Linear networks. Electric current. Ohm and Kirchhoff laws. Thevenin theorem. Alternate current: complex impedence. Digital multimeters and oscilloscopes. Principles of interference diffraction and polarization of light. Volt amperometric measurements on linear e non linear circuit components. Measurements on low and high pass circuits. Optical measurements with a grating spectrometer. Measurements of the characteristics of a polarizer.
Giacomo Poggi: Esperimenti di Elettricità e Magnetismo
Eugene Hecht, Optics, Addison-Wesley
Didactic material given during the course
Learning Objectives
Knowledge acquired: Current. Ohm and Kirchhoff laws. Thevenin theorem. Alternate current: complex impedence. Digital multimeters and scopes. Principles of Interference diffraction and polarization of light. Volt amperometric measurements on linear e non linear components. Measurement of band pass. Optical measurement with a grating spectrometer. Measurement of characteristics of a polarizer.
Competence acquired: Use of the acquired knowledge to perform and analyze laboratory measurements. Performing electrical measurements with digital multimeters, scopes and function generators. Performing optical measurements by using spectrometers, polarizers, and photodiodes. Critical analysis of the results and estimation of the errors of the measurement
Skills acquired (at the end of the course): Use of the acquired competence to face optical and electronic instrumentation. Use of the experimental methodology for measurements in optical and optometric fields with critical handling of obtained results.
Prerequisites
Courses to be used as requirements (required and/or recommended)
Courses required: Laboratorio per l' Ottica I
Courses recommended: Fisica I e II, Matematica I
Teaching Methods
Total hours of the course: 150(= 6 x 25)
Hours reserved to private study and other individual formative activities: 90
Lectures (hours): 24
Laboratory (hours):36
Type of Assessment
Presentation and discussion of written reports on the four experiences and oral exam.
Course program
Lectures:
Electrology:
Linear networks: potential, charge and electric current. Ohm and Kirchhoff laws. Thevenin theorem. Voltage generators. Electrical power. Alternating current in complex formalism, capacity and impedence of the capacitor. Extension of Ohm and Kirchhoff laws. Electrical Power with complex impedence.
RC circuit: response to a step voltage. Frequency response (amplitude and phase) of high and low pass circuits. Bode plot. Digital multimeter: functioning and characteristics. Use and functioning of the digital oscilloscope
Optics
Fundamentals of interference and diffraction. Functioning of diffraction grating and of grating spectrometer. Light polarization. Functioning of polarizers: Malus law.
Introduction and explanation of laboratory experiences (reported below).
Laboratory:
Experience 1: Volt Amperometric characteristic of 3 circuit elements.
Experience 2: Phase and Amplitude Diagrams for low and high pass circuits.
Experience 3: Malus law and measurement of the extinction ratio of a polarizer.
Experience 4: Measurement of wavelengths of a spectral lamp by using a grating spectrometer.