The Omniscan 450 FS is ideally suited for forward looking ROV applications. The transducer and electronics are housed in a single enclosure with Ethernet + power interface. Two enclosure options are available for 100m or 300m depth rating.
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HS Code: 9015.80
Description
As the ROV or surface vessel moves, Cerulean SonarView “paints” the image of the scanned area of the sea floor giving excellent situational awareness in the murkiest conditions.
In the case of a surface vessel with GPS or an ROV with DVL, scanning is translational as well as rotational. For underwater vehicles without positioning information, Omniscan's Dopper Position Tracking can be used for translational information in the direction of the beam. Using a pair of Omniscan 450 FS units, one forward and one 90 degrees to either side, full 2d motion tracking is available. This also enables position hold mode.
Animated screen capture of SonarView illustrating how vehicle motion scans the seafloor. This is not a simulation. It is screen capture of SonarView replaying an actual Omniscan log file.
Operator Scanning
Using Omniscan 450 FS on an ROV, the scanning is under the direct control of the ROV driver so that they can focus on specific areas of interest rather than waiting for a mechanical scanning sonar to slowly come around to sweep the particular sector they want to see. Using the “Heading Up” mode in SonarView makes this manual scanning very intuitive and provides excellent situational awareness.
Rendering of Omniscan 450 FS with optional mounting bracket on a BlueROV2.
Omniscan SonarView in Heading Up Mode.
Product Specifications
| Viewing Software | SonarView by Cerulean |
| Frequency | 450 kHz |
| Range Resolution | Up to 1/1200 of range setting |
| Maximum Ping Rate | 20 pings per second up to 30m range, thereafter limited by range and speed of sound. Examples: 10 pps @ 50m, 5 pps @ 140m range setting |
| Power Supply | 10-30 Volts, 5 watts max at idle, 10 watts max while pinging |
| Data Interface | 100BaseT Ethernet |
| Electrical Connection | Single cable with 4 pin JST for data (Blue Robotics Ethernet standard), plus a wire pair for power. Adapter provided for standard RJ-45 ethernet connection. |
| Maximum Range | 100m |
| Far Field (Note 1) | 7m |
| Beam Width (Note 2) | 0.8° |
| Beam Height | 50° |
| Maximum Operating Depth | 100m and 300m versions |
| Weight in Air | 440g(100m), 825g(300m) |
| Weight in Water | -60g(100m), +325(300m) |
| Overall Dimmensions | 55x67x200m |
Note 1: Far Field distance is the range beyond which the beam width specification is valid. At nearer distances the effective beam width gets wider, and sidelobes get larger. Note 2: This is the nominal theoretical 2-way (transmit and receive) 3dB beam width.