Portable digital seismometer |
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| Authors: | I P Bashilov S G Volosov Yu N Zubko S A Korolyov |
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| Institution: | 1.Schmidt Institute of Physics of the Earth,Russian Academy of Sciences,Moscow,Russia;2.Experimental Design Bureau of Oceanological Engineering,Russian Academy of Sciences,Moscow,Russia;3.Institute of Geosphere Dynamics,Russian Academy of Sciences,Moscow,Russia |
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| Abstract: | We have developed an autonomous portable digital seismometer for measurements in the field, in engineering constructions,
and in hard-to-reach places. The seismometer is a monoblock including an SM-6 seismic receiver and digital seismic recorder.
The SM-6 seismic receiver is a highly effective device for field work on investigating a microseismic wave field and for use
in systems of seismological monitoring. Field tests of these seismic receivers in comparison with well-known SM-3 devices
were carried out. The basic part of the seismic recorder is an MSC1213Y5 system-on-chip representing a precision 24-bit ADC
coupled with an 8051 compatible microcontroller. Autonomy of the seismometer up to 30 days is provided with data recording
into a flash memory chip of 1 Gbyte capacity. Time synchronization of seismic data is provided with the PPS second mark received
from a GPS receiver. A preproduction model of the portable digital seismometer was manufactured and tested. As a result of
tests, the working capacity of this preproduction model has been confirmed and its basic technical characteristics have been
determined. |
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