2D Imaging Geophysical Exploration Instrument for Metal and Water
Detection
Electrical exploration is a geophysical exploration method to find
different types of useful mineral deposits, identify geological
structures and solve geological problems by observing and studying
the spatial distribution and temporal characteristics of artificial
or natural electric fields, electromagnetic fields or
electrochemical fields according to the differences of
electromagnetic properties (such as conductivity, magnetism,
dielectric) and electrochemical characteristics of various rocks or
orebodies in the crust.
Applications
The geophysical exploration instrumetn can be used in energy
exploration and civil geophysical prospecting, railway and bridge
survey, mental and non-mental mineral survey. This geophysical
instrument can also be used in hydro- and engineering geology
survey, such as underground water, water reservoir dam site, flood
control dam hidden trouble detection, and geothermic field survey.
Electrode arrangement
Up to 18 types of devices are extensible. It can be scanned
according to fixed section (electrode arrangement is AMNB, ABMN,
AMBN, AMN, MNB, A-Mn-B, self-charged M, self-charged MN, charging
M, charging MN) and continuous rolling scanning measurement
according to variable section (electrode arrangement is A-M, A-MN,
AB-M, AB) -MN, MN-B, A-MN rectangle, A-Mn-B, cross-hole dipole),
among which, continuous rolling scanning measurement can allow the
measurement section to be connected to any length under the
condition that the total number of electrodes is unchanged, which
is convenient for long section tracking, enabling users to solve
practical problems at low cost and high time.
Technical specification
Receiving part
| |
Voltage channel:
| ±6V |
Measurement accuracy:
| Vp≥10mV时,±0.5% ±1 character Vp< 10mV时,±1% ±1 character |
Input resistance:
| > 50 MΩ |
Apparent polarizability measurement accuracy:
| ±1% ±1character |
Sp compensation range:
| ±1V . |
Current channel:
| 5A |
Measurement accuracy:
| Ip≥ 10mA时,±0.5% ±1character Ip< 10mA时,±1% ±1character |
The suppression of 50Hz power frequency interference (common mode
interference and differential mode interference) is better than 80dB
| |
Launch part
| |
Maximum transmit power:
| 4500W |
Maximum supply voltage:
| ±900V |
Maximum supply current:
| ±5A |
Power supply pulse width:
| 1~60 seconds, the duty ratio is 1:1
|
| Other | |
Operating temperature:
| -10°C~ +50°C, 95%RH |
Storage temperature:
| -20°C~ +60°C |
Instrument power supply:
| No. 1 battery (or nickel-cadmium battery of the same specification)
8 pieces
|
Current current:
| ≤55mA |
| Weight: | ≤7KG |
Volume:
| 310mm*210mm*210mm |
WDZJ-3 multi-channel electrode converter
| |
Converting the number of electrodes:
| 60 road
|
Insulation properties:
| ≥500 MΩ |
Maximum working voltage:
| 450 VDC |
Maximum operating current:
| 2.5 ADC |
Instrument power supply:
| No. 1 battery (or nickel-cadmium battery with the same
specification) 8 pieces
|
Operating temperature:
| -10°C~ +50°C |
