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. The seismometers of the SISMA series are compact, reliable and easy to use. They have high sensitivity and can also be connected to third-party acquirers. Available versions: triaxial, biaxial and uniaxial. SISMA series sensors use the best high-gain electrodynamic transducers and components with high thermal stability. All in a milled, corrosion-treated aluminum housing. SISMA series noise curves are calculated using the method required by the USGS and are directly related to the Peterson noise model. Only instruments that calculate noise thresholds in this manner can compare their curves in a standardized and reportable manner. APPLICATIONS - Surface noise measurements (Nakamura) - seismic and microseismic monitoring - measurement of artificial vibrations (blast monitoring). Dimensions: 180x170x90mm Weight: 2100g, 2100g, 3200g 3200g