- Docente: Gaetano Pasini
- Credits: 6
- SSD: ING-INF/07
- Language: Italian
- Teaching Mode: Traditional lectures
- Campus: Bologna
- Corso: Second cycle degree programme (LS) in Electric Engineering (cod. 0232)
Learning outcomes
This course will provide students knowledge about:
- characterization of sensor performance
- metrological characterization of sensors
- principle of operation of different sensors
- correct use of sensors in measurement and process control applications
- implementation of simple data acquisition systems
Course contents
Sensors
The measurement process. Fundamental sensor applications: measurement and process control.
Metrological characterization of sensors
Model of a sensor. Characterization of a sensor. Parameters for static and dynamic behaviour characterization of a sensor. Operating conditions.
Passive sensors: principle of operation
Resistive sensors. Capacitive sensors. Inductive sensors. Magnetic sensors: the Hall effect. Magnetoresistors.
Active sensors: principle of operation
Peltier, Thomson, Seebeck effects. Piezoelectric sensors. Pyroelectric sensors.
Sensors and transducers for mechanical quantities
Encoder, resolver, synchro. Inductive proximity sensors. Strain gage. Linear voltage differential transformer. Ultrasound position transducers.
Flowmeters
Differential pressure, magnetic, ultrasound, vortex shedding and Coriolis effect volume or mass flowmeters.
Integration of sensors and electronic instrumentation
Equivalent circuit of a transducer. Noise and amplification of electrical signals. Signal conditioning. Smart sensors. Industrial data acquisition devices.
Optical fibre sensors.
Examples of sensor applications: mechanical, automotive, robotics, avionics.
Readings/Bibliography
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E. Arri, S. Sartori, Le misure di grandezze fisiche, Paravia, Torino, 1984.
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John G. Webster, The measurement, instrumentation and sensors handbook, IEEE Press, 1999
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Handbook of Modern Sensors, Jacob Fraden, AIP Press, 1996
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Sensor technology and devices, Ljubisa Ristic, Artech House, 1994
- Uni, Norma UNI 4546. Misure e misurazione.
- Lecture slides
Teaching methods
Lectures and laboratory exercitations
Assessment methods
Final exam (oral)
Teaching tools
Overhead projector, PC, laboratory
Office hours
See the website of Gaetano Pasini