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Contact name:Michelle
Chongqing Gold Mechanical & Electrical Equipment Co.,Ltd |
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Electric And Magnetic Fields Exploration Transient Electromagnetic TEM Equipment For Deep Water and Mineral Exploratio
Transient electromagnetic method (TEM) is based on the principle of electromagnetic induction and adopts the time-domain electromagnetic detection method excited by artificial field sources. The electrical source mode sends pulse signals to the ground, the ground is excited to generate a transient electromagnetic field, and the conductive geological body is induced to generate eddy currents to generate a secondary field.
Application:
1. Tunnel advanced detection
2. Exploration of geological structures around tunnels and roadways, detection of structural distribution of mining areas on the ground, and water content of structures;
3. Exploration of concealed water-conducting structures during excavation;
4. Detecting the burial depth and ore-bearing structure of benign conductive ore bodies, other engineering exploration and environmental exploration;
5. Detection of mineral veins in underground mines;
6. Structural detection and metal pipeline detection around underground caverns;
7. Exploration of water inrush sources in goafs and abandoned small coal kilns, and exploration of collapsed columns.
Techenical Specification
Transmitting voltage | ≤200V3 |
Transmitting current | ≤50A |
Current measurement precision | current range before power supply being cut off is 0~50A, display resolution is 0.01A. |
Power supply frequencies | 0.0625Hz, 0.125Hz, 0.25Hz, 0.5Hz, 1Hz, 2Hz, 4Hz, 8Hz, 16Hz, 32Hz |
Transmitting waveform | +ON, OFF, -ON, OFF, equal width and dual polarity |
Turn-off delay time | 1μs~1000μs |
Turn-off time | ≤1.2μs (pure resistance), changing with the transmitting current and transmitting coil when connecting to the coils |
Damping resistance | 1000Ω |
Transmitting coil | 0.1km×0.1km single turn ~ 2km×2km single turn |
Synchronization mode | external synchronization (cable, GPS) |
Power supply | internal 12V8.6Ah rechargeable battery (or external 12V power supply) lasting for over 10 hours |
Dimension | 525×436×217mm3 |
Weight | 18.5kg |
Working temperature | -10°C~+50°C |
| Receiver |
Number of channel | 1 |
Pre-amplification gain | 8, 32 times |
Main amplification gain | 1, 2, 4, 8, 32, 64, 128 times |
Band-pass | 0~50k Hz (liner phased filter), full band-pass 0~400k Hz |
Suppression | 80dB |
A/D | 16 bit |
Min sample interval | 1μs |
Trace number | ≤128 |
Stacking times | 1~9999 time |
Synchronization mode | internal 12V9.6Ah rechargeable battery (or external 12V power supply) lasting for over 10 hours |
Pocket PC | Windows Mobile 6.0 system with software such as Word, Excel, etc., 320x240 true color, 64MB Flash Rom/ 64MB SDRAM/64MB 2GB CF card, able to store over 200,000 readings of sampled data,2 original rechargeable batteries |
Ports | Bluetooth, infrared and serial port |
Dimension | 340×295×152mm |
Weight | 5.3kg |
Working temperature | -10°C~+50°C |
Product Image
