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  3200-XS Sub-Bottom Profiling System C O N F I G U R A T I O N  D I A G R A M

 

  Model 3200-XS Topside
  Processor with
  DISCOVER Sub-
  Bottom Software

 

*Download 3200-XS Brochure

 


APPLICATIONS

  • EEZ resource development
  • Geo-technical surveys
  • Hazard surveys
  • Environmental site investigations
  • Geological studies
  • Sediment classification
  • Buried object location
  • Locate and map buried pipelines and cables
  • Mining and dredging surveys
  • Bridge and shoreline scour surveys

FEATURES
  • Unequalled images
  • 20-30 dB improved SNR over conventional sub-bottom profilers
  • Three tow vehicle options
  • SEG-Y and/or native JSF data file formats

EdgeTech 3200-XS Sub-Bottom System
USGS 3200-XS System

EdgeTech 3200-XS Sub-Bottom System

EdgeTech 3200-XS Sub-Bottom System

DESCRIPTION

The 3200-XS Sub-bottom Profiling System is EdgeTech’s long running success story in providing Full Spectrum CHIRP imaging systems to customers who need the best in underwater acoustic imaging. Under any conditions when compared to other sub-bottom profilers, EdgeTech provides better images, more deployment options, and interface flexibility.

Three towfish options are available. The SB-512i has a frequency range from 500 Hz to 12 kHz. The SB-216S from 2-16 kHz, and the SB-424 from 4-24 kHz.

The 3200-XS system uses special design transmitters with low Q wideband characteristics best suited for CHIRP transmissions. If conventional off-the-shelf transducers are used then there is a need to compensate in software for the narrow band characteristics of the transmitters. The result is visible in the images created. At least two hydrophones are installed in the tow vehicle to reduce acoustic scattering from the sides. This results in a narrower across track beam pattern.

Preserved in the output of the EdgeTech's Full Spectrum CHRP processing is the signal phase.

This phase information is also recorded to the mass storage device. This phase information is required for sub-surface sediment classification. Phase is used to determine if the impedance is increasing or decreasing.

EdgeTech separates the Full Spectrum signal processing and the signal amplifier out into separate housings. This lets a user interface to his own or a 3rd party topside display processors for command, control, display, printing and data storage.

EdgeTech offers several different tow vehicles that chirp over different frequency ranges. The same topside Full Spectrum signal processor, linear amplifier and tow cable are compatible with all of the vehicles. Use different tow vehicles for desired penetration and resolution. The FM pulse is user selected based on the sub-bottom conditions at the survey site and the type of sub-bottom features that need to be imaged.


S   P  E  C  I  F  I  C  A  T  I  O  N  S

    Towfish Model

SB-512i

SB-216S

SB-424

    Frequency Range

500 Hz - 12 kHz

2 - 16 kHz

4 - 24 kHz

    Pulses (user selected)

2-12 kHz, 2-8 kHz,
1.5-7.5 kHz, 1-6 kHz,
1-5 kHz, 0.5-5 kHz

2-16 kHz, 2-12 kHz,
2-10 kHz

4-24 kHz, 4-20 kHz,
4-16 kHz

    Vertical Resolution
     (depends on pulse selected)

8 - 20 cm

6 - 10 cm

4 – 8 cm

    Penetration (typical)
    in coarse calcareous sand     (meters)
    in clay (meters)
20
200
6
80
2
40
    Beam Width
     (depends on center frequency) 		16° - 32° 17° - 24° 16° - 23°
    Size (cm) 160L x 124W x 47H 105L x 67W x 40H 77L x 50W x 34H
    Weight 190 kg 76 kg 45 kg
    Calibration Each system is calibrated for reflection coefficient measurements
    Cable Requirements 3 shielded twisted pairs (5 used)
    Maximum Towfish Operating     Depth 300 meters (1,000 feet)
    Optimum Tow Height 3 to 5 meters above seafloor
    Tow Speed 3-4 knots optimal, 7 knots maximum safe operational
    Options Integrated Depth Sensor, 4 kW Amplifier, USBL Acoustic Tracking System


3200-XS vs. 3100-P SUB BOTTOM SYSTEM FEATURE COMPARISON
     3200-XS 3100-P

    Power Input

 120-220 VAC 120-220 VAC or 12 VDC

    Towfish Interface

All SB-424, SB-216S only

    Power Amplifier

 2 KW (4 KW option) 200 Watts

    Navigation Message Input

 Robust Limited

    Bottom Sediment Classification

 Yes No

    Bottom Tracking

Yes Yes (always on)

    Color Palette

Yes Gray scale only

    Data Type

Native complex numbered format (.jsf) and/or standard Seg-y Seg-y only

    Heave Compensation Input

 Yes No
    Hull Mount Yes No
    Mass Storage Hard drive (archive to DVD-RW or via LAN connection) Hard drive (archive to DVD-RW) 18/sec, 6/sec
    Maximum Ping Rate 18/second 6/second

    Maximum Water Depth Below
    Towfish

None Depth display based on ping rate (max 100 meters)
    Multiple Pings in Water Column Yes No
    Navigation Screen with Ship Track Yes, optional with 3rd party software No
    Depth Sensor Option SB-0512i towfish only No
    Printer Drivers EPC, Ultra, HP, Odeco, Isys, others added regularly EPC, Ultra, HP, Odeco, Isys, others added regularly
    Print Options Prints real-time Printing not supported at this time on portable topsides
    Topside Display Processor PC based and 3rd party processor through Ethernet interface EdgeTech topside only (PC based)
    Navigation Files Yes, ASCII XY file No
    Digitization Yes, XYZ ASCII file No
    Scale Lines Yes, user adjustable No
    Swell Filter Yes, display only No
    Data Delay Yes, user adjustable screen No
    Alerts Yes, multiple user defined No
    Image Capture Yes, JPEG No

O P T I O N A L   C O N F I G U R A T I O N


4 Little Brook Road • West Wareham, MA 02576 • USA • Phone: 1-508-291-0057 • Fax: 1-508-291-2491
1141 Holland Drive Bay 1 • Boca Raton, FL 33487 • USA • Phone: 1-561-995-7767 • Fax: 1-561-995-7761

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