20 April 2016 Triaxial tunable mechanical monolithic sensors for large band low frequency monitoring and characterization of sites and structures
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Abstract
This paper describes the application of the monolithic UNISA Folded Pendulum, optimized as inertial sensor (seismometer) for low frequency applications for characterization of sites (including underground sites) and structures (e.g. buildings, bridges, historical monuments), but, in general, for applications requiring large band low-frequency performances coupled with high sensitivities. The main characteristics of this class of sensors are high sensitivity, large measurement band, compactness, lightness, scalability, tunability of the resonance frequency, low thermal noise and very good immunity to environmental noises. The horizontal and vertical versions of folded pendulum allow an effective state-of-the-art mechanical implementation of triaxial sensors, configurable both as seismometer and/or as accelerometer.
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F. Barone, F. Barone, G. Giordano, G. Giordano, F. Acernese, F. Acernese, R. Romano, R. Romano, "Triaxial tunable mechanical monolithic sensors for large band low frequency monitoring and characterization of sites and structures", Proc. SPIE 9803, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2016, 98032R (20 April 2016); doi: 10.1117/12.2218909; https://doi.org/10.1117/12.2218909
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