Teacher
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ALIMENTI ANDREA
(syllabus)
• Introduction to metrology: basic definitions; • Systems of measurement units (international system of measurement units, CGS systems, Gaussian system): definitions, writing rules and conversion methods; • Elements of inferential statistics: histograms, position parameters, dispersion parameters, shape parameters, empirical law of frequency, law of large numbers, central limit theorem; • Evaluation of uncertainty in direct measurements: basic definitions, type A and type B uncertainty, sample mean and variance and their distributions, notable distributions (Gaussian, uniform, t-student), expanded uncertainty; • Statistical tests: chi-square test, mean test; • Evaluation of uncertainty in indirect measurements: uncertainty propagation rule in indirect measurements (JCM 100:2008), deterministic model of uncertainty and propagation rule in indirect measurements (maximum error). • Graphing and mathematical methods: graphing, bi/semi-logarithmic graphs, fit procedures, least squares method. • Real passive components: resistors, capacitors, inductors; • Analog measuring instruments: static/dynamic metrological characteristics, D'Arsonval ammeter, electrostatic voltmeter, electrodynamic instrument, analog wattmeter, dc insertion errors of voltmeters and ammeters. • Electrical resistance measurement methods: voltamperometric method, 2/4-point measurements, DC measurement bridges – Wheatstone bridge, van der Pauw method for resistivity measurement. • Digital measuring instruments: AD converters, digital voltmeters; • The oscilloscope: analog oscilloscope, digital oscilloscope, sampling methods, aliasing; • Electrical noise (outline): sources and types of noise, noise reduction techniques.
(reference books)
International vocabulary of metrology – Basic and general concepts and associated terms (VIM – 3rd ed.) Evaluation of measurement data — Guide to the expression of uncertainty in measurement The International System of Units – 9th edition – brochure
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