WTEM-Transient Electromagnetic System for Quick Survey - Flexible Configuration
The WTEM System excels in rapid geological surveys and stereo mapping with its flexible configuration. It enables efficient evaluation of extensive areas and detailed 3D subsurface imaging, making initial geological assessments both time-efficient and informative.
System Components
- Transmitter: High-performance power devices with strong transmission capabilities, generating stable high-power transient current for effective deep underground signal transmission.
- Receiver: Equipped with high-sensitivity sensors and low-noise preamplifiers for accurate capture of weak secondary field signals, featuring high resolution and large dynamic range.
- Transmitter and receiver coils: Various specifications available to ensure optimal coupling with target bodies and improved detection accuracy.
- Control system: Intelligent operating system with easy operation, enabling one-button control of instrument parameter setting, data acquisition, processing, and storage.
Technical Specifications
| Advantage Category |
Core Technical Support |
Key Performance |
Typical Application Scenarios |
| Ultra-High Detection Precision |
16-bit A/D converter, 1μs minimum sampling interval, ≤5×10⁻⁹ crystal total error, 1-9999 times data stacking |
Captures weak transient electromagnetic signals; time-depth error ＜0.01%; meter-level accuracy in identifying geological body boundaries |
Deep ore body positioning, detailed characterization of oil-gas reservoirs, delineation of groundwater contamination plumes |
| Strong Environmental Adaptability |
Operating temperature -10℃~50℃, receiver with built-in 12V battery (battery life ＞20h), IP65-level protection |
Stable operation in extreme temperature/humidity; continuous field work for over 1 workday without external power |
Plateau mining exploration, desert oil-gas survey, cold-region engineering geological investigation |
| Flexible Configuration & Multi-Scenario Adaptability |
Receiver with 1/32 optional channels, amplifier gain adjustable from ×1 to ×128, transmission frequency optional 0.125Hz-64Hz |
Balances rapid survey (1 channel + low gain) and detailed mapping (32 channels + high gain); seamless switch between shallow and deep detection |
Large-scale regional geological mapping, tunnel advance detection (shallow), deep geothermal resource exploration |
| High-Power & Deep Penetration |
10KW transmitter (200V/50A), fast turn-off technology, high-power signal transmission circuit |
Signal penetration depth ＞1000m; 40% higher recognition rate of deep low-resistivity bodies (compared with 5KW equipment) |
1000m-level metal mineral exploration, deep coalbed methane resource survey, basement structure detection |
Applications
- Mineral resource exploration: Detection of various metal and non-metallic minerals, determining location, scale and shape of ore bodies.
- Groundwater exploration: Accurate location and distribution mapping of underground aquifers for water resource development.
- Engineering geological survey: Identification of underground cavities, faults, and fissures for construction site selection and design.
- Environmental monitoring: Detection of underground pollution distribution for environmental protection and governance.
- Disaster geological survey: Detection of potential landslide and mudslide areas for disaster warning and prevention.
Technical Specifications
WTEM-2J/GPS TEM Exploration system receiver
Channel number: 1
Pre-amplifier gain: 8, 32 times
Main amplifier gain: 1, 2, 4, 8, 16, 32, 64, 128 times
Band pass: 0~50kHz(liner phased filter), full band 0~400kHz
A/D bit: 16bit
The minimum sample interval: 1 μs
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 rechargeable battery(support outside power), working time≥10 hours
Working temperature: -10℃~+50℃
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
Transmitting power voltage display: Liquid crystal display unit V, display resolution 0.1V
Working temperature: -10℃~+50℃
