Bathyswath-2

Bathyswath-2 has been in use since 2015. It gives excellent performance and reliability in a small, low-power package with 3 frequency options (117, 234 & 468 kHz).

Bathyswath-2 gives wide swath widths; this increases survey speeds significantly, especially in shallow water. It has three frequencies: 117, 234 or 468 kHz with respectively 400, 200 and 100m maximum ranges. The US Geological Survey (USGS) said: “Operating swath of the bathymetric system ranged from 15 to 20 times water depth in in depths less than 15m”.

Unlike Bathyswath-3, Bathyswath-2 works on a single sonar frequency, which can be user selected at run-time, and has one, two, or three separate sonar transducers. It therefore has fewer operational features than Bathyswath-3, but its simpler construction can be useful in some applications.

Different configurations for different uses

  • B2S : Bathyswath-2 Standard (Deck Unit)
  • B2U : Bathyswath-2 Underwater (Subsea Unit)
  • B2O : Bathyswath-2 Omega (full integrated system)
  • B2OEM : Bathyswath-2 OEM (for OEM integration)

Bathyswath-2 OMEGA (B2O)

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Although Bathyswath-3 is now available, we still offer the B2O package, to support users who have designed their systems around it, or for the occasional case where the physical layout of Bathyswath-2 suits a vehicle or vessel better.

For an integrated package, in most cases we recommend either Bathyswath B3S-B or Bathyswath B3S-A plus Navbox.

Bathywath-2 OMEGA (B2O) provides sonar control, GNSS positioning, INS motion compensation, sound velocity measurement, and data acquisition and sonar processing and data acquisition in one compact package. Bathyswath uses wide swath widths; this increases survey speeds significantly, especially in shallow water.

  • 3 sonar frequencies (117, 234 or 468 kHz), in bathymetry and sidescan.
  • Low-power consumption.

Integrated OMEGA deck unit

One optional motion sensor (4 possibilities), one optional dual-antenna GNSS receiver for heading and positioning (3 possibilities) and two single-board-computers (one for sonar data acquisition and one for 4G communications & end-user needs).

3 different transducers: 117, 234 or 468 kHz.

Frequencies : 117 kHz / 234 kHz / 468 kHz

  • Operational slant range (m): 400 / 200 / 100
  • Maximum slant range (m): 600 / 300 / 150
  • Horizontal beam width (2way): 0.85° / 0.55° / 0.55°
  • Spatial resolution limit(mm): 6 / 3 / 1.5
  • Deck unit dimensions (mm): 390 x 290 x 100
  • Deck unit weight (kg): 4.1
  • Deck unit sealing: 100
  • Transducer dimensions (mm): 200 x 550 x 70 / 100 x 340 x 55 / 60 x 230 x 40
  • Transducer weight, air-water (kg): 8.6 kg – 1.3 kg / 5 kg – 0.8 kg / 1 kg – 0.1 kg
  • Marine services
  • Research
  • Environment
  • Natural Resources
  • Archaeology
  • Military Rapid Environmental Assessments (REA)
Download documents

Bathyswath-2 OMEGA brochure

Bathyswath-2 PSM

Bathyswath-2 Permanent Siltation Monitoring system (B2-PSM):

  • Remotely monitored and controlled through 3G/4G wireless mobile or wired communications
  • User friendly web interface
  • Angular scanning head
  • Automatic processing and reporting

The main parts of a Bathyswath-2 PSM are:

  • A Bathyswath-2 underwater system fitted to a panhead
  • A cabinet inside the dam, with a computer running Bathyswath software and communications equipment
  • A remote computer system, which archives the data from each scan for analysis
  • Frequency (kHz): 234
  • Operational slant range (m): 200
  • Maximum slant range (m): 300
  • Along-beam resolution (cm): 2
  • Across track resolution (cm): 2
  • Measurement resolution limit (mm): 6
  • Resolution detection limit (mm): 3
  • Azimuth beam width (2-way): 0.55°
  • Transmit pulse length (μs): 8.5 to 4300
  • Max. umbilical cable length (m): 200
  • Bottle and transducer dimensions: 192 x 290 x 660 mm, 26.6 kg
  • Pan head dimensions 292 x 246 x 137 mm, 20.0 kg
  • Bottle depth rating (m): 2000
  • Communications 3G/4G wireless mobile or VDSL2 wired
  • Frequency of scans selectable
  • Water intakes (hydroelectric dams)
Download documents
Bathyswath-2 PSM brochure

Bathyswath-2 PSM Technical Information

Bathyswath-2 OEM (B2OEM)

Bathyswath-2 OEM (B2OEM) is made for integration by clients in their own systems.
Also consider Bathyswath-3 OEM.

It includes the following items:

  • 1 to 3 transducers  (117, 234 or 468 kHz)
  • 1 x Transducer Electronic Module (TEM) – Bare board set
  • 1 x Data acquisition & 3D processing software (Unlimited licences, no PC is supplied)
  • 1 x Data acquisition software for Linux or Windows (other operating systems available on request)
  • 12 month return-to-base warranty and packaging.

Optional components include:

  • An interface board, simplifying connection to the electronics
  • Cable sets, with standard computer and power connectors
  • Transducer extension cables
  • Transducer mounting hardware

Frequencies : 117 kHz / 234 kHz / 468 kHz

  • Operational slant range (m): 400 / 200 / 100
  • Maximum slant range (m): 600 / 300 / 150
  • Minimum depth (m): 0.3 / 0.2 / 0.1
  • Measurement resolution limit (mm): 12 / 6 / 3
  • Resolution detection limit (mm): 6 / 3 / 1.5
  • Across track resolution (cm): 5 / 2 / 1
  • Azimuth beam width (2way): 0.85° / 0.55° / 0.55°
  • Transmit pulse length (μs): 17 to 8500 / 8.5 to 4300 / 4.3 to 2100
  • Max. cable length (m): 50
  • Transducer dimensions (mm): 200 x 550 x 70 / 100 x 340 x 55 / 60 x 230 x 40
  • Transducer weight, air-water (kg): 8.6 kg – 1.3 kg / 5 kg – 0.8 kg / 1 kg – 0.1 kg
  • User-developed platforms
  • Unmanned surface vehicles (USVs)
  • Autonomous underwater vehicles (AUVs)
Download documents

Bathyswath-2 OEM brochure

Bathyswath-2 Technical Information

Survey Note Greece