RECORDER OF INDICATION OF EARTHQUAKE Russian patent published in 2004 - IPC

FIELD: seismology, national systems monitoring and processing data of geophysical measurements in order to forecast earthquakes. SUBSTANCE: recorder of indications of earthquake has measurement channel incorporating functional converter and integrator and comprising two parallel measurement channels spaced apart on extended measurement base. Electrostatic pickups are connected to their inputs and outputs of channels are connected to differential bridge circuit which output is coupled to such elements connected in series as threshold circuit, analog-to-digital converter, buffer-storage circuit and personal computer. Registered signal is recorded and operation of above-mentioned elements is specified by means of programmable sampling measurement circuit into which measurement program is entered. EFFECT: enhanced authenticity of recorded indications of earthquake, widened functional potential of recorder. 3 dwg