Seismograph BC 1313

parameter gauged — vibration acceleration; sensitivity 0.5 V/(m×s−2); frequency band 0.3…400 Hz; integrated system of electric calibration and power supply control. ВС 1313 piezoelectric seismographs are intended to convert vibration parameters to proportional electrical signal. Measurements are carried out for 3 mutually perpendicular axes X, Y and Z at a time. ВС 1313 seismographs are seismic accelerometers, parameter measured – vibration acceleration. For ВС 1313 seismic transducers, system is provided for sensing element electrical stimulation using actuator to determine conversion ratio true value during periodic recalibration without dismantling. Power check system is also allowed for in ВС 1313 seismographs.