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
|
|
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