Multi- function Terrameter Geophysical Survey Equipment
Introduction
This geophysical survey equipment is multifunction, it will measure
various parameter such as voltage, current, apparent resistivity,
apparent polarizability, natural potential, self electric gradient,
half decay, attenuation, excitation ratio, deviation, metal factor,
ground resistance and voltage decay curve.
The geophysical equipment with Intelligent control,the curves and
data will display in screen on real time. It will work for 1D VES
(Vertical Electrical Sounding), 2D Electrical Resistivity tomograph
and 3D IP imaging.
The Geophysical Equipment will work together with resistivity
cable, electrode, software. 2 person work together, one is operate
instrument, and another for cable array.
Usage
The survey instrument as following :
Seismic Surveys. ...
Ground-Penetrating Radar. ...
Magnetic Surveys. ...
Radiometric Surveys. ...
Gravity Surveys. ...
Induced Polarity (IP) Surveys. ...
Electromagnetic (EM) Surveys. ...
Down Hole Surveys.
Specification
| Index | Geological Surveys Resistivity Meter |
| Receiver | Full waveform record of current and potential |
| Measuring voltage range | ±40V 32 A/D |
| Measuring voltage resolution | 5nV |
| Measuring voltage accuracy | Voltage >1mV, accuracy ≤0.1%, voltage ≤1mV, accuracy±1uV |
| Apparent polarizability accuracy | Fs. error≤±0.2% |
| Measuring current range | 0 -6000 mA(32 A/D) |
| Measuring current resolution | 10nA |
| Measuring current accuracy | When Ip≥10mA,±0.1%, when Ip<10mA,accuracy ±2uA |
| Sample frequency | 1KHz |
| Input impedance | ≥50MΩ |
| Suppression of 50Hz power frequency interference | >120dB |
| SP compensation | ±40V Full range real-time automatic tracking digital compensation |
Certificate
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