FastSnap

  • TEM measurements at depths from 5 m to 500-600 m
  • Prospecting for fresh and saline groundwaters
  • Permafrost monitoring
  • Geotechnical survey
  • Engineering geological survey
  • Mineral exploration
  • Petroleum exploration
  • Geoenvironment survey

High-performance multichannel telemetric system advantageous for

  • operation in any climate: Arctic tundra or deserts, rainforests or Siberian taiga
  • high sampling rates (ΔT from 25 ns) for high-resolution near-surface imaging
  • high noise immunity
  • 100% green operation
  • light weight and high field mobility
  • friendly interface easy for learning
  • Russia
  • Malaysia
  • Indonesia
  • Taiwan
  • Chile
  • China
  • Australia
  • Saudi Arabia
  • India
FastSnap
FastSnap
FastSnap
FastSnap
FastSnap
FastSnap
FastSnap
FastSnap

Receiver unit

Sampling:
Fast ADC: 25 (14-bit), 100 (16-bit), 800 (19-bit) ns, 6.4 (22-bit) μs.  Standard ADC (24-bit): 25.6, 204.8 μs

Gain:
Set of predefined gains up to 280

Resolution:
2×ADC’s: 14 bits (Fast) and 24 bits (Standard); internal hardware summation is used to enhance 14-bit ADC up to 22-bit resolution

GPS:
12-channels built-in GPS receiver

Synchronization accuracy:
GPS (±90 ns) or cable (±500 ns)

Windows (Gates):​​​​​​​
Up to 14500 samples per single trace with 25 ns - ~3 sec of recording time. Time gates assigned in post processing (user defined)

Transmitter unit

Output power:
0.1 – 45 A with ≤2 Ω load (TX loop)
330 V and 5A max with a grounded line

Current options:
0.5, 2, 7, 20, 30, 45 A of non stabilized current modes available for standard loop (current is measured with better than 1 % accuracy). Additional resistor 0.5 Ω can be connected serially with a load

Damping resistor:
Set of automatically commutable built-in damping resistors from OFF up to 2000 Ω for suppressing "ringing" in a TX loop

Synchronization accuracy:
GPS (±90 ns) or cable (±500 ns);

On / Off time​​​​​​​:
20, 40, 100, 200, 500, 1000 ms;
Current to pause ratio: 1:1, 3:1, no pause

Turn-off time (ramp):
1 – 2 μs for 25 m TX loop, 2.5 – 5 μs for 100 m loop