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The xTEM

The xTEM geoscanner delivers efficient, reliable data for geophysical mineral exploration. It conducts measurements from a single source with wireless, independent, lightweight receivers, capturing data to depths beyond 600 m (2000 ft). The high-powered hybrid system delivers increased depth of investigation alongside 3D imaging capabilities.
Deep mineral exploration

xTEM

The xTEM delivers accurate data up to depths of 1000 m

Conducting single-site measurements, capturing data reaching depths beyond 600m. The xTEM is operated via an Android or iOS app.

Configuration

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Transmitter coil sizes – 40 x 40 m,  80 x 80 m, 200 x 200 m
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Transmitter output current – 1 Amp (turn-off time ~ 11 us)  up to 30 Amp (turn-off time ~ 30 us)
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Transmitter weights – 40 m x 40 m – 6 kg pr drum
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Receiver coil sizes – 3 m x 3 m (36 m2)  5 x 5 m (200 m2)
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Receiver weight -5 kg (11 lb)
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Depth of investigation – 500 m -1000 m, dependent on coil configuration and geology
Independent wireless receivers – single or multiple units can be used simultaneously
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Connectivity – WiFi, iOS & Android 
The xTEM geophysical scanner in use on a mining survey.
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Get to know the xTEM

Next-generation geoscanners for mineral exploration 

The xTEM is built to deliver high-quality transient electromagnetic data suitable for effectively and quickly mapping survey areas, tracing mineral deposits, discovering suitable drill locations, and maximizing the lifetime extraction potential of mining and development projects. 

xTEM overview

The xTEM geoscanner delivers efficient, reliable data for mineral exploration. It conducts measurements from a single source with wireless, independent, lightweight receivers, capturing data beyond 600 m (2000 ft) depths.

Affordable and robust, the xTEM operates via an Android or iOS app. With its compact setup, the xTEM enables discreet and noninvasive geophysical surveys. The transmitter operates with the dual moment and has a stable and fast waveform with a high 30 Amp current output. Multiple simultaneous users facilitate rapid data collection, covering many receiver stations daily, enabling 3-D imaging.

The lightweight and portable xTEM receiver weighs as little as 10 kg (22 lb). The receiver worked independently of the transmitter so several units can be operated at the same time, increasing the speed and efficiency of the survey. The design of the receiver coils further increases the signal level with respect to noise, enabling the instrument to measure deeper with less transmitter power.

WiFi and internet connectivity deliver seamless data upload and provide remote support capabilities.

An illustration of the xTEM geophysical scanner in use on a mining survey.

The app controller

The xTEM uses the user-friendly sTEM Controller app to manage the xTEM system. It is available for Android and iOS and can be easily installed from the Google Play or Apple App Store.

The connection process is straightforward. Connect your phone to the xTEMs wifi and use the controller app to control the instrument. Remember to turn off your mobile data network to prevent automatic switching. Once you open the app, the controller interface will be displayed, and you can check the quality of your data as you measure. The easy setup enables you to be up and running in the field quickly and efficiently.

Technical specifications

xTEM system: Transmitter with independent receivers 

Transmitter size: 80 x80 m (262 x262 ft) 

Transmitter weight: 6 kg per drum, 24 kg total (88 lbs) 

Transmitter output current 1 Amp (turn-off time ~11 us) and  30 Amp (turn-off time ~30 us).  

Receiver rig size: 1.6 x 1.6 m rig ( 5.2 x 5.2 ft)

Receiver rig weight– 5 kg 

Depth of investigation: Up to 600 m (2000 ft) 

Power supply: Up to three 12. V lithium batteries (50 Amph or 100 Amph) 

Portability: Shipping boxes for transport 

Connectivity:  WiFi, iOS & Android app controlled

An illustration of the xTEM geophysical scanner in use on a mining survey.

Data processing

Data is processed using dedicated software and presented along cross-sections or on maps. Combining the information from the xTEM measurements with, for example, topography data or typical resistivities of the aquifers can give a better hydrological understanding of the subsurface. This information can then be used for pinpointing mining sites.

