The lab exercitations are organized in shifts of two hours each
The reports are evaluated in hundreths: for access to the exam it is necessary that all the required reports obtain a minimum acceptable evaluation for each of the following five fundamental aspects.
1) Organization of the report and readability. Minimum acceptable level: Illustration of the purpose of the experience, report structured according to points 2,3,4,5 below and data represented in tabular or graphic form. Aspects involved in the evaluation: logical sequence of the elements presented, clarity of presentation of the concepts and methods involved in the experience.
2) Theoretical context and principle of measurement of the investigated phenomenon. Minimum acceptable level: theoretical framework of the phenomenon and illustration of the principles involved in the method of measurement used. Aspects involved in the evaluation: level of theoretical depth, completeness of the definition of the physical quantities involved, descriptions of the formal relationships between the latter, useful for understanding the measurement procedure and data analysis.
3) Instrumentation used and measurement procedure. Minimum acceptable level: description of the equipment and operations to be carried out to conduct the measurement. Aspects involved in the evaluation: characterization of the instrumentation (range, sensitivity, etc.), diagrams of the experimental setups used, clarity in the description of the operations to be carried out.
4) Data acquired. Minimum acceptable level: all acquired data necessary for the analysis activity represented in tabular or graphical form. Aspects involved in the evaluation: data presented with the relative units of measurement, care in indicating the measurement error to be associated (also in the form of a number of significant digits)
5) Data analysis and conclusions. Minimum acceptable level: analysis carried out with the mathematical tools illustrated in the slides of the description of the experience, numerical values of the results explicitly reported. Aspects involved in the evaluation: correctness of the calculations made, results reported with the necessary units of measurement, comparison of the results with any literature values.
A report that meets the minimum acceptable level in all aspects is sufficient, with a baseline rating of 60/100. Additional points are awarded for each of the aspects 1)-5) according to the scale
0-2 presence of errors 3-4 presentation can be improved 5-6 minor details to be specified 7-8 perfect
To calculate a proposed vote for the reports, an average of the evaluations of all reports is calculated, normalized into thirtieths with excess rounding.
The student can decide to accept the vote or access the oral exam to try to improve it or (in case of evaluation 29/30 or more) to reach the “lode”.
The oral exam consists of the presentation and discussion of one of the reports, chosen by the student. The evaluation of the oral exam follows the scale expressed in thirtieths
0-1 presence of errors 2 presentation can be improved 3 minor details to be specified 4 perfect
and is added to the proposed vote (for “lode” it is necessary to reach 33/30)
To know the entities and the parameters that characterize the devices in the laboratory experiences (the “devices” below).
To be able to use the correct terminology in order to describe the devices functionality.
To know the usage principles of the instruments used in laboratory experiences.
To have acquired to knowledge-organization skills needed to illustrate in a peer to peer interaction the devices properties and methods used to characterize them.
Trigonometric functions, exponential function, and complex numbers.
Energy. Electric charge. Electrical potential. Current.
Resistors and laws of Ohm.
Laws of Kirchhoff.
Parallel and serial circuits.
Simple examples of AC circuits.
The diode. Characteristics.
The photodiode. The thermistor.
The transistor. Some simple examples of circuits containing transistors.
– Characterization of a resistance
– Circuits in DC with resistances in series and in parallel
– Charge/discharge of a capacitor
– RC circuits in AC and filters
– Characteristic curve of a diode
– Photodiodes and LEDs
– Calibration of a sensor