MD300 High resolution bathymetry survey system
1.Depth range: 0.6 to 200 m
2.Resolution: 0.01 m
3.Number of channels: 1 to 64
MD300 High resolution bathymetry survey system
MD 300 is an echo sounder system for shallow water, high resolution swath bathymetry surveys. Supporting up to 64 transducers, the system provides fast mapping of seabed topography with superior accuracy, and is the ideal tool for:
Hydrographic surveys to IHO standards |
Fairway and channel surveys to ensure safe navigation |
Planning, construction and maintenance of harbours |
Pre- and post-dredging surveys to assess volumes |
Obtaining data for flood modelling and environmental studies |
Route surveys for submarine cables and pipelines |
The system hardware is compact and modular, allowing easy transportation and field upgradeability.
The MD software package is an integral part of the MD 300 system, and it supports all the stages of a survey, from the graphical definition of a survey plan through real-time mission support and timely data logging to expedient processing of the survey data.
The deliverables for an MD 300 system consist of the following:
MD 300 echo sounder unit
A remotely controlled unit plugged into a PC and controlled through a digital interface. Programmable system parameters include pulse length, gain, sound velocity, ping rate and ping interleaving. The echo sounder unit can be equipped with any number of channels between 1 and 64, operating on any frequency in the range 12 kHz to 1 MHz.
Technical data
| Depth range: 0.6 to 200 m |
| Resolution: 0.01 m |
| Number of channels: 1 to 64 |
| Operating frequency: 100 kHz or 200 kHz standard, others on request |
| Casing: each sub-unit of max. eight channels is fitted in 19" rack mountable 3U chassis, dimensions 133*448*301 mm |
| Transmission pulse length: 0.01 to 2.00 milliseconds, adjustable in 0.01 ms steps |
| Ping rate: 1 to 25 per second each channel |
| Gain control: TVG, master gain, channel gain |
| Sampled echo levels: up to 64 |
Survey computer | MD 300 interfaces with PCs and workstations via a high speed digital link. All other requisite sensors (see below) are connected to the survey computer as well. |
| Positioning system | A GPS connected to the survey computer allows geo-referencing of the acquired soundings. |
| Other survey instrumentation | A survey system can be configured to comprise virtually any type of sensor capable of transmitting data via an electrical interface. Typically used sensors are gyrocompasses, motion reference units and tide measurement systems. |
Below are example maps showing MD 300 bathymetry data:
Three-dimensional illustration of the seabed on a fairway in the Baltic Sea. Built of 0.6 million depth points, covering approximately 600 m by 400 m.
Shaded relief image with overlaid depth contours of the same area. Large boulders are clearly visible, especially in the northeast portion of the area.
