A diagnosis method for the detection of detachments occurring in ceilings made with the system beam-and-clay is presented. This analysis is carried out by an innovative, portable instrument. The apparatus is capable of automatically tapping a small area of the ceiling by the shot of a controlled-energy pin, and of simultaneously detecting the out of plane vibration of this area by a low-cost digital accelerometer. Different âlevelsâ in vibration correspond to different movability for the ceiling. By comparing these movabilities, we are able to indicate detachment and its severity/extension. Results of a 1-year experimental campaign in schoolrooms encourage further development and widespread application of the instrument.
Design of an instrumentation for the automated damage detection in ceilings / Belletti, B.; Berardengo, M.; Collini, L.; Foresti, R.; Garziera, R.. - In: NDT & E INTERNATIONAL. - ISSN 0963-8695. - 94:(2018), pp. 31-37. [10.1016/j.ndteint.2017.11.004]
Design of an instrumentation for the automated damage detection in ceilings
Belletti, B.;Berardengo, M.;Collini, L.
;Foresti, R.;Garziera, R.
2018-01-01
Abstract
A diagnosis method for the detection of detachments occurring in ceilings made with the system beam-and-clay is presented. This analysis is carried out by an innovative, portable instrument. The apparatus is capable of automatically tapping a small area of the ceiling by the shot of a controlled-energy pin, and of simultaneously detecting the out of plane vibration of this area by a low-cost digital accelerometer. Different âlevelsâ in vibration correspond to different movability for the ceiling. By comparing these movabilities, we are able to indicate detachment and its severity/extension. Results of a 1-year experimental campaign in schoolrooms encourage further development and widespread application of the instrument.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
