| Brand |
BioSonics, Inc. |
| Year of initial development |
1978 |
| Product |
BioSonics DT-X Digital Scientific Echosounder System |
| Max. power consumption (W) |
50 |
| Power (DC, AC) |
11-14VDC (5A max.), 87-264VAC (47-440Hz) |
| Weight (in air) and dimensions (w x h x d) of transducer/transceiver |
16kg (with transducer and cable). Transceiver: 43cm x 50cm x 19cm. Transducer: 18.5cm D x 16cm L |
| Weight and dimensions (w x h x d) of display and logging unit |
Notebook computer of user choice |
| Portability of logger (rack, desktop, portable) |
Portable, rack optional |
| Software platform (Windows, other) |
Windows |
| Depth range of operation (m) |
1000 |
| Frequency range (kHz) |
38, 70, 120, 200, 420, 1,000 |
| Number of frequencies supported simultaneously |
Up to 4, multiplexed and programmable |
| Power output of transducer at standard frequencies |
< 1kW |
| Beam angles (along and across) |
6° or 10° (38kHz) |
| Depth resolution, accuracy |
2cm |
| Max. pulse sounding rate |
30Hz |
| Pulse length |
0.1-1.0ms |
| Dynamic range (dB) |
> 130 |
| Are heave, pitch and roll corrections included? |
Optional: heading, pitch, roll |
| Capable of being operated remotely (e.g. via PC) |
Yes |
| Supported external data inputs (heave/roll/pitch, positioning) |
None |
| Can events and annotations be marked? |
Yes |
| Can sound velocity and temperature profiles be included in real time ? |
No |
| Is real-time coupling to survey/post-processing software possible? |
No |
| What data are displayed in real time (e.g. depth, classification, thickness)? |
Depth, echo strength, position |
| Data output options (e.g. raw data, transducer and motion-corrected depth, sea floor classification) |
Raw acoustic data samples; post-processing for all variables other than depth |
| Data output formats |
BioSonics DT-4, ICES HAC format |
| Data output for sea floor classification? |
Post-processing only |
| How are data displayed? |
Visual echogram, digital depth and position. Echo envelope on oscilloscope |
| Connection possibilities |
Ethernet |
| How are data internally logged? |
Depends on notebook computer. Solid-state drive internal to echosounder system option |
| Main use of the system |
Habitat assessment (bathymetry, substrate classification, vegetation assessment and biological biomass) |
