PHYSICAL INSTRUMENTS
cod. 1005272

Academic year 2012/13
3° year of course - Second semester
Professor
Academic discipline
Elettronica (ING-INF/01)
Field
Attività formative affini o integrative
Type of training activity
Related/supplementary
42 hours
of face-to-face activities
6 credits
hub: PARMA
course unit
in - - -

Learning objectives

The aim of the course is to acquire the fundamentals of electronics applied to the measurement instrumentations typically used in a physics' research laboratory.

At the end of the course it will be acquired:

basic knowledge about the physical operating principle of some of the major semiconductor electronic devices and their applications in the realization of circuits with discrete and integrated elements into the digital and analog electronics.

basic knowledge on the operation of sensors and transducers and related methods of signal conditioning.

basic knowledge on the control, acquisition and signal processing electronics.

Prerequisites

Fundamentals of physics (mechanics, thermodynamics, electromagnetism and optics).

Course unit content

At the end of the course, the student will be able to understand the physical operation of the main instruments commonly used in a research laboratory. He will be able to understand the measurements of physical quantities from the point of view of the acquisition of the experimental data elaborating a critical vision in function of the electronics used.

Full programme

Basic of electronics

The p-n junction, the diode and the transistor

The diode as a circuit element, pnp and npn transistor, operation modes of the transistor, use of the transistor, common-emitter, common-collector and common-base configurations, MOSFET transistors, small signal model, common-source amplifier, Common-Drain amplifier (Source Follower), notes on the JFET transistor.

Operational Amplifiers

General characteristics, operational amplifiers, applications, active filters, low pass and high-pass filter, band-pass filter.

Measurements in complex systems

General concepts, measurements of physical quantities:

Measurements of voltage, current, resistance, (analog and digital multimeters), analysis in the time domain, frequency domain analysis, signal-to-noise ratio, Lock-in amplifier.

Active sensors

Thermocouples, sensors, photoelectric and photovoltaic, piezoelectric sensors, Hall effect sensors.

Passive sensors

Thermometers, strain and pressure gauges, capacitive and inductive sensors.

Structure of a measuring system: transducers and signal conditioning

Amplification and attenuation, filtering, sum and difference with the reference signal, integration and linearization, conversion of a voltage / current signal into a voltage / current signal, converting a frequency into a voltage signal.

Acquisition and control:

analog control system: the PID controller: proportional, integrative and derivative action

A/D converters: sampling, digitization, data acquisition and signal processing.

D/A Converters: alteration of analog signals, control of the measuring system.

Bibliography

Lecture notes

For depth study:

MICROELECTRONICS - Jacob Millman and Christos C. Halkias, Ed BOLLATI BORINGHIERI.

MICROELECTRONICS - Milmann-Grabel, Ed MC GRAW-HILL.

APPUNTI DI ELETTRONICA. DISPOSITIVI ED ELETTRONICA ANALOGICA LINEARE - Roberto Menozzi, Ed PITAGORA.

FONDAMENTI DI PROGETTAZIONE ELETTRONICA ANALOGICA E DIGITALE - A. De Gloria, Ed Franco Angeli.

THE ART OF ELECTRONICS - P. Horowitz, W. Hill, Ed Cambridge University Press (Book encyclopedia, very clear, well made and fairly up to date).

Teaching methods

Lectures enriched with applications and exercises.

Assessment methods and criteria

Oral examination

Other information

Possible program expansion according to the specific students's needs.