Digital autonomous seismic station NDAS-8224SBS
NDAS-8224SBS is a 24-bit subsea autonomous wireless seismic station. It contains a hydrophone, a 3-component seismic sensor MTSS-2003 and a digital system NDAS. The station's battery life is up to 30 days.
The station has a high dynamic range, low self-noise and low power consumption.
The system is designed for seismic exploration and research in transition zones and shallow waters at depths of up to 100 meters.
The housing-free version – ADC module NDAS – is designed for integration into another system for underwater applications.
The main advantage of this seismic station is its ability to operate in any orientation.
Wi-Fi connection allows controlling the station's operations before installing on the seabed or ocean bottom.
Characteristics Delivery and warranty
| Frequency range | 1 Hz - 300 Hz |
| Sensitivity | 250 V / (m/sec) |
| Clip level | 30 mm/sec |
| Dynamic range | 134.2 dB |
| Sensitivity axes | Vertical, North, East |
| Supply voltage | 12 V Nominal (10.5-16 V permissible) |
| Power consumption | <1200 mW |
| Maximum installation tilt | Any |
| ADC sampling rate | 1, 10, 50, 100, 125, 250, 500, 1000 Hz |
| Dimensions | Dual housing: diameter 108 mm, height 380 mm each |
| ADC resolution | 24 bit |
| Weight | 11.8 kg |
| Reference generator stability | 5 ppb - OCXO underwater version |
| ADC noise performance | 20.4 ENOB at gain = 1 |
| Number of channels | 4 |
| Data recording mode | continuous, schedule |
| Data recording format | Internal binary, miniSeed, SEG converters provided |
| Data storage | microSD 32 GB |
| Data transfer | USB 2.0, Wi-Fi |
| Inbuilt sensors for orientation determination | 3-axis MEMS accelerometer, 3-axis magnetic sensor |