Digital Broadband 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.
Waterproof and anti-interference, digital broadband seismographs are suitable for geological fixed or mobile seismic stations.
Frequency bandwidth | CZS-Ⅰ-2 (0.1Hz~150Hz), CZS-Ⅰ(0.05Hz~100Hz), CZS-Ⅱ(0.03Hz~100Hz) , CZS-Ⅲ (0.0167Hz~80Hz) |
Self-noise | Below NHNM curve; below NLNM curve when 10s~10Hz |
Sensitivity | 1.1e+9 Cnt/m/s |
Time stability | 5×10-8s |
Amplitude consistency between channels | <5% |
Phrase consistency between channels | <0.1ms |
Crosstalk suppression between channels | >100db |
Lateral vibration suppression | Better than 0.1% |
Power consumption | Automatic mode: <400mW@100sps; Wifi mode: <600mW@100sps; Zibgee mode: <700mW@100sps; Ethernet mode: <800mW@100sps |
Sampling rate | 5~500 optional |
External power supply | 9V~15V, single power supply |
Screen | LCD & LED |
Operating temperature | -25℃~+55℃ |
Automatic mode duration | >30 days |
Dynamic range | >120dB |
Storage capacity | 32GB (removable SD card) |
Data format | MSD (SAC etc. convertible) |
Interface | Ethernet interface, Zibgee, Wifi, USB interface and RS232 serial interface; remote control and data tranmission via wired and wireless network |
Waterproof depth | ≥1m |
Volume | φ188×246 mm |
Weight | Approximately 9Kg |
- With a case made of high-quality alloy, the main unit is structurally firm, light weighted, waterproof and anti-interference.
- With internal BDS and GPS for locating and timing, the seismograph can be buried 0.2m~0.4m underground. External GPS with lightning arrester is optional.
- The internal Zigbee unit allows convenient wireless ad hoc network mode.
- Besides internal electronic compass and attitude sensor, the chargeable lithium battery allows continuous operation of over 30 days.
- The optional external 9~15V (0.5A~2A) DC power supply make the seismograph more suitable for long-time unmanned seismic observation in the wild.
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