HYDROACOUSTIC EQUIPMENT
SPLIT-BEAM RESEARCH ECHO SOUNDER (ERL 38)
OPPORTUNITIES
- Detection, and counting fish in a fish sparse clusters.
- Echo integration and sizing of various fish species.
- The emission of tonal pulses.
- Accumulation of hydroacoustic data.
- Export of hydroacoustic data to a file in the format *.hac for subsequent post-processing.
APPLICATION
ERL 38 is designed for installation on medium-tonnage and large-tonnage research vessels for the purpose of conducting hydroacoustic surveys to quantify the reserves of aquatic bioresources.
SPECIFICATIONS
|
Parameter name |
Parameter value |
|
|
1 |
Operating frequency, kHz |
38 |
|
2 |
Bandwidth, kHz |
10 |
|
3 |
Target strength minus 26 dB, m |
900 |
|
4 |
Range of range, m |
5000 |
|
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 256 до 4096 |
|
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. |
41 |
|
11 |
Power supply, V AC |
220 |
| 12 | Overall dimensions, mm electronic unit antenna unit |
380х300х175 Ø280х156 |
Equipment ERL 38
BASIC
1. Antenna unit with a cable length of 20 m.
2. Electronic unit (protection class IP66).
3. ERL 38 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. The satellite navigation receiver GLONASS/GPS.
8. Computer or laptop (possibly in a secure version).
9. Calibration sphere of tungsten carbide with a diameter of 38.1 mm.
10. Computer program (hydroacoustic simulator) for training techniques for working with the echo sounder (including calibration mode).
