Surface surface velocimeter SISMA Series

compact

SISMA Velocimeters are compact and reliable with high sensitivity sensors designed for environmental noise measurement and seismic monitoring. The SISMA series of velocimeters consists of three electrodynamic sensors equipped with precision electronics that homogenize and linearize them to obtain a flat band from the nominal resonant frequency: 0.5, 0.2 or 0.1Hz. They are an excellent alternative to geophonic sensors of 1Hz or less for their lower cost, size and weight. Surface noise measurements (Nakamura) seismic and microseismic monitoring measurement of artificial vibrations (blast monitoring).