HYDROACOUSTIC EQUIPMENT
SPLIT-BEAM RESEARCH ECHO SOUNDER (ERL 220)
- Quantitative assessment of stocks of aquatic bioresources in shallow water conditions in inland reservoirs and coastal marine fishing zones (traditional areal echo surveys).
- Counting the number of fish going to spawn (with the stationary installation of the echo sounder antenna at a sufficient depth near the shore or from an anchored boat or boat).
OPPORTUNITIES
- The detection and enumeration of a single fish.
- Echo integration and sizing of different fish species.
- Counting the number of fish going" along "and" against " the current (tracking).
- Accumulation of hydroacoustic data.
- Export of hydroacoustic data to a format file *.hac for subsequent post-processing.
APPLICATION
- ERL is designed for installation on small-and medium-tonnage research vessels for performing sonar surveys to quantify the reserves of aquatic bioresources.
- fish farmers in industrial and pasture aquaculture farms;
- owners of reservoirs to improve the efficiency of amateur and sport fishing;
- environmental specialists for environmental monitoring of controlled water areas.
SPECIFICATIONS
|
Parameter name |
Parameter value |
|
|
1 |
Operating frequency, kHz |
220 |
|
2 |
Bandwidth, kHz |
30 |
|
3 |
Target strength minus 26 dB, m |
150 |
|
4 |
Range of range, m |
300 |
|
5 |
Range resolution, cm |
до 2,5 |
|
6 |
The width of the directivity (XN) of one beam, degrees |
10 |
|
7 |
Type of radiated signals |
tone |
|
8 |
The duration of the emitted pulses, μs |
от 32 до 1024 |
|
9 |
The method of determining the direction to the target inside the solution XN rays |
“split beam” |
|
10 |
Kit weight “underwater unit - cable - conjugation unit”, kg. |
21 |
|
11 |
Power supply, V AC |
220 |
| 12 | Overall dimensions, mm electronic unit antenna unit |
380х300х175 Ø120х75 |
Equipment ERL 220
BASIC
1. Antenna unit with a cable length of 20 m.
2. Electronic unit (protection class IP66).
3. ERL 220 software as a part of: BY echo sounder, BY calibration, BY target force calculator.
4. Cable set: power supply and Ethernet.
5. Passport.
6. User manual.
ADDITIONAL (options)
7. Outboard device for attaching the antenna on board the watercraft.
8. Technological equipment for controlling the movement of the antenna unit during the calibration of the ERL 220 (for the outboard device for boats and dinghies).
9. GLONASS/GPS satellite navigation receiver.
10. Computer or laptop (possibly in a secure version).
11. A set of batteries with a charger (in the absence of a ship's power supply).
12. Calibration sphere made of tungsten carbide with a diameter of 38.1 mm.
13. Computer program (hydroacoustic simulator) for training techniques of working with the echo sounder (including calibration mode).
