The evaluation of the health state of historical and archeological infrastructures requires an analysis of their dynamical behavior in connection with natural and anthropic actions, whose accuracy is mainly determined by the band and sensitivity of the sensors. The latter are generally accelerometers, consisting of classical mechanical oscillators with a force feedback control, whose improvement has been directed and determined by the progress of the control electronics in the last decades. The mechanics, instead, has experienced only a limited evolution, mainly due to the introduction of new materials and modern machining techniques. But recently the introduction of the UNISA folded pendulum technological platform, a synthesis of more than 10 years of research and development, is allowing the implementation of very low-frequency compact monolithic oscillators (<100 mHz), limited in sensitivity only by their mechanical thermal noise (<10−14m/sqrt(Hz),making it possible the implementation of state-of-the-art inertial seismometers, accelerometers, and tiltmeters. Many different mechanical sensors based on this platform have been tested along the years, with relevant scientific results and applications also in the field of historical and archeological heritage, like the Trajan Arch in Benevento (Italy). In the following, models, implementations, and selected scientific results are presented and discussed.
Mechanical Monolithic Inertial Sensors for Historical and Archeological Heritage Real-Time Broadband Monitoring
Barone F.
Methodology
;Giordano G.Methodology
2022-01-01
Abstract
The evaluation of the health state of historical and archeological infrastructures requires an analysis of their dynamical behavior in connection with natural and anthropic actions, whose accuracy is mainly determined by the band and sensitivity of the sensors. The latter are generally accelerometers, consisting of classical mechanical oscillators with a force feedback control, whose improvement has been directed and determined by the progress of the control electronics in the last decades. The mechanics, instead, has experienced only a limited evolution, mainly due to the introduction of new materials and modern machining techniques. But recently the introduction of the UNISA folded pendulum technological platform, a synthesis of more than 10 years of research and development, is allowing the implementation of very low-frequency compact monolithic oscillators (<100 mHz), limited in sensitivity only by their mechanical thermal noise (<10−14m/sqrt(Hz),making it possible the implementation of state-of-the-art inertial seismometers, accelerometers, and tiltmeters. Many different mechanical sensors based on this platform have been tested along the years, with relevant scientific results and applications also in the field of historical and archeological heritage, like the Trajan Arch in Benevento (Italy). In the following, models, implementations, and selected scientific results are presented and discussed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
