Site-to-site reproducibility in conducted immunity tests on PC-based data acquisition systems

This paper deals with electromagnetic susceptibility of PC-based data acquisition systems (DASs) when subjected to electromagnetic disturbances considered in the EMC applicable standards. A suitable measurement procedure that allows the DAS susceptibility to be highlighted is proposed. Furthermore, a preliminary analysis of the measurement reproducibility is carried out with the aim of investigating some aspects that could affect the result reliability: the environmental and instrumentation features, the configuration set-up. To these aims, a number of tests are carried out by considering many data acquisition systems, different test set-up, and performing the experiments in two different sites. The connected results are compared and commented.