System can conducts:

•   Self-potential survey

•   General resistivity/IP VES survey

•   Multi-electrode 2D resistivity imaging

•   Multi-electrode 2D induced polarization (IP) imaging

•   Multi-electrode 3D resistivity imaging

Typical 1D resistivity sounding surveys usually involve about 10 to 20 readings, while 2D imaging surveys involve about 100 to 1000 measurements. In comparison, a 3D survey might involve several thousand measurements.

Applications:

•   Energy resource

•   City geophysical exploration

•   Railway and bridge prospecting

•   Metal and non-metal mineral resources prospecting

•   City geophysical exploration

•   Hydrology and engineering geology to inspect base of dam and flood protection levee for incipient faults

•   Geothermal survey

•   Landslides and other geological disaster exploration

•  High power supply, wide current range, high accuracy: maximum power reaches 9000W (1500V×6A), voltage input is 64Vp-p, small signal measurement precision is high (voltage is less than 0.1mV and current is less than 0.1mA with ±1% measurement precision), both of which make WDA-1/WDA-1B main frame an ideal device for regions of high resistivity and to achieve better measured results.

•   On its panel there is an “B(∞)” port for pole-pole and dipole-pole electrode array. As to dipole-pole array configuration, ResA, ResB, and Res can be measured automatically with high efficiency and fewer errors.

•   16 kinds of electrode arrays of multi-electrode system: In addition to the 10 electrode arrays of general electrical resistivity survey system, there are 16 electrode arrays for multi-electrode imaging, namely, Wenner Alpha array (WENNER α), Wenner Beta array (WENNER β), Wenner Gamma array (WENNER γ), Three-pole direct array (δA ARRAY), Three-pole reverse array (δB ARRAY), Wenner Alpha 2 array (SCHLMBG), Self-Potential M array (SP-M), Self-Potential MN array (SP-MN), Charging M (CHG-M), Charging MN (CHG-MN), Two-pole Roll along array (2P AM), Three-pole Roll along array (3P A-MN and 3P AB-M), Dipole-dipole Roll along array (DIPOLE), MN-B, Cross-Hole Dipole/Equatorial Dipole-dipole array (CR-DIPOLE).

•   Extendable system: data sampling and storing are controlled by pocket PC. Data management is easy. Software is flexible to be upgraded and extended (extending data storage capacity and collection software functions, also extend to special multi-electrode electrical instrument).

•   Excellent anti-interface performance: integrated with multistage filtration and signal enhancement technologies and suppresser against common mode interference and differential mode interference. Measurement precision is high.

•   Automatically achieving SP, drift and electrode compensation (maximum compensation reaches ±10V).

•  Receiving unit supports transient over-voltage protection for input voltage; transmitting unit supports ov

ID sounding data & curve                                        2D data curve

2D resistivity imaging interface                                3D imaging survey interface