Geo Acoustics – GeoPulse 2
The GeoPulse 2 is a significant upgrade for the industry-proven GeoPulse and GeoPulse + systems which are renowned for their reliability, ruggedness, ease of operation and flexibility.
The GeoPulse 2 deck unit is a drop-in replacement for the original GeoPulse transmitter (5430P) using the same deck cable and connector and also replaces the need for the separate GeoPulse Receiver (5210A). It offers a range of programmable source signatures including CW, Chirp and Ricker and output power is continuously adjustable up to 10 kW.
The complete sub-bottom profiling system comprises of the GeoPulse 2 transceiver which is connected to either 4, 9 or 16 T135 transducers. 4 transducer arrangements can either be hull mounted or in an over-the-side mount assembly (Model 132). Hull mounting is used for 9 and 16
transducer configurations.
| KEY FEATURES | |
| Frequency range 1.5-18 kHz | |
| Output power up to 10 kW | |
| Resolution 6 cm | |
| Penetration up to 80 m | |
| Over-the-side or hull mounted | |
| Third party software integration |
| APPLICATIONS | |
| Pipeline detection | |
| Geological surveys | |
| Dredging surveys | |
| Environmental surveys | |
| Buried object detection |
| DECK UNIT | |
| Mechanical :Aluminium case | |
| Dimensions :Dimensions: 430 mm (W) x 440 mm (D) x 180 mm (H) | |
| ENVIRONMENT | |
| 0 °C – 40 °C, -20 °C – 75 °C (storage) | |
| < 95 % RH, non-condensing (operation) | |
| CONNECTORS | |
| Power in, deck cable (up to 50m), 3 x Serial | PPS input, external trigger input | |
| Indicators : Power on, HV, Time sync, Sonar Active, Cable Fault | |
| POWER | |
| Power :Power Input: 200-240 V AC, 20A, 50/60 Hz | |
| SERIAL | |
| Serial :3 x RS232 with overvoltage protection | Range of baud rates selectable | |
| PPS: TTL level, protected, edge selectable |
| ACQUISITION SOFTWARE | |
| Type: SonarWiz fully featured SBP with control interface (locked for use with GeoPulse 2 | |
| Features: Control of all system parameters | Full range of processing tools | Data export in industry standard formats | 1 year of maintenance included |
| TRANSDUCER | |
| Output Power 10 kW peak (adjustable as % of full scale) | |
| WAVEFORMS | |
| Pinger: Frequency & cycles select: 1 – 32 cycles (1 cycle steps). 1.5 – 18 kHz (0.1 kHz steps) | |
| Ricker: Spread spectrum (by highest frequency component). 4kHz – 15 kHz (0.1 kHz steps) | |
| Chirp: Range of sweeps available with 5, 10 or 15 kHz bandwidth, 8, 16 or 32 ms length, using frequencies between 1.5 kHz – 18 kHz | |
| PERFORMANCE | |
| Rep Rate Up to 20 PPS (waveform dependent) | |
| Source Level 217 dB ±3 dB re 1 μPa @ 1 m (4 transducers) | 221 dB ±3 dB re 1 μPa @ 1 m (9 transducers) | 224 dB ±3 dB re 1 μPa @ 1 m (16 transducers) | |
| Beamwidth 55° using 3.5 kHz (combined mode, 4 transducers) | 40° using 3.5 kHz (combined mode, 9 transducers) | 30° using 3.5 kHz (combined mode, 16 transducers) | |
| RESOLUTION & PENETRATION | |
| Resolution up to 6 cm | |
| Penetration Up to 80 m (fine clay), up to 20 m (sand) | |
| ACQUISITION | |
| Dual channel, 800 kHz front end sampling, 50/100 kHz sample output, 24 bit |
| OVER-THE-SIDE MOUNT ASSEMBLY (MODEL 132B) | |
| Physical Dimensions: 700 mm (L) x 520 mm (W) x 460 mm (H) | Weight 120 kg | |
| MOUNTING POLE | |
| One section: 1830 mm | |
| Two sections: 3600 mm | |
| Three sections: 5370 mm | |
| TRANSDUCER ARRAYS | |
| 2 x 2 (4) | 3 x 3 (9) | 4 x 4 (16) |