New class of sensors for high-sensitivity-low frequency monitoring of historical monuments

摘要

An effective evaluation of the static and dynamic structural status of historical monuments for health evaluation and long term preservation requires the analysis of their low frequency dynamic behavior (< 1 Hz). The UNISA folded pendulum class [1], based on the Watt's linkage, developed at the University of Salerno and already successfully applied to low-frequency monitor of historical monuments, can provide this information with very high accuracy allowing effective tunings of numerical models describing their dynamical behavior. In this paper, after a description of the characteristics and performances of this class of sensors, the attention is focused on their possible application to the historical monuments monitoring for their preservation.