WBMS STX
Norbit WBMS STX
WBMS STX
STX imaging with external navigation
WBMS STX addresses electronic scanning and three-dimensional underwater imaging in installations using external navigation sensors. Structure inspection, dredging monitoring and fixed-position target observation can be supported by separately selected position and motion systems. Sensor timing and mounting offsets are required to georeference the imagery. A deep-water housing option should not be interpreted as the acoustic range of the sonar.
Survey workflow and quality control
Before mobilisation, the coordinate system, vertical reference, antenna offsets and sonar mounting geometry are defined. Sound-speed profiles, time synchronisation and angular alignment are checked during trial lines. Sonar observations are assessed alongside position and motion data, with overlapping lines and cross lines used to check consistency.
Deliverables can include a bathymetric surface, sections, a seabed model for volume calculations or structure inspection data, depending on the application. Acoustic resolution alone does not represent final georeferenced survey accuracy. Water depth, seabed material, vessel motion and selected software options are considered together when specifying the system.
Technical specifications
| Frequency | 400 kHz nominal; 200–700 kHz |
|---|---|
| Acoustic depth range | 0.2–275 m; typical 160 m |
| Beam width | 0.9° × 0.9° @ 400 kHz; 0.5° × 0.5° @ 700 kHz |
| Beams / sector | 256–512; 5–210° |
| Range resolution | <10 mm |
| Ping rate | Up to 60 Hz |
| Power / weight | Approximately 50 W; in air 5.4 kg, in water 3.1 kg |
| Interface | 100 Mbit/s Ethernet |
| Housing depth rating | 100 m; 4,500 / 6,000 m options |
Specifications follow the original manufacturer brochure PS-160009-6. Acoustic range is distinct from housing depth rating. Options and operating conditions affect achievable performance.
The technical reference for this model is the existing original brochure revision. Current hardware options and availability should be confirmed for the project.