TYPE A EVALUATION OF UNCERTAINTY DUE TO SYSTEMATIC EFFECTS IN DIGITAL OSCILLOSCOPES

• Abstract:

  The paper presents a type A (experimental) evaluation of the uncertainty due to systematic effects. After a brief discussion about the general problem of choosing a proper mathematical representation for systematic effects in the context of uncertainty evaluation, a pragmatic approach, based on the familiar random variable theory and the ISO 5725 norm is proposed. The approach is called "inter-instrument experiment", on the analogy of the "inter-laboratory experiment" of the ISO 5725. Preliminary experimental results, relevant to commercial digital oscilloscopes, are presented and discussed.
• Keywords:

  uncertainty, systematic effects, digital instruments
• Download:

  IMEKO-WC-2009-TC8-343.pdf
• DOI:

  _unreg_wc-2009.343

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