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The unit can operate in
Wideband™ or tone mode and against a variety of systems
and transponders. It is also fully compatible with Sonardyne’s
family of LBL and USBL survey quality navigation systems.
AvTrak has a comprehensive
yet easy to use command language that allows the AUV to
undertake simultaneous LBL ranging, USBL tracking via a
surface vessel and robust and high speed telemetry both
for AUV to vessel and for AUV to AUV communications. This
capability provides the AUV designer with good quality absolute
position reference data to constrain the drift in his inertial
navigation system.
The instrument is available
in a variety of configurations including 600m, 3,000m and
6,000m depth rated housings, screened chassis option for
mounting within the main AUV pressure vessel, omni and directional
transducers for shallow and deep operations respectively,
and integral or remote acoustic transducer options for ease
of installation.
An internal ‘watchdog’
option monitors AUV comms activity and can switch the unit
into transponder mode for emergency relocation. This is
supported by an internal back up battery and digital I/O
for emergency ballast jettison.
Sonardyne has extensively
modelled the performance of AvTrak 2 to achieve an optimum
design. This capability is available to customers to assist
in arriving at the best possible configuration for their
AUV. Advice on transducer installation and its impact on
system performance is also available.
Technical Specifications
| System Features |
|
Type 8065 |
| Frequency Band |
|
MF (19-36kHz) |
| Source Level (re 1 µPa @ 1m) |
Omni
Directional |
188 dB
193 dB |
Range Measurement
Repeatability / Accuracy |
Wideband
Tone |
1cm / 3cm
10cm / 30cm |
| Telemetry |
Robust Wideband SMS
HDRL (High Data Rate Link) |
1,500 baud
Up to 15,000 baud |
Transponder Compatibility
(* = Wideband & Tone Operation) |
|
Wideband Sub-Mini*, Compatt 5*, SSM,
Compatt 4, HiPAP Series |
| Pinger Detection (Wideband
Only), Max No of Pingers |
4 |
| Digital Input / Output |
4
plus event sync |
| Internal Sensors |
Pressure
and Temperature |
| Communications Interface |
RS232
/ 485 (9,600 – 38,400 baud), event sync |
| Main Housing Features
|
|
Type 8065 |
Dimensions
(# = with connector and battery) |
(# = with connector and battery) Board Set
Chassis
600m housing #
3,000m housing #6,000m housing # |
260mm x 65mm
311mm x 80mm x 80mm
445mm x 95mm
445mm x 95mm445mm x tba
|
Weights in Air / Water
(# = with connector and battery) |
Board Set
Chassis
600m housing #
3,000m housing #
6,000m housing # |
1.7kg
2.85kg / 0.25kg
4.9kg / 2.1kg
tba |
| Voltage 24-50
Volts |
| Power |
Listening (transponder mode)
Quiescent
Peak (during transmission) |
25mW
<2W (<1W option)
<50W |
| Emergency Internal Battery
Pack |
Listening
Continuous 4 sec interrogation |
30 days
Approx 2 days |
| Main Housing Features
|
|
Type 8065 |
| Transducer |
|
Omni or Directional |
| Dimensions |
3,000m housing (ex moulding)
6,000m housing |
224mm x 95mm
224mm x tba |
| Weights in Air / Water
|
|
2.5kg / 1.1kg
tba |
Features:-
- Incorporates Sonardyne's latest Wideband
TechnologySonardyne Wideband
Technology.
- Compatible with Fusion USBL for surface
vessel combined telemetry and positioning
- Combined telemetry and positioning
- Supports AUV to AUV ranging and telemetry
- Two telemetry modes: ‘robust’
and ‘high data rate’
- Designed for Doppler immunity
- Emergency relocation modes
- Digital I/O, e.g. for emergency ballast
control
- Extremely low power consumption
- Surface unit available for AUV ranging
and communications
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