Groundtem Deep Ground Water Detector Walktem Transient Electromagnetic Geophysical Underground Resource Detection Gold Cooper

Product Details
Customization: Available
After-sales Service: Yes
Warranty: 1 Year
Manufacturer/Factory & Trading Company

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Year of Establishment
2009-09-11
Plant Area
377 square meters
  • Groundtem Deep Ground Water Detector Walktem Transient Electromagnetic Geophysical Underground Resource Detection Gold Cooper
  • Groundtem Deep Ground Water Detector Walktem Transient Electromagnetic Geophysical Underground Resource Detection Gold Cooper
  • Groundtem Deep Ground Water Detector Walktem Transient Electromagnetic Geophysical Underground Resource Detection Gold Cooper
  • Groundtem Deep Ground Water Detector Walktem Transient Electromagnetic Geophysical Underground Resource Detection Gold Cooper
  • Groundtem Deep Ground Water Detector Walktem Transient Electromagnetic Geophysical Underground Resource Detection Gold Cooper
  • Groundtem Deep Ground Water Detector Walktem Transient Electromagnetic Geophysical Underground Resource Detection Gold Cooper
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Basic Info.

Model NO.
WTEM
Touch Screen Resolution
800x480
Humidity
60%
Data Storage
100W
Channel
13
Frequency
Multiple
Power Frequency Suppression
100dB
Detection Depth
800m
Name
Groundtem Deep Ground Water Detector
Usage
Geophysical Survey
Accuracy
99%
a/D Digit
24 Bit
Transport Package
Backpack
Specification
small size
Trademark
GOLD
Origin
China
HS Code
8544
Production Capacity
100 Sets Per Monthed

Product Description


GroundTEM Deep Ground Water Detector WalkTEM Transient Electromagnetic Geophysical Underground Resource Detection Gold CooperGroundtem Deep Ground Water Detector Walktem Transient Electromagnetic Geophysical Underground Resource Detection Gold CooperGroundtem Deep Ground Water Detector Walktem Transient Electromagnetic Geophysical Underground Resource Detection Gold CooperGroundtem Deep Ground Water Detector Walktem Transient Electromagnetic Geophysical Underground Resource Detection Gold CooperWhat is GroundTEM Deep Ground Water Detector WalkTEM Transient Electromagnetic?

TRANSIENT TIME-DOMAIN ELECTROMAGNETIC (TEM)

One of the most widely used geophysical methods to determine the electrical resistivity of the subsurface is the Transient Time Domain Electromagnetic Sounding (TDEM) which is based on the constant injection of electric current through a coil (loop) which induces a primary magnetic field. The sudden cut in the current interrupts the primary magnetic field which produces the electromagnetic induction of electric currents in the subsurface. These currents have closed trajectories and migrate vertically and laterally, losing intensity as time passes, generating in turn a transient secondary magnetic field. This secondary field induces a time-varying voltage. The time decay of the voltage contains information on the resistivity of the subsurface, which is correlated with the geology of the area to obtain an approximate model of the medium.
Groundtem Deep Ground Water Detector Walktem Transient Electromagnetic Geophysical Underground Resource Detection Gold CooperTechnical Parameter about 

GroundTEM Deep Ground Water Detector WalkTEM Transient Electromagnetic Geophysical Underground Resource Detection Gold Cooper
  • Number of channels: 1 channel
  • Pre-amplifying gain: 8 and 32 times
  • Main-amplifying gain: 1, 2, 4, 8, 16, 32, 64, and 128 times
  • Transmission bands: 0~50KHz (linear phase filter), all-pass filter is 0~400KHz
  • Power frequency suppression: ≥80dB
  • A/D digit: 16-digit
  • Minimum sampling interval: 1μs
  • Number of measuring channels: ≤128
  • Stacking fold: 1~9999 times
  • Synchronization method:
    1. cable and GPS (WTEM-1Q/GPS)
    2. cable, GPS and combination of GPS and quartz clock (WTRM-2Q)
  • Power supply: built-in 12V rechargeable battery (may also use external battery), working hours ≥10 hours
  • Tablet PC: Windows 10 64-bit operation system, 2048×1536 retina display, 2GB RAM, 64GBstorage capacity, Bluetooth and USB.
  1. Transmitter Part
  • Transmitting voltage input: 12V and 24V
  • Transmitting voltage:
  1. 5.5V~8V (transmitting voltage input 12V) continuously adjustable
  2. 5.5V~20V (transmitting voltage input 24V) continuously adjustable
  • Transmitting current: ≤10A
  • Current test precision: ±1%
  • Power supply frequency: 4Hz, 8Hz, 16Hz and 32Hz
  • Transmitted waveform: +ON, OFF, -ON, OFF, equal-width bipolar wave
  • Turn-off time measurement: 0.1μs ~ 100.0μs
  • Typical turn-off time: 2.5μs at 3A transmitting current with 40m×40m single-turn transmitting coil
  • Transmitting coil: 5m×5m single-turn ~ 100m×100m single-turn
  • Program-controlled damping resistance: 50Ω~1600Ω, the step size of 50Ω can be programmed
  • Synchronization method: external synchronization (cable)

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