Dipole-Dipole Geophysical Equipment For Deep Underground Investigations
Introduction
Geophysical equipment use different method to do underground exploration. Common method will be electrical resistivity, induced polarization, seismic exploration and magnetic exploration. After that, it will drilling to get core sample.
The exploration concept looks for a package of unique stratigraphic age, promising favorable rocks, and type structure to host certain groups of minerals.
Features of geophysical instruments:
data sampling and storing are controlled by tablet PC.
Data management is easy.
Software is flexible to be upgraded and extended
Bluetooth technology facilitating wireless remote control
High power supply, wide current range, high accuracy
Resources Prospecting
Engineering Geology Exploration
Specification
Receiving part | |
Voltage channel | ±32V(24 bit A/D) |
Measurement accuracy | Vp≥5mV, ±0.2% ±1 character, 0.1mV≤Vp<5mV, ±1% ±1 character |
Input impedance | >50MΩ |
Apparent polarization accuracy | ±1%±1character |
SP compensation range | ±10V |
Current channel | 6A(24bit A/D) |
Measurement accuracy | Ip≥5mA, ±0.2% ±1character, 0.1mA≤Ip≤5mA, ±1% ±1 character |
As for 50Hz industrial interface(common and different mode)depression | Better than 80dB |
Transmitter part | |
Maximum power | 7200W |
Maximum supply voltage | ±1200V |
Maximum supply current | ±6A |
Supply current width | 1~60s, duty rate 1:1 |
Others | |
Working temperature | -10℃~+50℃, 95%RH |
Storage temperature | -20℃~+60℃ |
Power supply | Built-in 7.4V4Ah(or outside 12V), lasting for 20h |
Main unit port | A, B, M, N, DC high voltage, outside battery, 2 cable port, RS-232, blue tooth |
Weight | ≤4kg |
Dimension | 270mm*246mm*123mm |
Pocket PC | |
Windows mobile 5.0 system, 624MHz, 640*480 true color, 128MB Flash ROM /64MB SDRAM, 512MB CF card, blue-tooth, infrared, serial port, 2 rechargeable batteries, with Word, Excel. |
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