Sounding(IP-BUR), Five-pole Longitudinal Axis Electical Sounding (5P-VES).Except for access to these electrode arrays, user can also input geometric factor K value directly through Item 9 Input K value for some special electrode array configurations that is not available in system.
Application
- Mineral prospecting in geological surveys - identify potential mineral deposits.
- Groundwater exploration - locate and assess water resources.
- Environmental investigations - identify contamination and remediation sites.
- Engineering projects - determine foundation stability and soil mechanics.
- Archaeological studies - detect buried structures and artifacts.
- Civil engineering - determine soil composition and geotechnical properties.
Technical Parameter
| Receiving Part | |
| Voltage channel | 士 6V,士1 %土 1LSB |
| lnput impedance | >50MQ |
| Apparent polarizability precision |
士1%土 1LSB
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SP compensation range
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士1V
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| current channel |
6A,24 bit A/D
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suppression
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suppression is over 80dB for 50Hz industrial frequency (common mode interference or differential mode interference)
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| Transmitting Part | |
| Maximum transmitting power | 6600w |
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Maximum voltage range
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士1100v
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Maximum current range
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6A
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Voltage channel
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士24A,24 bit A/D
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lnput resistance
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≥50MQ
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Others
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|
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working temperature
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-10°℃~+50°℃,95 %RH
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Storage temperature
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-20°℃~+60°℃
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lnstrument power
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internal 12v rechargeable lithum battery or external 12v car battery, for 30 hours continously work
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overall current
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≤55mA
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weight
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≤4.4Kg
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Dimension (L×WXH)
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270mm * 246mm* 175mm
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Main Features and Functions
- Transmitting unit and receiving unit are of all-in-one design, portable and lightweight.
- CMOS large-scale integrated circuit, special stand-by mode, compact size, low power consumption.
- System turns off WDJD-3A mainframe automatically if there is no operation in 10 minutes.
- High anti-interference performance and precision, integrated with multistage wave filtration and signal enhancement technologies.
- In good condition, multi-electrode imaging function can complete measurement of a 552-data-points cross section.
- Automatically achieving compensation of self-potential, drift and electrode polarization.
- Receiving unit supports transient over-voltage protection, transmitting unit supports
- Over-voltage protection, over-current protection and AB open-circuit protection.
- Measured curve can be plotted through WDJD-3A mainframe.
- Simple calculator fulfills calculation of geometric factor and other calculations on the spot.
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