SeaKing Hammerhead, High Resolution Survey Sonar - Tritech

The SeaKing Hammerhead Survey Sonar utilises a wide transducer aperture, very fine mechanical step size and proven digital sonar technology to create high resolution imagery. Using the 675 kHz frequency it is possible to obtain an overview of the site at up to 100 m range and the 935 kHz frequency allows a very high resolution scan at a range up to 40 m.

The latest addition to the SeaKing family of imaging scanning sonars, the Hammerhead can easily be networked with other SeaKing equipment. Combining a resolution twice that of other mechanical sonars, and an ultra-narrow horizontal beam angle, the dual frequency SeaKing Hammerhead is a truly versatile survey sonar. To complete the package a fully integrated attitude sensor and compass are included to enable accurate logging of survey data.

Applications

• Static seabed surveys
• Object location
• Diver Monitoring
• Law Enforcement and recovery
• ROV Deployment

Benefits

• Built-in compass for bearing reference
• Attitude sensor for accurate positioning
• Dual seal arrangement for reliability
• Image tiler software for map creation

Features

• 675 kHz or 935 kHz operation
• Up to 100 m range
• 700 m or 4000 m depth rating
•  Auto-sensing communications

Key Specification

• Operating frequency - 935 kHz & 675 kHz
• Range - 0.4 m to 100 m
• Depth rating - 700 m or 4000 m
• Weight in air - 6.8 kg
• Weight in water 3.8 kg

Acoustic

• Operating frequency High frequency - 935 kHz, Low frequency - 675 kHz
• Beamwidth - High frequency 20° vertical, 0.6° horizontal, Low frequency 30° vertical, 0.9° horizontal
• Maximum range 40 m 100 m
• Minimum range 0.4 m
• Range resolution 7.5 mm

Sonar display

• Range selections 2 m to 100 m
• Scan resolutions 0.225°, 0.45°, 0.9°, 1.8°
• Continuous 360° Yes
• Offset sector scan Yes
• Attitude information Angle of sonar body to vertical (2 axes)

Electrical and Communication

• Operating voltage 20 to 72 Vdc
• Power requirement 55 W (Ave.)
• Communication Protocol & Rate ARCNET: 156 kbit·s-1 (maximum) RS485: 115.2 kBd (maximum) RS232: 115.2 kBd (maximum)
• Connector options Burton (standard) Others available on request

Physical specifications

• Weigth in air 6.8 kg
• Weigth in water 3.8 kg
• Materials Aluminium alloy (hard anodised)
• Depth rating 700 m or 4000 m
• Operating temperature -10 °C to 35 °C