Model DSL-1 Portable Seismograph is a system of microseismic detection designed for various purposes by which the natural earthquakes, man-made explosions, ground-micro-tremors and other engineering vibrations here been recorded in the recent years.
In order to interpret quantitatively seismograms, We have deduced the analytic expressions of dynamic response of the system, and calibrated its frequency-response characteristics as well. It is shown from the given expressions that the computed curves of dynamic characteristics are consistent with the results of calibration.