Geographic Resistivity Survey Instrument for Geophysical Exploration
Main Application
WDA-1 digital DC electrical instrument is applicable to a wide range of fields, including but not limited to mineral resource exploration, energy exploration, geothermal exploration, urban geophysical exploration, railway bridge exploration, hydrogeological exploration, finding groundwater, solving industrial and agricultural water and domestic water problems, environmental geological exploration, finding fault zones, collapse columns, goafs, landslides and other geological disasters detection, engineering geological exploration and many other aspects.
1.This instrument is small and lighr to carry.It's main technique specifications and functions are more advantage than similar instruments abroad and inland can be applied in different complex regions.
2.It has been applied widely in metal and non-metal mineral propecting,civil propecting,railway,bridge detecting,etc.
3.It can also be applied in underground water,water reservoir da foundation,jetty hidden trouble,and geothermal exploration.
Product Parameters
| Receiving part |
| Voltage channel |
±32V(24biteA/D) |
| Measurement accuracy |
Vp≥5mV,±0.2%±1character,0.1mV≤Vp≤5mV,±1%±1character |
| Input impedance |
>50MΩ |
| Apparent polarization accuracy |
±1%±1character |
| SP compensation range |
±10V |
| Current channel |
6A(24biteA/D) |
| Measurement accuracy |
Ip≥5mA,±0.2%±1character,0.1mA≤Vp≤5mV,±1%±1character |
| As for 50Hz industrial interface |
better than 80dB |
| Rransmitter part |
| Maximum power |
7200W |
| Maximum supply voltage |
±1200V |
| Maximum supply current |
±6A |
| Supply current width |
1~60s,dyty rate 1:1 |
| Other |
| Working temperature |
-10ºC~50ºC,95%RH |
| Storage temperature |
-20ºC~+60ºC |
| Power supply |
built-in 7.4VAh,lasting for 20h |
| Main unit port |
A,B,MNDC high voltage,outside battery,2 cable port,RS-232,blue tooth |
| Weight |
≤4kg |
| Dimension |
270mmx246mmx123mm |
Main features
- **Compact & Portable Design**: Meet the WDA-1 Super Digital DC Resistance Meter-your ultimate travel companion! Its small size makes it a breeze to carry around, ensuring that you're always ready for any exploration challenge that comes your way.
- **Unmatched Performance**: With advanced technology that surpasses both domestic and international competitors, the WDA-1 is designed for excellence. Tackle even the most complex terrains with confidence, knowing you have the best resistivity meter at your side!
- **Versatile Applications**: Ideal for a wide array of uses, this resistivity meter excels in metal and non-metal mineral exploration, civil engineering surveys, and investigations for railways and bridges-making it a must-have tool for professionals in various fields.
- **Perfect for Environmental Studies**: Whether you're assessing groundwater, evaluating reservoir foundations, or checking for coastal defense risks, the WDA-1 delivers reliable results in geothermal investigations. It's your go-to instrument for all underground exploration needs!
- **Outstanding After-Sales Support**: Your satisfaction is our priority! With the WDA-1, you not only get a top-notch resistivity meter but also exceptional customer service and technical support to ensure consistent performance and longevity-exploration just got easier!
Working principle
The working principle of WDA-1 digital DC resistivity instrument is based on high-density resistivity method, which is an array exploration method, also known as automatic resistivity system. It is the development of DC method and its function is equivalent to the combination of quadrupole electrical depth sounding and electrical profiling method. The physical premise of high-density resistivity method is the difference in conductivity between underground media. This method is based on the difference in electrical properties of rock and soil bodies. It infers the occurrence of geological bodies with different resistivities underground by the distribution law of the conductive current in the ground under the action of an applied electric field. Specifically, the current I is supplied to the ground through the A and B electrodes, and then the potential difference ΔV is measured between the M and N electrodes, so that the apparent resistivity value of the point (between M and N) can be obtained.ρ=KΔV/I
According to the measured apparent resistivity profile, calculation and analysis can be performed to obtain the resistivity distribution in the underground strata, and then the strata can be divided and anomalies can be determined.
Product details
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