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SYSMATRACK
SUPPORTED INVESTIGATION
Seismic refraction investigation
Seismic riflession investigation
Down-hole / Cross-hole
M.A.S.W. / S.A.S.W. / Re.Mi.
24 bit seismograph for seismic prospecting
with refraction, reflection survey,
active and passive MASW (Re.Mi.),
SASW, Down-hole, Cross-hole methods.
The unit is equipped with acquisition
card with 24 bit resolution and
is available in the 12-channel version
that can be extended to 24. Two 24-
pole connectors for the seismic cables
of 12 channels each, the connector for
the starter, the external 12 V supply
and the USB interface to connect the
notebook or PC for the management
of the instrumentation (not supplied)
are located on the front panel. All parameters
relative to the type of seismic
survey that is carried out easily
and quickly, are set up through the
Sysmatrack Manager software, that
can be installed on any PC or notebook
connected to the acquisition unit.
SPECIFICATIONS
• Converters: 24 bit resolution, sigma- delta
technology
• Dynamic range: 144 dB (theoretical)
• Maximum distortion: +/-0.0010%
• Band width: 2Hz-30KHz
• Common mode rejection:
• Diaphony: -120dB at 20 Hz
• Noise threshold of the programmable amplifier
27nV
• Trigger precision: 1/30 of the sampling time
• Maximum range of inlet signal: +/-5V
• Inlet impedance at 1000 samples/second:
20Mohm
• Amplification levels: 0 dB, 6 dB, 12 dB, 18 dB,
24 dB, 30 dB, 36 dB that can be set singularly
for each channel or for groups of channels
that can be organized freely
• Anti-alias filter: -3dB, 80% of Nyquist frequency,
-80dB
• Pre-trigger time: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
12, 13, 14, 15, 16, 17, 18, 19, 20, 50, 100, 200,
300, 400, 500ms
• Sampling intervals: 1/15, 1/7.5, 1/3.75, 0.5,
1.0, 2.0, 10.0, 20.0 ms
• Number of samples per event: set from 1024
to 43520 with increases of 512
• Delay: not available
• Interfaces available: USB (it requires a control
PC)
• Channels: configurations of 12, 24 channels.
Possibility to use from 1 to the maximum
number of channels installed for each
acquisition
• Test on instruments: only in the laboratory
• Internal self-calibration of the converters
prior to each acquisition
• Digital filters: selected automatically based
on the sampling frequency
• Geophone tests: automatic check to identify
interruptions of cables or broken geophones
or in short circuit. Real time visualization of
the signals coming from the geophones
• Data storage: in the mass memories of the
control PC
• Trigger: positive, negative (optional with
contact lock) with threshold regulated
through a software
• Data format: SEG-2 standard (32-bit long integer)
or ASCII
• Power supply: 12V DC, supplied by a specific
re-chargeable power box. Average absorption:
250mA
• Environmental conditions: -20/80 °C
• Compatible Operative Systems: Windows XP,
Windows Vista, Windows7 of 32bit
mae-srl.it/go/sysmatrack