NORBIT iWBMSh
NORBIT iWBMSh
An integrated multibeam system using Applanix OceanMaster GNSS/INS for demanding survey conditions. Improved attitude performance supports coastal and offshore mapping, structure inspection and operations where vessel dynamics place greater demands on motion compensation.
Position and motion correction with OceanMaster
iWBMSh combines sonar observations with OceanMaster GNSS/INS position and attitude measurements. The integrated platform supports coastal and offshore bathymetry, pipeline surveys and structure inspection. Heading accuracy should be read together with antenna spacing and RTK conditions. Standard and narrow-beam options differ; features of iWBMSh STX or Stabilised versions are not automatically included in the standard iWBMSh package.
Applications and survey workflow
Bathymetric data supports harbour maintenance, dredging assessment, route surveys and the inspection of submerged infrastructure. Survey line spacing and frequency are selected to balance feature definition, coverage and the expected water depth.
Before mobilisation, the survey team defines the coordinate system, vertical reference and required deliverables. Mounting geometry, sensor offsets and time synchronisation are checked as one installation. Positioning quality, vessel motion and sound-speed conditions are reviewed during acquisition so that the final dataset can be assessed against the project specification.
Integration and deliverables
The selected hardware and software configuration determines the available outputs and interfaces. A practical workflow includes installation checks, a trial line, field quality control and documented processing. Depending on the sensor, deliverables may include a bathymetric surface, an inspection image, a point cloud or an interpreted sediment profile. Kordil can evaluate the platform, operating environment and intended use when defining the system configuration.
Technical specifications
| GNSS/INS | Applanix OceanMaster |
|---|---|
| Frequency | 400 kHz nominal; 200–700 kHz |
| Swath sector | 5–210° |
| Ping rate | Up to 60 Hz |
| Housing depth rating | 100 m |
| Interface | Ethernet |
| Acoustic depth range | 0.2–275 m; typical 160 m |
| Beam width @ 400 kHz | 0.9° × 1.9° standard; 0.9° × 0.9° narrow-beam option |
| Range resolution | <10 mm; 80 kHz bandwidth |
| Roll / pitch accuracy | 0.01° |
| Heading accuracy | 0.02° RTK; 2 m antenna separation |
| Power | 60 W |
Specifications follow the original manufacturer brochure PS-150010-10. 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.
Technical brochure
NORBIT iWBMSh original technical brochure — English PDF (PS-150010-10)