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System Variants: SES-2000 medium

SES-2000 medium Hardware

The system SES-2000 medium is based on the SES-96 product line, which is the first mobile parametric sediment echo sounder on the international market.
The compact design with an user friendly control unit allows the survey not only in small and shallow waters but also near shore  with all the advantages of the parametric acoustics, like the small beamwidth at low frequencies, deep penetrations with high resolutions of layers and objects and very accurate depth measurements with the high frequency.
The system has the possibility to store the data digitally but gives also during the online processing excellent and reliable results.

The variant SES-2000 medium is designed for medium water depth applications near shore and in shelf areas down to 2000m.

Technical Parameters

Transducer:

 nonlinear transmitter, linear receiver
beamwidth +/- 1,0° (0,45 x 0,40)m2
Transmitter: primary frequency:
secondary frequencies:
electrical power:
source level:

electronical beam stabilization

100 kHz
3.5, 5, 6, 8, 10, 12,15 kHz
>50 kW
>250 dB/µPa re 1m
Pulse Width: 66 µSec ... 1200 µSec
chirp signals (5kHz to 15kHz)
Pulse Repetition Rate:

 up to 50/sec depending on range
Water Depth Range:

 5m ... 2000 m
Operating Ranges:

 5m ... 200 m
Sound Velocity Range:

 1400 m/s ... 1600 m/s
Penetration:

 up to 50 m depending on sediments and frequency
Resolution:

 sampling resolution: > 1 cm
multiple target resolution: > 5 cm
depending on frequency and operating range
Accuracy:


 100 kHz : 0,02 m + 0,02 % of water depth
10 kHz : 0,04 m + 0,02 % of water depth

Trigger:


 internal: depending on time control, output available
external: input available, TTL compatible

Receiver Channels:

 1 channel primary frequency
1 channel secondary frequency

Gain Controls:

 AGC or manual 0 ... 96 dB in 6 dB steps
Time Variable Gain
Digitization:

 16 bit (real dynamic 14 bit)

Signal Processing: noise reduction: stacking rate up to 64
DSP to increase signal to noise ratio, resolution and
penetration,
online view of processed echo data,
replay of recorded data

Data Output: online storage of echo envelope in chosen range,
 online storage of raw signal in chosen range,
system parameters and navigation data on hard disk
backup: USB 2.0 interface for HD, MO-Disk or others
serial output for depth, time, position
online colour echo prints and thermal recorder prints

Data Input: serial input for navigation data (NMEA compatible)
serial input for motion sensor for heave compensation
and roll/pitch compensation
remote control via TCP/IP network
System Components: SES-2000 medium with integrated transmitter, receivers,
DSP´s, 10,4" TFT panel and PC unit:
(0,53 x 0,42 x 0,85)m3 / total weight 98 kg (two electronic units)
transducer with 30 m cable (0,50 x 0,50 x 0,12 ) m3 /
weight 72 kg (including cable)
Operating Conditions: 115-230 V AC +5%/-10%, 50 - 60 Hz,
power consumption < 2000 W
operating temperature: 0°C ... 40 °C

Optional Features: water protected case in MIL standard
module Side Scan with separate transducer



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