RT journal article
T1 Influence of shearing amount and vibration amplitude on noise in shearography
A1 Lopes, H.
A1 Dos Santos, J.V.A.
A1 Moreno García, Pablo
A1 Monteiro, J.
A2 Ingeniería Mecánica y Diseño Industrial
K1 Shearography
K1 Noise
K1 Shearing amoun
K1 Vibration amplitude
K1 Signal-to-noise ratio (SNR)
K1 Root mean square (RMS)
AB A method for the evaluation of noise in measurements with shearography is reported in this paper. This method is able to quantify the influence of several parameters, namely the shearing amount and the vibration amplitude of rotations, on the measurements accuracy. The method was applied to the first four modal rotation fields of an aluminum beam in free-free conditions, experimentally obtained with an in-house digital shearography system. The root mean squares of noise and the signal-to-noise ratios of these measurements were computed in order to gain insight into the absolute and relative accuracies, respectively. It was found out that the best measurements are obtained with the largest values of the shearing amount and vibration amplitude.
PB Elsevier
SN 2452-3216
YR 2017
FD 2017
LK http://hdl.handle.net/10498/35474
UL http://hdl.handle.net/10498/35474
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 11-nov-2026