Bathyswath-1 and SWATHplus

 

 

Bathyswath-1 STD (Standard) and SP (Splash Proof)

Bathyswath-1 is an efficient & affordable bathymetric & seabed mapping survey system, derived from the established & respected SWATHplus system.

  • Bathyswath uses wide swath widths, this increases survey speeds significantly, especially in shallow water.
  • It has 3 frequencies: 1 1 7, 234 or 468 kHz to be used respectively up to 350, 200 & 80m of water depth.
  • 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”.
  • A forward-facing transducer can be installed in order to increase data density below the transducers (nadir).

SYSTEM DESCRIPTION

  • 2 or 3 transducers (117, 234 or 468 kHz - 1 meter tail each)
  • A data acquisition, processing and 3D visualization software (unlimited licences, no PC is supplied)
  • 1 Transducer Interface Unit (TIU) including 1 to 3 Transducer Electronic Modules (TEM) inside a Dry-TIU (Blue metal box) or a Splash-TIU (IP65)
  • 1 to 3 cable extensions for the transducers (5, 10, 15, 20 or 25 m each - 15m max. for 468 kHz transducers)
  • 1 V-bracket for 2 or 3 transducers
  • 2 rugged transit cases
  • 12 month return-to-base warranty and packaging

 

PRODUCT COMPARISON

  Bathyswath 1 Standard Bathyswath 1 OEM
Transducers 1 to 3 1 to 3
Transducer extension cables 1 to 3 1 to 3 (option)
Electronics unit (Wet End Unit)    
Bathyswath electronics
 Yes Yes
Standard housing
 Yes No
Splashproof Housing
 Yes No
SWATH software; data acquisition, processing & 3D visualisation; unlimited licenses Yes Yes
Transducer mounting bracket Yes No
Rugged transit cases Yes No
12 month return-to-base warranty Yes Yes

 

MOUNTS & SPLASHPROOF HOUSING (OPTIONAL)

2 types of mounts are proposed: A Universal Mounting Kit to allow deployment on vessel of opportunity and a Side Mounting Kit for installation on RIBs. Note: Bathyswath system is supplied with a V-bracket for 2 or 3 transducers.
Splashproof Housing is an option for Bathyswath Standard.

Side Mounting Kit (for RIBS)                    

 

Side Mounting Kit (for RIBS)                                             Transducer Mouting Kit                                                      Splashproof Housing                   

        

SOFTWARE

Bathyswath data acquisition and processing software is included in system price but you can also interface to 3rd party software systems such as QINSy, SonarWiz, CARIS, Hypack, Fledermaus, Starfix and PDS2000.

 

 

DIFFERENCES BETWEEN BATHYSWATH-1 and SWATHPLUS

SWATHplus was manufactured and sold by Systems Engineering & Assessment Ltd. (SEA - www.sea.co.uk ) until August 2012. It was then taken over by ITER, who implimented some small improvements and renamed it Bathyswath.

There are indeed no major differences:

  • Transducers are all the same
  • Electronics are the same
  • Software is the same
  • The Splash-proof housing has changed and is limited to 2 transducers only
  • The Dry housing will change from the traditional blue box to a nice looking design

 

TECHNICAL SPECIFICATIONS

 
117 kHz
234 kHz
468 kHz
Operational slant range (m)
300
150
75
Maximum slant range (m)
350
200
80
Minimum depth (m)
0.3
0.2
0.1
Measurement resolution limit (mm)
12
6
3
Resolution detection limit
6
3
1.5
Across track resolution (cm)
5
2
1
Beam width, azimuth (2-way)
0.85°
0.55°
0.55°
Transmit pulse length (µs)
17 to 8500
8.5 to 4300
4.3 to 2100
Transducer dimensions (mm)
235 x 550 x 90
160 x 350 x 60
100 x 215 x 42
Transducer weight in air (kg)
13
6
1
Transducer weight in water (kg)
1.6
0.9
0.1
Max. cable length (m)
20
20
15
Power consumption (W)
 <25 (2 transducers)