Time-Domain Transient Electromagnetics (TDEM/TEM) Equipment Geophysical Resistivity Sounding Instrument for Underground Exploration

• After-sales Service: Provide
• Warranty: 1 Year
• Accuracy: Time Domain Transient Electromagnetic Equipment
• Vertical Lines: Tem Equipment
• Horizontal Line: Transient Electromagnetic Equipment
• Application: Time Domain Tem Exploration Equipment
• Model NO.: TEM
• Type: Tem Exploration Equipment
• Pre-Amplification Gain: 8, 32 Times
• Main Amplification Gain: 1, 2, 4, 8, 16, 32, 64, 128 Times
• Band-Pass: 0~50K Hz
• a/D: 16 Bit
• Minimum Sample Interval: 1μs
• Trace Number: ≤128
• Stacking Times: 1~9999 Time
• Synchronization Mode: Cable Synchronization, GPS Synchronization
• Pocket PC: Windows Mobile 6.0 System with Software
• Wtem-1d Transmitter: Standard
• Transmitting Voltage: ≤200V
• Transmitting Current: ≤50A
• Usage: Time-Domain Transient Electromagnetics (Tdem/Tem)
• Transport Package: Wooden Case
• Specification: Transient Electromagnetic Equipment
• Trademark: GOLD
• Origin: China
• HS Code: 9015800090
• Production Capacity: 500sets/Month

Product Description

Time-Domain Transient Electromagnetics (TDEM/TEM) Equipment Geophysical Resistivity Sounding Instrument for Underground Exploration

Product Description

Transient electromagnetic equipment (TEM) is an instrument for geological exploration using time-domain electromagnetic method (TEM), which has been developed rapidly in recent years.Its application scope involves various fields such as geology and mining, petroleum, water conservancy, electric power, railway, highway transportation, non-ferrous metals, national defense engineering, and has achieved remarkable results.It can be detected in exposed bedrock, cement ground, desert, frozen soil and water surface.The bed cover thickness can be explored effectively.Accurately divide stratum structure and concealed structure;Suitable for shallow groundwater exploration and geothermal water source investigation;Delineation and monitoring of groundwater contamination;Mine goaf detection;It can also be used for dam hidden danger and leakage of channels, reservoirs and other applications.

Why use Transient Electromagnetics (TEM)?

1. Non-destructive, inductive method, of mapping conductivity/resistivity
2. Simple field set-up
3. responsive to, and can differentiate between, conductive bodies
4. Groundwater, mineral deposits and environmental change
5. Suitable for search, mapping and monitoring projects
6. measurement cycles
7. Depths of hundreds of metres can be investigated in minutes and whilst other survey methods would still be setting up

Applications of Time-Domain Transient Electromagnetics (TDEM/TEM) Equipment Geophysical Resistivity Sounding Instrument for Underground Exploration

 

1. Detect aquifers, fault aquifers, coal seam structures and subsidence at ground level
2. Downhole detection of water storage structures in and around the mining area and in front of the driving head
3. To detect the burial depth and occurrence of good conducting ore body, and to detect ore accumulation structure
4. Detection of old kiln and its water content
5. Engineering exploration and environmental exploration
6. Oil and gas field exploration


Specifications of Time-Domain Transient Electromagnetics (TDEM/TEM) Equipment Geophysical Resistivity Sounding Instrument for Underground Exploration
 

	Transmitter
Transmitting voltage	≤200V
Transmitting current	≤50A
Current measurement precision	current range before power supply being cut off is 0~50A, display resolution is 0.01A.
Power supply frequencies	0.0625Hz, 0.125Hz, 0.25Hz, 0.5Hz, 1Hz, 2Hz, 4Hz, 8Hz, 16Hz, 32Hz
Transmitting waveform	+ON, OFF, -ON, OFF, equal width and dual polarity
Turn-off delay time	1μs~1000μs
Turn-off time	≤1.2μs (pure resistance), changing with the transmitting current and transmitting coil when connecting to the coils
Damping resistance	1000Ω
Transmitting coil	0.1km×0.1km single turn ~ 2km×2km single turn
Synchronization mode	external synchronization (cable, GPS)
Power supply	internal 12V8.6Ah rechargeable battery (or external 12V power supply) lasting for over 10 hours
Dimension	525×436×217mm 3
Weight	18.5kg
Working temperature	-10°C~+50°C
	Receiver
Number of channel	1
Pre-amplification gain	8, 32 times
Main amplification gain	1, 2, 4, 8, 32, 64, 128 times
Band-pass	0~50k Hz (liner phased filter), full band-pass 0~400k Hz
Suppression	80dB
A/D	16 bit
Min sample interval	1μs
Trace number	≤128
Stacking times	1~9999 time
Synchronization mode	internal 12V9.6Ah rechargeable battery (or external 12V power supply) lasting for over 10 hours
Pocket PC	Windows Mobile 6.0 system with software such as Word, Excel, etc., 320x240 true color, 64MB Flash Rom/ 64MB SDRAM/64MB 2GB CF card, able to store over 200,000 readings of sampled data,2 original rechargeable batteries
Ports	Bluetooth, infrared and serial port
Dimension	340×295×152mm
Weight	5.3kg
Working temperature	-10°C~+50°C

Standard configuration of WTEM-2 Geophysical TDEM Time Domain Transient Electromagnetic Equipment

01	WTEM-2J TEM Receiver
02	WTEM-2D 15KW TEM Transmitter
03	Win10 Tablet PC to control the TEM system receiver and the system

 Optional instruments:

PTT-40A Antenna & Adapter

WTEM-2T/GPS Synchronized Controller