Innomar "quattro" multi-transducer SBP

With its four transducers, the Innomar quattro multi-transducer sub-bottom profiler is designed for applications which need very high data density in extremely shallow waters. These applications include pipeline and cable surveys, risk mitigation at offshore building sites or archeological surveys.

The Innomar quattro 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 SBP data. For three-dimensional visualization of the sub-bottom data, Innomar provides a gridding tool and third-party visualization software.

Innomar also offers a multi-transducer SBP with six transducers, the Innomar sixpack model.

 

Innomar quattro parametric sub-bottom profiler data example showing a partly buried Viking Age wooden construction. Data rendered for 3D visualization.

 

Transducer Configurations

Four highly portable transducers can be assembled in different ways to provide optimal solutions for different survey tasks:

Quad beam mode (QBM) line array using single transducers → four survey lines per sailed profile highest data density for 3D visualisation transducers pinging subsequently transmitting and receiving using single transducers variable transducer separation (equidistant)
Quad beam mode with wide receiver (QBMW) line array using single transducers → four survey lines per sailed profile highest data density for 3D visualisation transducers pinging subsequently single transducer transmits, two transducers used for receiving transducers needs to be close together (equidistant) better resolution and penetration than QBM
Triple beam mode (TBM) line array using two transducers combined → three survey lines per sailed profile high data density for 3D visualisation at increased power transducer groups pinging subsequently (overlapping) transducers needs to be close together (equidistant)
Dual beam mode (DBM) line array using two transducers grouped → two survey lines; increased power transducers placed side by side or one in front of the other high data density for 3D visualisation transducer groups pinging subsequently variable separation of transducer groups (equidistant)
Single beam mode (SBM) all four transducers grouped → one survey line; maximum power transducers pinging together highest possible range / penetration transducers needs to be close together (equidistant)

 

Technical Specification

Quad Beam Mode (QBM, four individual transducers)
PF Source Level / Acoustic Power	>235 dB//µPa re 1m / ~2 kW
Transmit beam width (-3dB)	approx. ±2.5° for all frequencies
Water depth range	0.5 – 30 m
Sediment penetration	up to 20 m (depending on sediment type and noise)
Ping rate	up to 15 pings/s per transducer
Single Beam Mode (SBM, all transducers combined)
PF Source Level / Acoustic Power	>245 dB//µPa re 1m / ~4 kW
Transmit beam width (-3dB)	approx. ±1.5° for all frequencies
Water depth range	1 – 500 m
Sediment penetration	up to 50 m (depending on sediment type and noise)
Ping rate	up to 60 pings/s
System
Range / Layer resolution	approx. 1 cm / up to 5 cm
Primary frequencies (PF)	approx. 100 kHz (frequency band 85 – 115 kHz)
Secondary low frequencies (SLF)	centre freq. user selectable: 4, 5, 6, 8, 10, 12, 15 kHz
SLF total frequency band	2 – 22 kHz
Pulse type	Ricker, CW
Pulse width	user selectable 0.07 – 1.0 ms
Topside unit (transceiver)	0.52m × 0.40m × 0.34m (19''/7U) / weight 32kg
Transducer (incl. 15m cable)	4 × (0.21m × 0.21m × 0.06m / 8kg)
Heave / Roll / Pitch compensation	yes / no / no (depending on sensor data)
Data acquisition	digital 24 bit @ 96 kHz sample rate; PF 100 kHz envelope echosounder data / bottom track; SLF full-waveform sub-bottom data
Auxiliary Inputs	GNSS, HRP sensor, true heading, trigger
Auxiliary Outputs	trigger, bottom track, analogue LF
Power Supply	100–240 V AC / <300 W optional external DC power inverter (12 V or 24 V)
Control / Data Storage PC	internal PC (Windows® 10); included

 

Included Features

• 24 bit SLF full waveform data acquisition / Innomar "SES3" data format
• Multi-ping mode for maintaining a high pulse rate in deep waters
• Multi-frequency signals
• KVM extender for remote control
• SESWIN basic remote-control via COM / UDP (e.g. line start/stop, line name)

 

Optional Features

• SESWIN extended remote-control via Ethernet (TCP/IP)
• KVM extender for remote control
• external DC power adapter (12 V or 24 V)
• Rugged housing with shock absorbers (MIL standard, IP65)
• Transducer bracket for over-side-mounting

 

Software

• SESWIN data acquisition software
• SES Convert data converter software (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

 

Related Documents and Publications

Product Flyer:

• Innomar quattro sub-bottom profiler for shallow water
• Innomar software

Other Publications:

• Missiaen T, Evangelinos D, Claerhout C, et al. (2017): Archaeological prospection of the nearshore and intertidal area using ultra-high resolution marine acoustic techniques: results from a test study on the Belgian coast at Ostend-Raversijde. Geoarchaeology. 2017;1–15. (https://doi.org/10.1002/gea.21656)
• Missiaen, T.; Lowag, J. (2015): Case study for the application of the SES-2000 quattro system during marine archaelogical insvestigation near Ostend, Belgium.
• Missiaen, T. (2015): 2D and 3D acoustic investigation of a submerged archaeological site near Ostend, Belgium. Proc. Seabed Acoustics 2015, Rostock, Germany, Nov. 19–20, 2015.
• Lowag, J. et al. (2010): Three-dimensional investigation of buried structures with multi-transducer parametric sub-bottom profiler as part of hydrographical applications. Proc. Hydro 2010, Rostock-Warnemünde, Germany, Nov. 02–05, 2010.

 

Technical specifications are subject of change without notice.