Portable Seismograph
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- Traditional seismic prospecting and earthquake prediction systems in seismic stations;
- Quality inspection of civil engineering;
- Measurement of long-time ground micro-vibration;
- Monitoring explosion vibration.
Volume | φ140×170mm |
Weight | 3kg |
Color | Yellow, red etc. |
Waterproof depth | 1m |
Channel | 3 for velocity geophone |
Continuous operation duration | >20 days |
Geophone frequency bandwidth | 0.2 Hz ~ 200 Hz |
Dynamic range | > 120 dB |
Amplitude consistency between channels | <5% |
Phrase consistency between channels | <0.1ms |
Crosstalk suppression between channels | >100db |
Lateral vibration suppression | Better than 0.1% |
Self-noise | Below NHNM curve; below NLNM curve when 5s~1Hz |
Power consumption | 0.2w |
External powe supply | 5v~12v, chargeable |
Sampling rate | 1000, 500, 250, 100, 50 sps |
Internal high accuracy clock | OCXO, 0.5 PPM@4℃ |
Storage capacity | 32 GB (64GB extendable) |
Data format | Miniseed (SAC, SEGY etc. convertible) |
Setting | Bluetooth, USB and RS232 serial interface |
Data transmission | USB 2.0 |
- With a case made of high-quality alloy, the main unit is structurally firm, light weighted, waterproof and anti-interference.
- With a low-noise design, the system noise is less than 3μV.
- The data can be safely and reliably stored in a removable TF card.
- Remote control and real-time data transmission can be conducted via wired and wireless network.
- Besides internal electronic compass, the chargeable lithium battery allows continuous operation of over 20 days.
- The optional external single 5V power supply make the seismograph more suitable for long-time unmanned seismic observation in the wild.
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