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System Variants: SES-2000 Side Scan Option



SES Side Scan Transducer

The Side Scan Option for the SES systems is a very useful tool for applications which require different survey techniques to get as most as possible information and not only sub-bottom data. For example the dredging industry can benefit from surveying an area with the side scan very quickly to find rock outcrops or stones and obstacles and later on to survey the area with the sub-bottom profiler to get data about embedded structures and sediment layering. Also archaeological surveys, pipeline tracking surveys, preinvestigation surveys of construction sites (e.g. wind parks) or the classification of the seabed are common applications for such a side scan instrument.
The SES transducer is replaceable with the parametric transducer very quickly and the same system configuration can be used to survey the area of interest. The side scan works with the frequency of 100kHz. The same user friendly operating software is used to control the side scan, to record, process and print the data.
The SES systems are upgraded with the transducer and a software update, which makes the side scan option very affordable. Only one third of the costs for a complete new side scan sonar system is required.

Technical Parameters

Transducer:

Horizontal beam width: +/- 0,9°
Vertical beam width +/- 35,0° at each side

Transmitter: Frequency:
electrical pulse power:
source level:

100 kHz
>4 kW
220 dB/µPa re 1m
Pulse Width: 100 µSec ... 250 µSec

Pulse Repetition Rate:

up to 25/sec depending on range
Operating Range:

20 m ... 100 m to each side
Resolution:

sampling resolution: > 2 cm
multiple target resolution: > 15 cm
depending on pulse length and operating range

Trigger:


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

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, DSP to increase signal-to-noise ratio, 
and resolution enhancement
Slant Range Correction
online view of processed echo data,
replay of recorded data

Data Output: online storage of echo envelope in choosed 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 and ASCII compatible)
serial input for motion sensor for heave compensation
remote control via TCP/IP network

System Components: Side Scan transducer, which is replaceable with the parametric
transducer (0,49m x 0,08m x 0,12m) / weight 18 kg (including cable)
Hull mounted or over the side mounted

Operating Conditions: 115-230 V AC +5%/-10%, 50 - 60 Hz,
power consumption < 800 W
operating temperature: 0°C ... 40 °C

Optional Features: Post Processing Software for Mosaics



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