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SYSTEM HIGHLIGHTS
- 1.
- 6000m depth capability
- 2.
- 30kHz sidescan sonar with 6km swath range
- 3.
- Swath bathymetry system uses sidescan transmit signal for a
fully co-registered data set.
- 4.
- 7.5kHz sub-bottom profiler sonar giving up to 70m penetration
into soft sediments
- 5.
- Tri-axial fluxgate magnetometer and gyrocompass combine to
give local magnetic field measurement and orientation.
BRIEF TECHNICAL SPECIFICATIONS
- 1.
- Mechanical
- (a)
- Towing method Two bodied tow system using neutrally buoyant vehicle and
600kg depressor weight.
- (b)
- Size 4.5m x 1.5m x 1.1m (length x height x width).
- (c)
- Weight 2200kg in air.
- (d)
- Tow cable up to 10km armoured coax.
- (e)
- Umbilical 200m long x 50mm diameter, slightly buoyant.
- (f)
- Tow speed 1.5 to 3 knots (dependent on tow length).
- 2.
- Sonar Systems
- (a)
- Sidescan Sonar
- i.
- Frequency 30.37kHz (starboard) 32.15kHz (port).
- ii.
- Pulse Length 2.8ms.
- iii.
- Array Length 3m.
- iv.
- Ouput Power 600W each side.
- v.
- Range 3000m each side.
- vi.
- Beam Pattern 0.8 x 45 degree fan.
- (b)
- Bathymetry Sonar
- i.
- Transmitter uses sidescan sonar.
- ii.
- Receiver 6 hydrophone arrays in 2 housings for each side.
- iii.
- Array Length 3m.
- iv.
- Detection Single and multi-phase.
- v.
- Range Up to 3000m each side.
- (c)
- Profiler Sonar
- i.
- Frequency 7.5kHz.
- ii.
- Pulse Length 0.26ms.
- iii.
- Output Power 500W.
- iv.
- Range Up to 70m penetration over soft sediment.
- v.
- Resolution less than 1m.
- vi.
- Beam Pattern 25 degree cone.
- 3.
- Standard Instrumentation
- (a)
- Magnetometer Ultra Electronics Magnetics Division MB5L.
- i.
- Range +/- 100,000nT on each axis.
- ii.
- Resolution 0.2nT.
- iii.
- Noise +/- 0.4nT.
- (b)
- CTD Falmouth Scientific Instruments, Micro CTD.
- i.
- Conductivity
- a.
- Range 0 to 65 mmho/cm.
- b.
- Resolution 0.0002 mmho/cm.
- c.
- Accuracy +/- 0.005 mmho/cm.
- ii.
- Temperature
- a.
- Range -2 to 32° Celsius.
- b.
- Resolution 0.0001° C.
- c.
- Accuracy +/- 0.005° C.
- iii.
- Depth
- a.
- Range 0 to 7000 dbar.
- b.
- Resolution 0.02 dbar.
- c.
- Accuracy +/-0.12<
- iv.
- Heading S.G. Brown SGB 1000U Gyrocompass.
- a.
- Resolution 0.1 degrees.
- b.
- Accuracy Better than 1°, latitude less than 70 degs.
- v.
- Pitch/Roll Dual Axis Electrolytic Inclinometer.
- a.
- Range +/- 20 degrees.
- b.
- Resolution 0.2 degrees.
- vi.
- Altitude Taken from profiler sonar.
- a.
- Range 1000m.
- b.
- Resolution 1m.
Next: MAGNETICS
Up: TOBI SIDE-SCAN SONAR
Previous: TOBI SIDE-SCAN SONAR
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G.Bortoluzzi
1999-10-16