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Instruments for Geophysics and Seismology
Ant-1CE-10Hz - Single-channel nodal seismometer with external interface
Ultra-portable single-component nodal seismometer with 10 Hz geophone, multi-constellation GNSS, and IP68 zero-contact design for seismic field acquisition.
Built for efficient deployment with long endurance, wide dynamic range, and support for geophone strings, hydrophones, and UAV-assisted surveys.
Single-component seismometer with external interface.
The GEOANT Ant-1CE-10Hz is an advanced nodal seismometer designed to reduce operational complexity, improve survey efficiency, and lower total project cost. It combines GPS/Beidou synchronization algorithms, ultra-low-power circuitry, and wireless data and charging technology in a highly integrated field unit.
Its sealed zero-contact design and long operating endurance support intelligent or automated deployment in complex terrain and harsh environments. The state-of-the-art ADC architecture delivers exceptional dynamic range for accurate micro-vibration detection.
The Ant-1CE platform supports external connectivity with land geophone strings, marsh phones, and hydrophones. It also supports UAV-assisted surveys at altitudes above 300 meters AGL.
Applications:
- Seismic zonation and safety assessment
- Shallow geological surveys
- Urban subsurface exploration
- Geothermal exploration
- Coal mine goaf detection
- Exploration of petroleum, natural gas, coal, and nonferrous minerals
Technical specifications
Physical
| Weight | 650 g (excluding spike) |
| Operating temperature | -40 C to +70 C |
| Ingress protection | IP68 |
| Operating life at 25 C | 25 days at 2 ms, 24 hrs/day; 50 days at 2 ms, 12 hrs/day |
| Charging time | 3.5 hours |
Performance
| Channels | 1-channel Delta-Sigma ADC |
| A/D converter | 32-bit |
| Sampling rate | 0.25 ms, 0.5 ms, 1 ms, 2 ms, 4 ms, 8 ms, 10 ms, 20 ms |
| Preamplifier gain | 0-24 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 |
| 0 dB max input | 2.5 V peak |
| Equivalent input noise at 12 dB | 0.5 uV at 0.25 ms / 0.2 uV at 2 ms / 0.14 uV 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 standard | <1 ppm |
| Timing accuracy | +-10 us, GPS disciplined |
| Storage | Expandable from 8 GB to 32 GB |
| Built-in GNSS | Simultaneous GPS/Beidou/GLONASS/GNSS positioning and timing, single or dual mode |
| Gain accuracy | <1% |
Geophone
| Selectable geophone | 5 Hz / 10 Hz |
| Natural frequency | 5 +-7.5% / 10 +-3.5% |
| DC resistance | 1850 +-5% / 1800 +-3.5% |
| Sensitivity (open circuit) | 80 +-5% / 87 +-5% |
| Damping | 0.7 +-7.5% / 0.7 +-5% |
| Distortion | <=0.1% / <=0.1% |
| Spurious frequency | >=170 / >=240 |
| Effective frequency range | 0.2-1000 / 0.5-1000 |
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