


| Item | Two-Component OBN System 2018 |
Four-Component OBN System 2021 |
Four-Component OBN System 2024 |
|---|---|---|---|
| Geophone | Vertical 10 ~ 200Hz |
3C Orthogonal 10 ~ 200Hz |
3C Orthogonal, Omni-Directional 15 ~ 190Hz |
| Hydrophone | Circular Plate Type Piezoelectric Ceramic 1 ~ 10,000Hz |
Circular Plate Type Piezoelectric Ceramic 1 ~ 10,000Hz |
Sphere Type Piezoelectric Ceramic 1 ~ 60,000Hz |
| ADC Resolution | 24bits | 24bits | 24bits |
| Sample Interval | 1ms | 1ms | 1, 2, 4ms |
| Memory | SD Card 2GB | SD Card 32GB | SD Card 128GB / SSD |
| Clock | OCXO | OCXO | CSAC / OCXO |
| Operation Time | 10days | 12days | 30 ~ 60days |
| Maximum Operation Depth |
1,000m | 1,000m | 1,000m (Can be deeper if required) |
| Housing Shape | Flat Cylindrical Shape | Flat Cylindrical Shape | Flat Cube Shape |
| Dimension | 13.8cm(Ф) x 7.0cm(H) | 18.0cm(Ф) x 7.2cm(H) | 40cm(L) x 40cm(W) x 15cm(H) |
| Weight | 1.6kg in Air (Excluding Frame) |
2.1kg in Air (Excluding Frame) |
15kg in Air (Frame-Integrated) |
| Additional Sensor | n/a | n/a | MEMS Accelerometer, Magnetometer, Thermometer |