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Geobit - Model GEO-A200 -Compact Digital Accelograph
GEObit introduces GEO-A200 high resolution and high dynamic range compact digital accelerograph. The size of the instrument is only 139mm heigh and 138mm diameter. The power consumption is less than 2W. Available sampling rate is 1 to 1000sps and optional lower sampling rates are supported. Built-in GNSS receiver combined with ultra accurate DPLL unit providing time drift 10e-9sec ensures timing stability even in the absence of GPS signal. NTP timing is also available. The instrument provides self calibration functionality. DC offset removal is also perfomed automatically or on demand. Acquisition parameters and operation modes can be set from the user-friendly web interface, which can be protected with up to up to 64 characters passwords.
- FBA based compact digital accelerograph
- Cost effective and high performance
- Bandwidth DC-200Hz
- Dynamic range >155dB
- Ethernet - WiFi - Serial port
- 32bit ADC digitizer
- GNSS time/Precision DPLL
- 0.1-1000 samples per second
- LCD and six status LEDs
- Integrated Seismic Switch
- Embedded open-source OS
- Embedded seedLink server
- Embedded earthworm server
- Continuous and trigger recording
- Advanced networking functionality
- Smart seismic network operation
The unit operates in continuous mode, triggered mode or both and data are streamed through different data ports. Local data storage is selectable as well as logfile information. The unit supports advanced functionality, implemented from the combination of trusted open source software components. Because of open source architecture it is able to run any custom application, thus providing the next day solution to the user. The hardware is based on an embedded ARM9 400MHz ARM linux board running 14.6 linux kernel. The data are stored in mini-SEED format into the microSD card or to a removable USB stick. The instrument supports 10/100 ethernet port and debug port. FTP, SFTP, SSH are also available. The state of health is transmitted over UDP packets upon request.
The instrument supports embeded earthworm and seedlink server with configurable data packet size that allows data transmission with low latency. The instrument is ideal for earthquake monitoring, early warning applications and structural monitoring applications. Single bolt mounting and flexibility of connectivity allows easy and quick installation.