Super Seaking DST Dual Frequency Digital CHIRP Sonar - Tritech

The V7 Super SeaKing DST mechanical scanning sonar now offers enhanced performance and the option of Ethernet communication for high speed scanning over short ranges.  Retaining dual frequency capability, the Super SeaKing DST can achieve 300 m range at 325 kHz, with increased image intensity and with improved mid-water target discrimination capability at 650 kHz. The SeaKing is further enhanced with a software controlled power isolation switch for Auxiliary Port output. Ideally suited for ROV/AUV obstacle avoidance, target recognition and harbour surveillance, the Super SeaKing DST can be supplied to operate down to 4000 m or 6800 m. Aluminium and Titanium housings are available as well as a number of connector options. The default configuration of the Super SeaKing DST utilises Tritech’s propriety connector, upgraded to provide Ethernet communication capability while retaining all of the benefits of this industry recognised connector. With the option of Ethernet, ARCNET, RS232 and RS485 communications, the Super SeaKing DST is simple to install on ROV/AUVs of all types.

Applications

• ROV/AUV obstacle avoidance
• Target recognition
• Harbour surveillance
• Port security

Benefits 

• Multiple communications options
• Reliable, robust, proven design
• Two operating frequencies
• Easy integration

Features

•  Ethernet, ARCNET, RS232 and RS485
• Composite material transducer
• 4000 m or 6800 m depth rating
• Digital CHIRP

Key Specification  

• Operating frequency -  Low Frequency Mode CHIRP centred on 325 kHz, High Frequency Mode CHIRP centred on 650 kHz
• Range -  Low Frequency Mode 0.4 m - 300 m, High Frequency Mode  0.4 m - 100 m 
• Power requirement 20 to 72 Vdc at 8 W
• Main port protocol ARCNET / Ethernet / Serial (RS232/ RS485)
• Dimensions 242 mm x 99 mm
• Depth rating 4000 m - 6800 m 
• Weight in air (al.) 3.00 kg
• Weight in water (al.) 1.40 kg

Acoustic Specifications 

• Operating frequency - Low Frequency Mode CHIRP centred on 325 kHz, High Frequency Mode CHIRP centred on 650 kHz
• Beamwidth - Low Frequency Mode 20˚ Vertical, 3.0˚ Horizontal, High Frequency Mode 40˚ Vertical, 1.5˚ Horizontal
• Pulse length  - Low Frequency Mode 400 μs, Horizontal, High Frequency Mode 200 μs
• Range - Low Frequency Mode 0.4 m - 300 m, High Frequency Mode  0.4 m - 100 m 
• Range resolution - Approximately 15 mm (minimum)
• Mechanical resolution - 0.45˚, 0.9˚, 1.8˚, 3.6˚
• Source level -  210 dB re 1 μPa at 1 m
• Scanning sector-  Variable up to 360˚

Electrical and Communications 

• Power requirement 20 to 72 Vdc at 8 W
• Main port communications - ARCNET variant ARCNET or Serial (RS232 / RS485), Ethernet variant Ethernet or Serial (RS232 / RS485)l
• Aux port communications - ARCNET variant ARCNET or Serial (RS232 / RS485), Serial (RS232 / RS485)
• Maximum data rate¹ - ARCNET variant ARCNET: 156 kbit-s Serial RS232/485: 115.2 kBd, Ethernet variant Ethernet: 100 Mbit-s Serial RS232/485: 115.2 kBd
• Connector options^{2 -} Tritech 6-pin waterblock (Others available on request)

Physical specification   

• Depth rating - Aluminium 4000 m, Titanium 4000 m, Titanium 6800 m 
• Weight in air - Aluminium 3.00 kg   Titanium 4.10 kg   Titanium 4.80 kg 
• Weight in water - Aluminium  1.40 kg,  Titanium 2.50 kg,   Titanium 2.90 kg 
• Temperature rating (operating) -10 °C to 35 °C 
• Temperature rating (storage) -20 °C to 50 °C 

Specification subject to change in line with Tritech’s policy of continual product development

¹ ARCNET Line driver: 1500 m at 156 kbit-s, 2500 m at 78 kbit-s
² 6800 m sonar fitted with Seacon Connector