Geophysical Electrical Resistivity Tomography Imaging Equipment VES ERT SP IP Survey Instrument
Product Description
Electrical Resistivity Tomography (ERT) imaging equipment is a geophysical technique used for subsurface imaging and exploration. It operates by measuring the electrical resistivity of the ground or structures to create images that depict variations in subsurface properties.
Main Characteristic of Geophysical Electrical Resistivity Tomography Imaging Equipment VES ERT SP IP Survey Instrument
1. By utilizing the apparent resistivity parameters, it is widely used in hydrology, environmental protection, engineering
geophysical exploration, metal and non-metal mineral resources exploration.
2. Easily can observe the apparent resistivity and apparent polarizability at the same time.
3. Measurement and control host can work standalone and it has all the functions of resistivity instrument.
Applications of Geophysical Electrical Resistivity Tomography Imaging Equipment VES ERT SP IP Survey Instrument
• Metal and nonmetal mineral resources detection
• City geophysical exploration, railway and bridge inspection
• Hydrology and engineering geology as seeking for ground water, inspecting dam base and flood protection levee for incipient faults
• Geothermal prospecting
Functions of Geophysical Electrical Resistivity Tomography Imaging Equipment VES ERT SP IP Survey Instrument
• 1D resistivity sounding
• 1D induced polarization sounding
• 2D Resistivity imaging
• 2D IP imaging
The advantages of using ERT include:
High Resolution Imaging:
ERT provides detailed images of subsurface structures and properties, offering insights into geological formations and buried objects.
Non-Destructive and Non-Invasive:
Unlike drilling or excavation, ERT does not disrupt the ground or structures, making it environmentally friendly and cost-effective.
Versatility:
ERT can be applied in various terrains and environments, from urban settings to remote locations, providing valuable data for diverse applications.
Quantitative Analysis:
It allows for quantitative interpretation of subsurface resistivity data, aiding in accurate characterization and modeling.
Time Efficiency:
ERT surveys can cover large areas relatively quickly, enabling efficient data collection and rapid decision-making in field investigations.
Instrument specifications:
| Receiving WDJD-4A |
| Voltage |
± 6 V,±1 % ± 1LSB |
| Measurement accuracy |
if Vp≥10mV, ± 5‰ ± 1LSB; if Vp < 10mV, ±1% ± 1LSB;
if Vp≥10mV, ± 5‰ ± 1LSB; if Vp < 10mV, ±1% ± 1LSB |
| Input impedance |
≥50MΩ |
| Measurement precision of apparent polarizability |
± 1%± 1LSB |
| SP compensation range |
± 10V |
| Current |
6 A,±1% ± 1 LSB |
| Measurement accuracy |
if IP≥10mA, ± 5‰± 1LSB; if IP<10mA,± 1%± 1LSB |
| Suppression |
over 90Db for 50Hz industrial frequency (common mode interference or differential mode interference) |
| Transmitting |
| Maximum transmitting power |
±6600W |
| Maximum voltage |
±1100V |
| Maximum current |
±56A (when voltage ≤900V) |
| Pulse width |
1~60s, duty cycle is 1:1 |
| Others |
| Working temperature |
-10°C~+50°C (Environmental), 95 %RH |
| Storage temperature |
-20°C~+50°C (Environmental) |
| Power supply |
internal 12V 9Ah rechargeable battery , lasts for 30 hours (or 12V external power supply) |
| Overall current |
≤55mA |
| Weight |
≤4.5Kg |
| Dimension (LxWxH) |
270mmx246mmx175mm |
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