500m Underground Electric Resistivity Mapping Water Minerals Exploration Transient Electromagnetics System

Product Description

Product Description

WTEM-2D Transient Electromagnetic Electric Resistivity Inversion System

  WTEM-2D is a Time-domain transient electronagmetic system which is to measure the underground electric resistivity data. It is developed based on the Principle of Electromagnetic Induction. By transmitting an electromagnetic pulse into the ground and then shutting it off, observing the resulting secondary magnetic field as it decays over time. It is helpful to identify features like groundwater or pollution without direct contact with the ground. 
  Compared with multi-electrodes electric resistivity tomography, 
TEM has significant advantages in depth, resolution and operation. Using a high power transmitter, it is cabple to reach 1,000 meters depth, and its resolution is better at the same depth. Besides, users only need to lay out a coil and start survey, saving much labours and time.

Main Features

* High Power Transmitter:
By using WTEM-2D 15KW large power transmitter, it can easily reach to deep layers and get strong recovered signals.
* 2 Synchronization Modes Available:
Cable synchronization or GPS synchronization mode is available for deep layer electric resistivity investigation.
* Rapid Shutdown Function of Transmitter:
Rapid shutdown is fundamental to transient electromagnetic measurements, the working principle of TEM is based on alternating current.
* Highly Resistant to Interference:
Programmable hardware filters, unique and precise power supply frequency, data overlay, and software filtering endow the instrument with exceptional interference resistance.
* Multi-Channel, High Measurement Accuracy:
The number of measurement channels can be configured by the operator, supporting both logarithmic and linear distributions. Timing is achieved using a high-precision crystal oscillator, ensuring stable and accurate time-depth relationships. The measurement subsample window distribution is well-designed to accurately reflect subsurface information, laying the foundation for solving various complex geological problems.

Details Display

Technical Specifications

WTEM-1D 10KW Large Power Transmitter
Transmitting voltage	200V
Transmitting current	50A
Current measurement precision	1%
Power supply frequencies	0.0625Hz, 0.125Hz, 0.25Hz, 0.5Hz, 1Hz, 2Hz, 4Hz, 8Hz, 16Hz, 32Hz
Transimitting power voltage display	Liquid crystal display unit V, display resolution 0.1V.
Working temperature	-10ºC~50ºC

WTEM-2J GPS TEM Exploration System Receiver
Channel Number	1
Pre-amplifier gain	8, 32 times
Main ampilerfier gain	1,2,4,8,16,32,64,128 times
Band pass	0~50kHz(liner phased filter), full band 0~400kHz
A/D bit	16 bit
The minimum sample interval	1µs
Crystal oscillation total error	<=5*10^-9
Trace number	50
Stack number	1~9999
Synchronization mode	1. cable synchronization 2. GPS synchronization
Power supply	Built-in 12V rechargable battery(support outside power), working time>10 hours
Working temperature	-10ºC~50ºC

About Us

Chongqing Gold Mechanial & Electrical Equipment Cp., Ltd

  Chongqing Gold Mechanial & Electrical Equipment Cp., Ltd locates in Chongqing, China, is a large-scale integrated foreign trade and production company. Established in 2009, We have expanded our products from purely geological exploration products to include geophysical equipment accessories, e.g geophone, seismic, resistivity cable, borehole camera, water level meter, drilling rig, air compressor, inclinometer and so on. 

Be as a high-tech enterprise and with more than 15 years of experience in foreign trade, We are ready to respond to the opportunities and challenges in the marketplace.