Ultra High Density Electrical Measuring Instrument

Ultra High Density Electrical Measuring Instrument
Ultra High Density Electrical Measuring Instrument
Ultra High Density Electrical Measuring Instrument
Ultra High Density Electrical Measuring Instrument
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With a full wave DC electrical method instrument as main controller, the ultra-high density electrical measuring instrument can be equipped with distributed high density cables and electrodes to conduct measurement of distributed 2D, 3D high density resistivity and induced polarization. The instrument can also be equipped with MIS-60A array centralized multiple electrode convertor, centralized high density cables and electrodes to conduct centralized 2D, 3D high density resistivity and induced polarization.

As part of DC electrical method, high density electrical method can observe apparent resistivity and polarizability and then form 2D/3D sections of apparent resistivity and polarizability. The high density electrical measuring instrument can collect high-density data and perform efficient and accurate measurement. It can directly and accurately demonstrate the abnormal electrical property distribution of underground objects.

Specification 1. Full wave DC electrical method instrument
Receiver
Measuring voltage range ±40V (32bit A/D)
Measuring voltage resolution 5nV
Voltage measure accuracy When U>3mV, accuracy≤0.1%;
when U≤3mV, accuracy=±1uV
Apparent polarizability accuracy Relative error≤±0.2%
Measuring current range 0 -6000 mA (32bit A/D)
Measuring current resolution 10nA
Current measure accuracy When Ip≥10mA,±0.1%
Input impedance ≥50MΩ
Input protection voltage 1000V
Interference Suppression on 50Hz Power Frequency >120dB
SP compensation range ±40V(real-time automatic digital compensation at the whole range)
Transmitter
Maximum power supply voltage 1400V
Maximum power supply current 6A
Maximum power 7500W
Power supply time 1-64s
Power suspension time 1-64s
Protection Overvoltage & overcurrent
Others
Processor ARM Cortex-A8
Operation system Embedded Linux real-time system
Screen 6.4-inch 24bit true-color LCD
LCD brightness 1200cd/m2, visible in daylight
Storage capacity 16G-128G optional
Data Transmission USB 2.0
Battery capacity 16.8V 12.5Ah, continuously working for 16h
Power interface External battery or adapter
Waterproof level IP66
working temperature -10-+50℃
Volume 300 x 225 x 132 mm
Weight 5.6Kg
2. Distributed high density resistivity cable
Number of electrode boxes 10 electrodes/cable(5-256 electrodes/cable optional)
Distance between electrode boxes 5m and 10m (1-20m optional)
Power supply 1000V/4A
Power supply impedance 50Ω/km
Diameter 6mm
Weight 4kg (10 electrodes/cable,10m/electrode)
Tensile strength 2000kN
Insulation ≥1000MΩ/1000V (between AB power supply line and low voltage lines)
Waterproof level IP67 (waterproof, dustproof, rainproof)
Electrode box volume Φ17mm*62mm(electrode), Φ 24mm*158mm (maximum volume)
Electrode box compression strength 50Kg/cm²
Switch lifespan 100,000 times
Electrode box power consumption 18mW
Coding Automatically coding
Cascade connection Random cables
Receive and transmit electrode Automatically separation/closure (resistivity and polarizability can be chosen automatically)
Working temperature -20℃~+60℃
3. MIS-60A multiple electrode convertor
Convertor 60 electrodes/convertor
Power supply 800V/4A
Coding Automatically coding
Cascade connection Random cascade connection through multiple electrode convertor
Working temperature -20℃~+60℃
Volume 27×24.6×12.4cm
Weight 2.6kg
Centralized high density cable
Number of electrodes 30 electrodes/ cable
Distance between electrodes 5m/10m (customization available)
Insulation ≥500MΩ/1000V (between AB power supply line and low voltage lines)
Waterproof level IP67 (waterproof, dustproof, rainproof)
Material Polyurethane sheath
Outer diameter 7mm
4. MIS-10A multiple electrode convertor
Convertor 10 electrodes/ convertor
power supply 800V/4A
Coding Automatically coding
Cascade connection Random cascade connection through multiple electrode convertor
Working temperature -20℃~+60℃
Volume Φ46mm*218mm
Weight 0.4kg
Cascaded high density cable
Number of electrodes 10 electrodes/ cable
Distance between electrodes 5m/10m (customization available)
Insulation ≥500MΩ/1000V (between AB power supply line and low voltage lines)
Waterproof level IP67 (waterproof, dustproof, rainproof)
Material Polyurethane sheath
Outer diameter 7mm
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