Stefano De Falco

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In this paper the authors describe the implementation of a smart sensor based on microcontroller for the extraction of new conceived power quality indexes. The work is carried on starting from the improvement of three indexes presented in a previous work (De Capua et al., 2004) for exhaustively detecting voltage sags. After an examination of the loads which(More)
− The traditional control charts are based on the assumption that the measurement data relating to the average of each subgroup of the parameters under observation of a specific quality characteristic of product, process, system or service, are reported regardless of time stability of its own parameters. This condition is generally not verified in real(More)
This paper leads to provide a methodological procedure, in order to establish optimal calibration intervals according to the reference standards. At this aim a virtual instrument has been developed to perform the proposed procedure. Generally speaking, the goal of a calibration process is to reduce out-of-tolerance occurrences to an acceptable level with(More)
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