Updates

The xTEM instrument can easily be updated with over-the-air software and firmware upgrades.

The xTEM geophysical package from TEMcompany

Customer support

At TEMcompany, we are committed to providing our customers with a comprehensive support and training package. We can help with instrument issues, training, survey planning, data quality control, and interpreting results.

Our team of experts is available to offer guidance and expertise, ensuring you gain maximum value from your TEMcompany instrument.

We also offer an extended support package with unlimited survey design, data QC, and data processing support.

Contact our sales team
Inducien Instruments S.A. visiting TEMcompany in Aarhus, Denmark
Need help choosing the right instrument for your project or want to discuss your particular survey challenges?

Field tested and trusted

What professionals say about our geophysical scanners.

Professionals worldwide rely on TEMcompany’s geophysical scanners for their reliability and accuracy in challenging environments. From mapping groundwater in arid regions to identifying subsurface layers beneath frozen terrains, customers choose TEMcompany’s instruments for their ease of use, portability, and robust performance. Whether used by NGOs, consultants, contractors, or researchers, our instruments are recognized as an integral part of today’s complex subsurface exploration and environmental assessment landscape.

We've wrapped up the field work here in Kakuma. You guys have really built an incredible system. The Kenyans, with no geophysics experience, can collect data without support after maybe 2 or 3 sites. One of them asked if sTEM stood for simple TEM because it was so easy.

Denys GrombacherAssociate Professor, Aaarhus University

It’s so refreshing to buy an instrument from a group and have amazing support - it doesn’t happen often these days! Your team’s messages were incredibly helpful, well beyond what I could have provided.

Matthew R. SiegfriedAssistant Professor, Colorado School of Mines

I’ve been waiting for a system like this for years and the tTEM has exceeded all my expectations!

Justin B. Rittgers, Ph.D., PGP.Geophysicist, US Bureau of Reclamation
Need help choosing the right instrument for your project or want to discuss your particular survey challenges?
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Upgrades and updates

TEMcompany instruments are built for the future. Over-the-air updates keep your instrument running on the latest software, enabling you to get the most accurate data for your project.

Delivering accuracy with our data partners.

TEMcompany’s instruments deliver accurate and reliable data. We work closely together with Seequent to provide the tools that help make geophysical profiling easy.

TRANSIENT ELECTROMAGNETIC GEOPHYSICAL SURVEYS

Why use TEM technology?

Our TEM technology

The Transient Electromagnetic (TEM) geophysical survey method is a modern technique designed to measure vertical resistivity profiles with particular sensitivity to conductive materials.

  • Particularly sensitive to conductive materials
  • Non-invasive method using wire loops to transmit and receive signals
  • Leaves no trace on the survey site after data collection
  • Highly efficient, requiring a transmitter loop and one or two smaller receiver coils
  • Can achieve depth measurements of up to 600 meters
  • Entire process takes only a few minutes, from setup to resistivity modeling
TEMcompany's sTEM controller running on an iphone

Where to use TEM

TEM surveys are highly versatile and are particularly effective in the following areas. Our instruments deliver accurate, fast data to solve many geophysical challenges.

Groundwater Exploration: Identifies freshwater reserves, saline water, and contamination zones to optimize well placement and drilling depth.

Mineral Detection: Locates mineral deposits based on their unique resistivity signatures.

Geological Mapping: Reveals the subsurface structure for various geological studies.

Environmental Surveys: Assesses contaminants and salination in the soil.

Graphic showing TEMcompany products in use.

The benefits of TEM

Transient Electromagnetic (TEM) mapping is a non-invasive method that ensures that survey areas remain undisturbed, as it uses wire loops to transmit and receive electromagnetic signals without leaving physical marks on the terrain.

TEMcompany geoscanners enable fast, accurate geophysical data collection alongside easy instrument setup, delivering significant time savings for consultants, contractors, and clients.

TEMcompany TEM geophysics illustration
CASE STUDIES FROM AROUND THE WORLD

Global Impact

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