Information Engineering

uncertainty and uncertainty Physical quantities and their measurement, measurement process, causes of uncertainty, random and systematic errors, maximum error module, metrological compatibility between measurements, law of propagation of errors, rules for writing the measurement. Random variables, expected value and variance, estimators of expected value and variance, variance of the mean, probability distribution laws. Standard uncertainty and its assessment of category A and category B, law of propagation of uncertainty, compound uncertainty, extended uncertainty. Fundamental and derived quantities, systems of measurement units, units of measurement and standards The International System, standards of measurement, traceability and traceability, metric standards. Digital multimeter The digital voltmeter, types of converters, the double ramp converter, principle of operation. Practical diagram of the double ramp converter, resolution, uncertainty, errors due to non-idealities, the multiple ramp converter. The voltmeter and the multi-range ammeter, load effects. The multi-range ohmmeter, 4-wire resistance measurements. Specifications of a digital multimeter, causes of error, error model, global specifications of uncertainty, differential mode disturbances. Digital oscilloscope General information on the oscilloscope, the digital oscilloscope (DSO), the analog-digital conversion, the sampling theorem. The cardinal breast reconstruction. Sample and hold circuit, tracking and successive approximation converters, flash converter, parallel converters. Structure of the digital oscilloscope, the input block, single-ended input configuration, bandwidth and rise time. The probe, compensated probes, rise time measurement, acquisition memory, LCD display, X-Y mode and Lissajous figures, phase shift measurement, acquisition memory, LCD display. Synchronization mode, the trigger circuit, horizontal channel settings, real-time and equivalent sampling mode, sequential and random equivalent-time sampling. Equivalent sampling time, aliasing, uncertainty on the vertical axis and on the horizontal axis, number of actual bits of a DSO. Counter frequency meter Direct frequency measurement, direct period measurement, measurement resolution, measurement uncertainty, optimal choice of the trigger level, reciprocal counters. Spectrum analyzer Frequency analysis of signals, real-time spectrum analyzer, principle diagram, general information on DFT and FFT, leakage and fenestration problems, specifications of a spectrum analyzer: frequency range, spectral resolution, harmonic distortion , dynamic range, uncertainty.

Basic concepts of circuit theory.

Prof. Emanuele Piuzzi, Dispense del corso di Misure Elettriche: Misura e incertezza, Misura delle grandezze in alternata, L'oscilloscopio digitale, Gruppo Misure Elettriche ed Elettroniche del Politecnico di Bari, "Lucidi", Unità di misura, campioni e riferibilità ing. Erika Pittella, "Lucidi sui multimetri"

Course info: https://classroom.google.com/u/0/c/Mzk3ODIzMjMyMzk5

Attendance is not mandatory but highly recommended.

The exam consists of a theoretical question and a practical test with one of the measuring instruments used during the course

Prof. Emanuele Piuzzi, Dispense del corso di Misure Elettriche: Misura e incertezza, Misura delle grandezze in alternata, L'oscilloscopio digitale, Gruppo Misure Elettriche ed Elettroniche del Politecnico di Bari, "Lucidi", Unità di misura, campioni e riferibilità ing. Erika Pittella,"Lucidi sui multimetri"

Course info: https://classroom.google.com/u/0/c/Mzk3ODIzMjMyMzk5