Uncertainty of diagnostic features measured by laser vibrometry: The case of optically non-cooperative surfaces

► We studied drop-out noise affecting laser vibrometry measurements on optically non-cooperative surfaces. ► This is relevant for enameled surfaces, if they cannot be optically treated, as in case of on-line quality control. ► We studied the case of home appliances. ► The effect of optical signal quality on uncertainty of diagnostic features is shown by experiments. ► Statistical analysis of feature uncertainty propagation to the diagnosis is presented.