Ultra-compact single-channel nodal seismometer for seismic exploration, geotechnical surveys and automated deployments. It combines a 32-bit ADC, GPS/Beidou timing, wireless charging/data transfer and IP68 protection.
The Ant-1C-10Hz is a single-channel nodal seismometer engineered to reduce operational complexity in seismic campaigns while improving survey efficiency in the field. It integrates GPS/Beidou synchronization algorithms, ultra-low-power electronics and wireless charging/data transfer technology for fast, repeatable deployment.
Its highly integrated housing, zero external contacts and long operating life make it suitable for complex terrain and harsh environments. The state-of-the-art ADC architecture provides very high dynamic range for micro-vibration detection, and the system supports UAV-assisted surveys above 300 m AGL.
| Weight | 560 g (excluding spike) |
| Dimensions | 55 x 55 x 148 mm |
| Operating temperature | -40 °C to +70 °C |
| Protection rating | IP68 |
| Charging time | 3.5 hours |
| Operating life | 25 days at 2 ms, 24 h/day; 50 days at 2 ms, 12 h/day |
| Channels | 1 channel Delta-Sigma ADC |
| A/D converter | 32-bit |
| Sampling rates | 0.25 ms, 0.5 ms, 1 ms, 2 ms, 4 ms, 8 ms, 10 ms, 20 ms |
| Preamplifier gain | 0 to 24 dB in 6 dB steps |
| Low cut filter | 1 Hz, DC removed or disabled |
| Anti-alias filter | 206.5 Hz at 2 ms (82.6% of Nyquist), selectable linear or minimum phase |
| Maximum input | 2.5 V peak |
| Equivalent input noise at 12 dB | 0.5 µV at 0.25 ms; 0.2 µV at 2 ms; 0.14 µV at 4 ms |
| Instantaneous dynamic range at 12 dB | 118.9 dB at 0.25 ms; 126.8 dB at 2 ms; 130 dB at 4 ms |
| Total dynamic range | 145 dB |
| Timing accuracy | ±10 µs GPS disciplined |
| Storage | Expandable from 8 GB to 32 GB |
| Built-in GNSS | Simultaneous GPS/Beidou/GLONASS positioning and timing |
| Natural frequency | 10 Hz ±3.5% |
| DC resistance | 1800 Ω ±3.5% |
| Open-circuit sensitivity | 78.7 V/m/s ±3.5% |
| Damping | 0.7 ±5% |
| Distortion | ≤0.1% |
| Spurious frequency | ≥240 Hz |
| Effective range | 0.5 to 1000 Hz |
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