Posted on March 4th, 2021.
In March 2021 the first unit of the new “Innomar compact” SBP generation has been commissioned. The topside unit dimensions are 33% smaller and the weight is reduced by 20% compared to the previous generation.
Innomar “compact” Sub-Bottom Profiler
The Innomar compact model was designed for inshore surveys in shallow-water down to 400 metres water depth, but can also be used in coastal areas.
Because of its small size and weght this system is convenient even on small boats. Controlled via Ethernet using any Windows based PC or laptop it is a user friendly and affordable design, too.
The Innomar compact 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.
This model has been first launched as “SES-2000 compact” in 2002, the latest generation has been introduced in 2021.
For survey examples please see also Extremely Shallow Water Applications and Shallow Water Applications.
For the Innomar compact SBP model there is a Sidescan Extension available.
Innomar compact parametric sub-bottom profiler echoprint data example
(water depth 1–2m; range 1–15m below sea level; frequency 10kHz; pulse width 0.2ms).
Technical Specification
| Water Depth Range | 0.5 – 400 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 water depth |
| Primary Frequencies (PF) | approx. 100 kHz (frequency band 85 – 115 kHz) |
| PF Source Level / Acoustic Power | >238 dB//µPa re 1m / ~2.3 kW |
| Secondary Low Frequency (SLF) | centre freq. user selectable: 4, 5, 6, 8, 10, 12, 15 kHz (total frequency band 2 – 22 kHz) |
| Pulse Width | user selectable 0.07 – 1.0 ms |
| Pulse Type | Ricker, CW |
| Ping Rate | up to 50 pings/s |
| Topside Unit (Transceiver) | W 0.30m × D 0.40m × H 0.20m (½19”/4U) / 15kg |
| Transducer (20m cable) | W 0.34m × D 0.26m × H 0.08m / 22kg incl. cable |
| Heave / Roll / Pitch Compensation | heave (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 |
| Auxiliary Output | trigger, bottom track |
| Power Supply | 100–240 V AC / <150 W optional external DC power inverter (12 V or 24 V) |
| Control / Data Storage PC | external (e.g. laptop PC); not included |
Included Features
- SLF full waveform data acquisition (sub-bottom data) / Innomar “RAW” data format
- Multi-ping mode for maintaining a high pulse rate for water depths more than 50 meters
- Multi-frequency signals
Optional Features
- Sidescan extension (100kHz; interchangable with SBP transducer)
- external DC power adapter (12 V or 24 V)
- Pre-configured laptop PC (control unit)
- Transducer bracket for over-side-mounting
- Transducer frame with integrated shock absorbers for hull-mounting
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