Marine Exploration
OBX-110
Seabed OBX-110 Ocean Bottom Recorder
PRODUCT DETAILS
The OBX-110 is designed for extended-duration seabed ocean bottom seismic data acquisition. Nodes can be deployed in depths exceeding 3,400 meters with continuous recording for up to 110 days.
FEATURES
- Continuous, cable-free 4C autonomous recording
- Battery module: 110 days operation
- Built-in, full-resolution test generator
- Solid-state flash memory: 16 GB per channel
- CSAC clock
- Internal Heading Sensor 3 Component Magnetic Sensor
- +5º Accuracy
- Measurements written to header every 2,000 samples
MECHANICAL SPECIFICATIONS (Housing)
| Length | 500 mm | 19.7 in. |
| Width | 215 mm | 8.48 in. |
| Height | 111 mm | 4.38 in. |
| Weight in Air | 17.0 kg | 37.5 lbs. |
| Weight in Seawater | 9.9 kg | 21.8 lbs. |
| Maximum Operating Pressure | 34.5 MPa/345 Bar | 5,000 psi |
| Maximum Operating Depth | 3,450 M | 11,316 ft. |
| Operating Temperature Range | –5°C to +35°C | +23°F to +95°F |
| Storage Temperature Range | –10°C to +40°C | +14°F to +104°F |
ELECTRICAL SPECIFICATIONS
| Digitized 4C Recording Station |
4 Channel, 24 Bit A/D Digitizer 3C Orthogonal oriented GS-One OMNI 15 Hz Geophones 1 DEEPENDER Hydrophone |
| Digitization | 24-bit Delta-Sigma |
| Sample Interval | 0.25, 0.5, 1, 2, 4 ms |
| Pre-amplifier Gains | 0, 6, 12, 18, 24, 30, 36 dB |
| Maximum Input Signal | 1.8 Vrms |
| Equivalent Input noise (@2ms sample interval) | 0.17 μVrms |
| Gain Accuracy | Better than 1% |
| Anti-alias Filter | 83% Nyquist |
| Instantaneous Dynamic Range | 124dB @ 2 ms sample interval |
| THD | <0.2% |
| Distance Between Digitizer & Farthest Sensor | <18 cm |
| Distance Between All Sensors | <13 cm |
| Flash Memory | 32 GB per channel |
| Frequency Response | 1 Hz – 1650 Hz @ ¼ ms sample interval |
| Battery Module | 110 days operation |
CLOCK SPECIFICATIONS
| Days | 30 | 60 | 90 | 100 |
| Max Uncorrected Drift | 2ms | 8ms | 17ms | 21ms |
| Corrected Drift | <.25ms | <.5ms | 1ms | 1ms |
