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GT-VDE variable depth electrical imager

The GT-VDE variable depth electrical method imager is centered on advanced signal generator and sampling technology, and adopts a software-controlled all-digital design to realize the function of multi-channel synchronous acquisition, and adds wireless data transmission, hardware and software automatic filtering, software delay, software adjustable signal frequency or cycle number, standard IEEE802.11 communication protocol, automatic SIP all parameter setting and other functions. More convenient to use, faster operation, no need to set or adjust too many parameters. Any computer device with WLAN function can be used as display, processing and storage, such as portable computer and tablet computer, and the continuous working time can reach more than 8 hours.

Classification:

Sales Hotline:

Detailed description

Product use:

◆ Environmental geological survey of underground soil and water pollution;

◆Geological survey of karst cavity landslide and other disasters;

◆Urban underground space structure distribution and stability evaluation;

◆ Groundwater survey;

• Archaeology;

◆ Detection of the dripping range of the landfill site;

_Detection of leakage and cavity in dam embankment of reservoir and river;

◆Metal mineral exploration

◆Coal field goaf detection

Product features:

◆ High-density measuring point layout, high-precision anomaly identification, high-efficiency data acquisition.

◆ High-power variable voltage power supply, large exploration depth, variable target layer depth, and effective detection range of 0~400m.

◆ Strong ability to resist power frequency interference and stray current, which greatly improves the effect of urban electrical prospecting.

◆ With equipment self-inspection, at any time to grasp the working status of the instrument.

◆ Special new type of special alloy micro-polarized electrode, with small range and high signal-to-noise ratio.

◆ Many parameters (), improve the ability of comprehensive interpretation of anomalies.

Performance parameters:

Model		GT- SIP Spectrum Exciter
Main controller	Main control unit	Windows system, military notebook control
	Storage capacity	1T
	Power supply mode	Host built-in high-performance lithium battery, power supply for more than 72 hours
	Voltage measurement range	±30V
	Measurement accuracy	± 0.1 when Vp>5mV; ± 0.05 when Vp<= 5mV
	Current measurement range	5A
	Current measurement accuracy	±0.05%
	50Hz power frequency suppression	100dB
	Working temperature	-20 ℃ ~ 55 ℃
	Volume	340 × 210 × 250mm
	Weight	3.5kg
Transmitter	Transmitter maximum power	3kW/5kW/10kW optional
	Emission voltage	100~600V (customizable 1~1000V)
	effective supply current	0.5~5A
	Maximum exploration depth	>400m
	Working temperature	-20 ℃ ~ 55 ℃
	Volume	350 × 300 × 350mm
	Weight	15kg

(Note: the parameters are for reference only, customized products can be adjusted according to customer needs)

Configuration list:

Serial Number	Name	Quantity	Remarks
1	GT- VDE Host	1	With power adapter
2	Transmitter	1	3kw
3	96V power supply lithium battery	1	With power adapter
4	Transmitting end power supply cable	2 Articles	/
5	Receiving cable at receiving end	1 Article	/
6	Pole Distance Extension Line	8	/
7	Electrodes	12	Spare 3
8	Ground electrode	1 root	/
9	Communication line	3 Articles	Host-PC 1; Host-Transmitter 2
10	U disk	1 only	Including acquisition software, general analysis software, training documents, etc.

(Note: the parameters are for reference only, customized products can be adjusted according to customer needs)

Engineering case:

During the investigation of a railway subgrade, in order to find out the development of unfavorable geological bodies of a railway subgrade in a limestone area, two parallel survey lines were laid along the direction of the railway track by variable depth electric method, with a parallel distance of 5m. The exploration results and description of some drill cores are shown below.
It can be seen from the logarithmic contour map of the apparent resistivity of the east and west measurement lines that the overall apparent resistivity of the measurement area is low on the left and high on the right, thus the red line area in the delineation map is the dissolved fissure zone, and the right side is the complete bedrock area, and the results of the two measurement lines are almost the same;
It can be seen from the contour map of video dispersion rate of the east and west lines that the yellow coil fixed area in the map is a high frequency dispersion (>0.2) area, and all correspond to low resistivity, which is inferred to be a karst development area. In addition, before the groundwater level in the survey area and behind the clay layer, it is inferred that the karst cave is filled with soft clay.
The description of some drill cores in the survey area is consistent with the exploration results.

Results and interpretation:

Key words:

GT-VDE variable depth electrical imager