This seismic recorder is used for continuous recording of man-made or excavation activity generated seismic signals from the surface or underground. The instrument uses up-to-date design of distributed data acquisition, centralized data collection and cableless telemeasurement, providing continuous data acquisition, storage, and processing of seismic signals. It also provides a stable hardware platform by adopting a 32-bit embedded technology together with 24-bit A/D and massive FLASH storage technology. The technical specifications are guaranteed through advanced MEMS vibration sensing technology and weak signal recognition technology. It can be used for in-seam seismic exploration in the mining face, microseismic monitoring of mining areas and warning of mining activities off boundary.
Main application.
·Tunnel wave exploration of interior structures in the mining face
·Dynamic monitoring of "three zones" development during mining operation
·Real time monitoring of mine seismicity, gas gush, and impact ground pressure
·Real time monitoring and warning of illegal mining activities of small mines
·Monitoring of the off boundary mining activities of small mines
·Real time dynamic monitoring of coal mine mining activities
·Preservation of cultural relics and shooting range arrangement
Technical index.
Acquisition resolution | 24-bit A/D |
Dynamic range | ≥120dB |
GPS timing error | ±1μs |
Amplification factor | 0～64 adjustable |
Max channels | 3/recorder |
Sampling interval | 0.25ms,0.5ms,1ms,2ms |
Memory capacity | 8G (16G optional) |
Power supply | Battery or AC |
Operation time | ≥40h (battery) |
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