Time Domain Electromagnetics Survey System
A versatile TDEM survey system for high-resolution detection and mapping of ferrous and non-ferrous subsurface objects in geophysical, archaeological, and environmental applications.
Key Features:
✔️ High-resolution TDEM technology for precise subsurface object detection
✔️ Supports small-area portable (SMD12) and large-area cart-based (EMD2) surveys
✔️ Integrated digital data logging with optional DGPS for georeferenced mapping
✔️ Rapid deployment and intuitive operation for field surveys
✔️ Differential coil configurations enhance target separation and accuracy
✔️ Rugged design suitable for diverse terrains and environmental conditions
✔️ Lightweight and portable options for hard-to-access sites
✔️ Flexible configurations to match survey scale, resolution, and operational needs
Time Domain Electromagnetics Survey System
The Time Domain Electromagnetics Survey System transmits electromagnetic pulses into the ground and records decay responses from subsurface metallic objects using differential receiver coil configurations. This TDEM technology detects both ferrous and non-ferrous materials through time-domain signal analysis. The system integrates digital data logging with optional DGPS receivers that tag measurements with precise geographic coordinates during field operations.
Two primary models address different survey scales and mobility requirements. The EMD2 TDEM Multi-Sensor mounts three differential receiver coil pairs on a cart platform for medium to large area coverage with high spatial resolution. The SMD12 portable unit features a foldable coil frame weighing approximately 3.2 kilograms that assembles in under two minutes for rapid deployment. Both configurations support standalone operation or connectivity with PDA devices and Bluetooth-enabled computers for real-time data visualization.
Military ranges deploy the Time Domain Electromagnetics Survey System to locate buried unexploded ordnance and spent munitions across training facilities before civilian land transfer. Environmental consultants map contaminated industrial sites to identify buried metal drums and underground storage tanks leaking hazardous substances. Archaeological teams use portable TDEM units to discover metal artifacts and structural foundations without excavation damage to historical sites. Mining companies conduct geophysical surveys with cart-based systems to delineate conductive ore bodies and map subsurface geological structures across exploration claims.
Tactical Supply Pakistan supplies both EMD2 cart-based and SMD12 portable TDEM systems with complete data logging accessories and DGPS integration hardware for georeferenced surveys. The distributor stocks replacement coil assemblies and field-proven survey mapping software packages.
How does TDEM differentiate between ferrous and non-ferrous buried objects during field surveys?
TDEM analyzes electromagnetic decay curves that vary based on object conductivity and magnetic permeability. Ferrous materials produce longer decay times due to magnetic properties, while non-ferrous metals generate characteristic decay signatures based solely on conductivity values.
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