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Innomar Workshop Seabed Acoustics

 

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Innomar SES-2000 AUV Sub-Bottom Profiler

Innomar SES-2000 AUV parametric sub-bottom profiler (electronics and transducer) for operation on autonomous unmanned vehicles (AUV) The Innomar SES-2000 AUV model performs like a Innomar SES-2000 compact SBP and is intended to be used on AUVs working up to 2,000m below sea level.

The high ping rate, a small footprint and the possibility of transmitting sound pulses over a wide frequency range ensure echoprints with excellent resolution and very good sediment penetration.

A user-friendly Windows data acquisition and system control software (SESWIN) is used for remote (Ethernet) operation. The Innomar SES-2000 AUV model acquires full-waveform data that can be processed with any seismic software (SEG-Y format). Innomar also provides the ISE post-processing software specialized on the Innomar SES-2000 SBP data.

 

Technical Specification

Range below transducer 1 – 200 m
Sediment penetration up to 40 m (depending on sediment type and noise)
Range / Layer resolution approx. 1 cm / up to 5 cm
Transmit beam width (-3dB) approx. ±2° / footprint <7% of altitude
Primary frequencies (PF) approx. 100 kHz (frequency band 85 – 115 kHz)
Primary source level >235 dB//µPa re 1m
Secondary low frequency (SLF) centre freq. user selectable: 8, 10, 12 kHz
(total frequency band 4 – 18 kHz)
Pulse width user selectable 0.08 – 0.5ms
Pulse type Ricker, CW
Ping rate up to 30 pings/s
Transceiver electronics ∅0.25m × L 0.40m / weight 10 kg in air
Transducer (2,000m rating) ∅0.47m × H 0.06m / weight 32 kg in air (water: 24 kg)
Heave / Roll / Pitch compensationheave (depending on external sensor data)
Data acquisition digital 16 bit @ ~70 kHz sample rate;
PF 100 kHz envelope echosounder data / bottom track;
SLF full-waveform sub-bottom data
Auxiliary Input GNSS, HRP sensor, trigger, altitude
Auxiliary Output trigger, bottom track
Power Supply 24 V DC / <80 W

 

Included Features

  • SLF full waveform data acquisition (sub-bottom data)

 

Software

  • SESWIN data acquisition software
  • SES Convert data converter software (SES/RAW to SEG-Y, XTF, ASCII)
  • SES NetView for display of online echoprints and system information on remote computers (via Ethernet) for QC
  • ISE post-processing software incl. GIS module

 

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Related Documents

 

Technical specifications are subject of change without notice.