Digital Broadband Seismograph

Digital Broadband Seismograph
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Application
  • 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.
Specification

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
Feature
  • 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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