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Easylocator

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ABEM Walktem geological near-surface tool

ABEM WalkTEM provides an intuitive user interface combined with stunning performance, making it a powerful tool for surveys in the geological near-surface.
​Applications include groundwater and mineral exploration and environmental investigations.

The Transient Electromagnetic (TEM) method
TEM offers good penetration of conductive overburden and is increasingly popular for hydrogeological purposes as well as general geological mapping and mineral exploration. Since there is no requirement for galvanic ground contact, data can be collected in high resistivity surficial zones and in areas covered by ice or exposed rock.

Advanced TEM made easy
ABEM WalkTEM is derived from the airborne SkyTEM helicopter system, sharing the technology. While SkyTEM covers large areas, ABEM WalkTEM offers more accurate resolution of fine details in geology. With a set of predesigned protocols, ABEM WalkTEM quickly switches between different tasks. A variety of transmitter loop sizes provides good scalability for the project at hand.

Data collection is complete in a few minutes
With its unique acquisition technology, ABEM WalkTEM accurately resolves a wider span of signals, covering both deep and more near-surface data in one go, greatly improving field survey efficiency. A high level of integration means less carrying and setup. Powerful on-board processing software takes the guessing out of field surveys as a resistivity layer model can be produced within a minute after a measurement has been conducted.

NEW BOOSTER OPTION
ABEM TX-60 is an optional external booster that further widens the ABEM WalkTEM’s application area, enabling even deeper soundings with even larger transmitter loops. Like the ABEM WalkTEM instrument, the ABEM TX-60 is designed for demanding field work under rough field conditions, housed in a rugged aluminum case that meets IEC IP 66.
The ABEM TX-60 booster interacts with the ABEM WalkTEM system via a communication cable and the units are totally isolated from each other. Control power is supplied from an internal rechargeable battery and transmitter power is supplied from an external DC power source.
The ABEM TX-60 outputs a massive 60 Amperes, handles up to 250 V DC input voltage and is synchronized with the ABEM WalkTEM system during transmission.
PRODUCT FEATURES
  • Built-in Windows computer and integrated GPS
  • Sunlight visible LCD with graphical user interface
  • A variety of transmitter loop sizes are available
  • On-board data processing software
  • ViewTEM processing software is offered as a powerful option for further data editing and processing in the office.
  • Fully compatible with Aarhus Workbench for further visualization
TYPICAL APPLICATIONS
  • Groundwater prospecting
  • Geological mapping
  • Salinity studies
  • Mineral exploration
System configuration
The ABEM WalkTEM system integrates a high current transmitter and a dual channel wide bandwidth receiver in one rugged box, which also contains an integrated PC and dual internal batteries. The system is complete with two models of low noise receiver coils; one optimized for high resolution shallow soundings and the other with a larger effective area, suitable for deeper soundings.
Dual moment measuring technique
Using dual moment transmission the ABEM WalkTEM automatically alternates between maximum and reduced current pulses, thus utilizing the benefits from both high energy fields as well as fast current pulse turn-off. The advantage is high resolution response from shallow to maximum depth. With its unique acquisition technology, ABEM WalkTEM accurately resolves a wider span of signals, covering both deep and more near-surface data in one go, greatly improving field survey efficiency.
Processing and visualization
Data processing into a layer model can be done directly on site, using the on-board ViewTEM software. Further processing and visualization can be done with ViewTEM PC version and Aarhus Workbench.
Connectivity
A wide range of connectivity, such as GPS, Ethernet and USB, is available, making it possible to take measurements without being close to the instrument, and for our support team to conduct upgrades, support and troubleshooting remotely.
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ABEM walktem ADVANTAGES

  • Easy to handle standalone system
  • Fast setup, field effective operation and processing directly on site
  • Dual moment measuring technique enables high resolution data from both large and shallow depths
  • Intuitive graphical user interface, easy to switch between pre-installed protocols, integrated easy-to-use processing software
  • Dual channel input utilizes dual antennas working simultaneously
  • High level of integration – a rapid turn-off transmitter, dual channel receiver and computer in one rugged and portable platform
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Product Downloads:
Walktem Product Brochure.pdf
File Size: 2557 kb
File Type: pdf
Download File

WalkTEM 1 & 2 Spec Comparison.pdf
File Size: 280 kb
File Type: pdf
Download File

WalkTEM2 Technical Specification.pdf
File Size: 325 kb
File Type: pdf
Download File

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ABEM Walktem Application
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