Time-Domain Electromagnetic Survey Instrument Transient Electromagnetic Equipment for Underground Water and Mineral Exploration Device

• Customization: Available
• Accuracy: Tem Equioment
• Horizontal Line: Transient Electromagnetic Equipment
• Model NO.: WTEM
• Vertical Lines: Transient Electromagnetic Equipment
• After-Sales Service: Provide
• Warranty: 1 Year, 1 Year
• Touch Screen Resolution: Tem Transient Electromagnetic Equipment
• Humidity: Tem Transient Electromagnetic Equipment
• Data Storage: Tem Transient Electromagnetic Equipment
• Channel: Tem Transient Electromagnetic Equipment
• Frequency: Tem Transient Electromagnetic Equipment
• Power Frequency Suppression: Tem Transient Electromagnetic Equipment
• Detection Depth: Tem Transient Electromagnetic Equipment
• Main Amplification Gain: 1, 2, 4, 8, 16, 32, 64, 128 Times
• Synchronization Mode: Cable Synchronization, GPS Synchronization
• Applications: Geological Study, Groundwater, Tunnel, Mining
• Transmitter: 15kw
• Function: Tem Exploration
• Usage: Tem Transient Electromagnetic Equipment
• Transport Package: Standard Export Plywood Case
• Specification: CE, SGS, ISO9001
• Trademark: Gold
• Origin: Chongqing, China
• HS Code: 8430412900
• Production Capacity: 100 Sets Per Month

Product Description

Time-Domain Electromagnetic Survey Instrument Transient Electromagnetic Equipment for Underground Water and Mineral Exploration Device

Product Description

WTEM-2 Medium-Deep/Deep TEM Exploration System (hereafter also refer to as WTEM-2 system or system) applying to medium-deep/deep transient electromagnetic exploration, is one of our latest researches with all functions of transient electromagnetic survey system. It boasts high power, short turn-off time, high reliability, strong anti-interference performance (against atmospherics, 50Hz or 60Hz industrial frequency interference), lightweight and low power consumption.

Standard configuration of Time-Domain Electromagnetic Survey Instrument Transient Electromagnetic Equipment for Underground Water and Mineral Exploration Device

1. WTEM-2J TEM Exploration System Receiver
2. WTEM-1D 10kw High-Power Transmitter
3. WTEM-2T/GPS Transmitter Synchronized Controller
4. Pocket PC (PDA) to control the TEM system receiver and the system.

Optional instruments:

1. PTT-40A Antenna & Adapter

WTEM-2J receiver has to work together with a WTEM-1D transmitter to finish medium-deep or deep sounding; in the mode of GPS synchronization, a WTEM-2T/GPS synchronized controller is needed to synchronize WTEM-2J receiver and the transmitter.
PTT-40A Receiver Antenna & Adapter is a specific antenna (or receiving coil) designed for TEM system receiver, which consists of an detached antenna and adapter, with large equivalent area and high signal-to-voice ratio, easy for field layout and free from limitation of landform.
Loop applicable may be central loop or coincident loop, one TEM system transmitter working together with one TEM system receiver; or be large loop, one TEM system transmitter in association with several TEM system receivers. According to different geological situations, user could choose an appropriate system to finish surveying tasks of quick general survey, 3D graph coloring up, deep mine finding.
It is mainly used for surveying metal mine, coal-mine, oil and gas field, geothermal field, and applies in hydrology and engineering geological prospecting as well.



Technical Specifications of Time-Domain Electromagnetic Survey Instrument Transient Electromagnetic Equipment for Underground Water and Mineral Exploration Device
 

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

Main Functions and Features of Time-Domain Electromagnetic Survey Instrument Transient Electromagnetic Equipment for Underground Water and Mineral Exploration Device

1. All-round optimization of WTEM-2J receiver: Except for the power switch, all operations are carried out in pocket PC through Bluetooth.
2. Improved WTEM-2T/GPS transmitter synchronized controller: a better GPS module and antenna with higher sensibility, faster in synchronization speed, compacter in size and lighter in weight.
3. Support several synchronization mode: 
   1. 1.  cable synchronization
      2.  GPS synchronization
      3.  "GPS + Clock" synchronization (optional)

When GPS satellite signal is very weak or disappears, the quartz crystal will perform synchronization with error less than 1μs/hour.

The latter two synchronization modes require a WTEM-2T/GPS synchronized controller. Once start up, it only takes no more than 2 minutes to get the transmitter and the transmitter synchronized if satellite signal is good.

1. High reliability, low power consumption: refined receiver and circuitry, sealed and rugged mechanical structure, ensuring high reliability, low power consumption and convenient operation.
2. Wide range of sounding depth: WTEM-1D transmitter can help to perform medium-deep or deep exploration in tens of meters to thousands of meters.
3. Remote control: pocket PC and Bluetooth wireless communication technology enable to operate the WTEM-2J receiver in 10 meters, such as setting up parameters, starting measuring, transferring and displaying the measured results.
4. High anti-interference performance: program controls the filter to give accurate power supply frequency; besides, data stacking and software filtration also do good to this performance.
5. Multiple channels, high measurement accuracy: operator could set number of channel, linear or logarithmic; crystal oscillator accomplishes timing, with stable and precise time-to-depth ratio. Sampling window arrangement is reasonable, imaging the true subsurface structure. It provides references to complex geological problems.
6. Short turn-off time: transmitter support swift turn-off function, able to extend shallow exploration range. Short turn-off function provides software with accurate turn-off time to enable it to give accurate data.
7. Case Study: Groundwater Exploration in Arid Regions In arid regions, water is a critical resource, and TEM has been successfully used to identify and map groundwater aquifers. In areas where traditional methods like drilling are expensive or impractical, TEM provides an effective means of identifying the depth, extent, and quality of groundwater resources. In one notable case, TEM was used in the western United States to locate deep groundwater reserves in desert regions, helping to optimize water extraction strategies.

Some Case in Use of Transient Electromagntic Device:

Case Study: Groundwater Exploration in Arid Regions In arid regions, water is a critical resource, and TEM (Transient electromagnetic equipment)has been successfully used to identify and map groundwater aquifers. In areas where traditional methods like drilling are expensive or impractical, TEM provides an effective means of identifying the depth, extent, and quality of groundwater resources. In one notable case, TEM was used in the western United States to locate deep groundwater reserves in desert regions, helping to optimize water extraction strategies.

Case Study: Mineral Exploration in Canada In northern Canada, TEM (Transient electromagnetic equipment)has been used extensively in mineral exploration, particularly for identifying potential diamond-bearing kimberlite pipes. A project in the Canadian Shield demonstrated the ability of TEM to detect resistivity anomalies related to kimberlite, a key indicator of diamond deposits. The technique helped in narrowing down the areas for drilling, significantly reducing exploration costs and time.