Chongqing Gold Mechanical & Electrical Equipment Co.,Ltd
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1D VRS Geophysical resistivity meter for geophysical survey
Introduction:
1D VRS (Vertical Electrical Resistivity Sounding)
VES, which stands for Vertical Electrical Sounding, is a geophysical method used to determine the electrical resistivity of subsurface materials to a depth of several hundred meters.
With injected DC current into the ground using a pair of electrodes, usually referred to as the current electrodes. The current is then transmitted into the ground, and the resulting voltage is measured using a pair of electrodes, usually referred to as the potential electrodes. The distance between the current and potential electrodes is gradually increased, and measurements are taken at each distance, The resistance of the subsurface material is calculated from the voltage and current measurements.
Geophysical resistivity meter on ground will generate each measured point's apparent resistivity. Base on different apparent resistivity, we can judge what exist in underground.
Features for WDDS-2C geophysical resistivity meter
1.Light and fexible: advanced transmitter and receiver are designed in one unit, small and portable
2.Up to 6000W of power supply, 48Vp-p voltage range, high precision
3.32-bit micro-controller technology and 24-bit A / D technology
4.Bluetooth technology, wireless remote control: the system is controlled by tablet PC through Bluetooth technology, all operation easy and visiable
5.Improved anti-interference technology and high accuracy
6.USB port enables the instrument to communicate with other computers.
7.Auto compensation of self-potential, drift and electrode polarization
8.Receiver supports transient over-voltage protection for input voltage; transmitter supports over-voltage protection, over-current protection and AB open-circuit protection.
Technical Specifications:
| Maximum transmitting power : | 6000W |
| Maximum voltage: | ±1200V(2400Vp-p) |
| Maximum current: | ±5A(over-current protection) |
| Power supply waveform: | duty cycle is 1:1.bipolar |
| Input impedance: | ≥50MΩ |
| Input voltage range: | ±24V, ±0.5% ±1LSB,24 bit A/D |
| Delay time: | 0.1~5s (programmable) |
| SP compensation range: | ±10V |
| Max current sampling resolution: | 0.02μA |
| suppression: | 8odB for 50Hz or 60Hz (industrial frequency interference) |
| current measurement: | 5A, ±0.2% ±1LSB,24 bit A/D |
| working temperature: | -10°C~+50°℃(Environmental),95 %RH |
| storage temperature: | -20°C~+60C(Environmental) |
| Power supply: | built-in 12V lithium battery(or external 12V power supply),more than 20 hours of continuous work |
| Internal transmitting power :(only WDDS-3) : | Max current is 300mA, |
| Max voltage is 200V | |
| Weight:: | ≤4.2Kg(wDDS-2C); ≤5.5kg(WDDs-3C) |
| Dimension: | 270mm* 246mm* 175mm(WDDS-2C) 350mm*270mm * 200mm(WDDS-3C) |
| Tablet PC: | Windows 10 64 bit operating system,2GB memory,Bluetooh, USB |
Product details:
