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› Mae 43
› S3S/S3S2/S3SA SURFACE SENSORS
4.5 Hz geophones sensors: 1 vertical component and 2 horizontal components; angle
of deviation of the horizontal components 90°; aluminium case; spirit level and levelling
feet; dimensions: 150x150x150 mm
S3S2 - 3D surface sensors
2 Hz geophones sensors: 1 vertical component and 2 horizontal components; angle of
deviation of the components; angle of deviation of horizontal components 90°; aluminium
case; spirit level and levelling feet; dimensions: 150x150x150 mm
S3SA - 3D accelerometer surface sensors
Accelerometer sensors (sensibility 1.2 V/g, DC frequency 1500Hz, dynamic 120 dB (100
Hz); 1 vertical component and 2 horizontal components; aluminium case; spirit level and
levelling feet; dimensions: 150x150x150 mm
› Additional accessories for the seismic prospection:
- Seismic prospection high strength cable: 12 sockets (2.5/5/10 m spacing)
- Horizontal geophones with their own frequency: 1/2/4.5/10/14 Hz
- Vertical geophones with their own frequency: 1/2/4.5/10/14 Hz
- 3D geophone with their own frequency 1Hz
- Horizontal and vertical type accelerometers
- Piezoelectric transducers for non-invasive seismic prospection
- Array for double sensor hole measurement (3/5 components), pitch 1 m.
- Hammer with built-in starter device
SOFTWARE
mae-srl.it/go/pslab
› PS-LAB
PSLAB allows simple processing of seismic data in SEG2 format relating
to surveys for refraction or with down-hole technique. Through a
guided path, the program enables a detailed report of the survey to
be obtained, accompanied by graphics and tables, starting from the
field data. For surface seismic analysis, identification of the depth of
refractors is based on the generalized reciprocal method (GRM), which
requires a minimum of three energizations along the extent and calculates
the depth below each geophone and the average speeds of
compression waves in the seismic layers. When identification of the first
arrival times has been performed, directly on seismograms with different
graphic aids or with manual entry in a table, the analysis of travel
time graphs is made simple by an intuitive approach that provides for
the times observed to be attributed to the different refractors by means
of a simple mouse-click. For the down-hole technique, there is automatic,
fast loading of all measurement files in a particular folder. Calculation
of Vp and Vs speeds is based on the interval method. The program
calculates the speeds and the corresponding Poisson module for
each layer detected by analysis of the travel time graphs and the Vs30
average for the entire log.