Instrumentation GDD Inc. Geophysical instrumentation for Exploration and Mining Sectors
Instrumentation GDD Inc. (GDD) develops high-tech geophysical instrumentation for mining and exploration geophysics, groundwater exploration, geotechnical investigations and other related fields.
Since 1976, we have developed, manufactured and sold a wide range of resistivity / induced polarisation (IP) and electromagnetic (EM) geophysical instruments.
Innovative resistivity / IP geophysical systems for mining exploration
GDD offers a wide range of resistivity / IP geophysical instruments for ground survey applications.
Our IP Transmitters can send up to 20,000W-4,800V-20A in both resistive and conductive environments, while our IP Receivers feature up to 32 channels, making them suitable for both 2D and 3D surveys.
Our versatile EM-IP Tx Controllers allow current monitoring, global positioning satellite (GPS) synchronization and free post-processing IP software for quality analysis (QA) and control (QC) of your field data.
Time-domain electromagnetics equipment for ground surveys
GDD offers an array of time-domain electromagnetics (TDEM) solutions for ground surveys.
In addition to our EM-IP Tx Controllers, we provide TDEM Receivers that feature up to eight channels, with 24-bit, 120kHz capacities each.
In addition, our Beep Mat is an innovative prospecting tool for the initial stages of exploration programmes.
Mobile instruments for mineral analysis
GDD’s portable tools enable you to characterise the physical properties of your cores and rock samples.
Our instruments include Sample Core IP (SCIP) Testers with a borehole option for resistivity / IP measurements, and MPP Probes record magnetic susceptibility / EM conductivity measurements.
Our SSW System is designed specifically for the mining industry to increase the ore grade at the mill.
GDD’s team of researchers, engineers, technicians and geoscientists is committed to facing challenges related to mining and exploration fields. Their solid professional experience and knowledge of the geophysics is a valuable asset to the mining industry.
We are renowned for our customer service, and rugged and reliable instrumentation. The company offers documentation and services in French, English and Spanish.
Established in Quebec in 1976, GDD’s head office, production line, R&D and administration facilities are located in Quebec City, Canada.
Products and Services
Resistivity / Induced Polarization (IP) Receivers
These receivers are compact and low power consumption designed for Resistivity and Induced Polarization (IP) surveys.
NordicEM24 24-bit EM Receiver
Looking for a portable, user-friendly EM Receiver working at -40°C?
The Beep Mat
A powerful prospecting tool.
Sample Core IP Tester (SCIP)
Get the information that you need to design an appropriate geophysical survey!
Resistivity / Induced Polarization (IP) GDD Transmitters
Reliable and robust, the GDD IP Transmitters are used over the world for Resistivity and Time-Domain Induced Polarization (IP) surveys for a wide range of applications.
Resistivity / Induced Polarisation (IP) Transmitter, Model Tx4
GDD'S new 5,000W-2,400V-20A was developed using the latest technology. The digital Tx4 can now reach 20A, is more ergonomic and will allow you to save time and money.
Multi-Tx Mode Connectors
Use one or two of your own Tx4 with rental Tx4 in order to reach the maximum power and increase the depth of your investigation.