- Docente: Gaetano Pasini
- Credits: 9
- SSD: ING-INF/07
- Language: Italian
- Teaching Mode: Traditional lectures
- Campus: Bologna
- Corso: First cycle degree programme (L) in Electrical Energy Engineering (cod. 5822)
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from Feb 19, 2024 to Jun 06, 2024
Learning outcomes
The course provides students with main concepts related to: - Metrology and measurement theory - Signal conditioning and acquisition - Operation of the main digital measuring instruments - Measurement methods for signals and electrical quantities - Main measurements and tests on electrical machines and systems Students will be able to apply the knowledge acquired to measurement systems in order to understand their operation (if necessary by consulting the technical manuals of the measurement equipment used), use them correctly, determine the uncertainty to be associated to the obtained measurement results (both directly or indirectly) and, if necessary, appropriately describe its purpose, use and operating limits.
Course contents
Measurement uncertainty.
The new International System of Units.
The watt balance for the definition of the mass.
Resistor characterization in DC.
Signal conditioning: the operational amplifier.
Time and frequency measurements.
Discussion of the A/D conversion process. The Sample and Hold device.
D/A converter.
A/D converter:
- instantaneous value conversion (flash converter, SAR converter)
- medium value converter (double slope, multiple slope and voltage to frequency converter).
Measurement on periodic signals.
The electronic multimeter.
Data acquisition boards.
Active and reactive power definition and measurements.
Digital oscilloscope.
The IEEE488 bus.
Characterization of resistors, inductors and capacitors.
The voltampermetric method for impedance measurements
Impedance measurement: Wien, Schering and Maxwell bridges
Current and voltage transformers. Hall current sensor and Rogowsky coil.
Measurements on three phase circuits.
Measurement on nonsinusoidal conditions.
Analog and digital spectrum analyzers.
Real-time spectrum analyzers.
Power quality measurement instruments.
Partial discharges measurement and localization (including GPS for accurate time reference).
Hint on measurements for electromagnetic compatibility and for electromagnetic pollution.
Measurements on electrical machines.
Measurements on transformers.
Measurements on asynchronous machines.
Measurements on electrical plants.
Readings/Bibliography
Domenico Mirri, Gaetano Iuculano, Misure Elettroniche - CEDAM
Teaching methods
Classroom lectures
Assessment methods
Written + oral exam
Office hours
See the website of Gaetano Pasini