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MEASUREMENT AND INSTRUMENTATION

CODE 66229
ACADEMIC YEAR 2021/2022
CREDITS
  • 6 cfu during the 3nd year of 8720 INGEGNERIA MECCANICA (L-9) - GENOVA
  • SCIENTIFIC DISCIPLINARY SECTOR ING-IND/12
    LANGUAGE Italian
    TEACHING LOCATION
  • GENOVA
  • SEMESTER 1° Semester
    TEACHING MATERIALS AULAWEB

    OVERVIEW

    Measurement are an essential part in decision making. Decisions taken by humans, such as in a testing procedure, or automatically by the system, such as in an ABS or ESP onboard a vehicle, are strongly influenced by the quality of measurement. Therefore, measurement design includes both the selection of proper sensors and devices and the evaluation of  measurement uncertainty.

    The course will introduce the functioning and operation principles, as well as the application, of key instruments for industrial engineering applications, the measurement principles, and basics of statistical analysis. The course will provide general criteria to select simple measurement systems for a given application, based on different physical measurement principles, on the uncertainty analysis, the signal conditioning, and the data recording.

    AIMS AND CONTENT

    LEARNING OUTCOMES

    Operative comprehension of the foundations of measurement, including elements of probability and statistics, static and dynamic analysis of measuring systems, evaluation of uncertainty, calibration, components selection, signal conditioning, measurement of mechanical and thermal quantities.

     

    AIMS AND LEARNING OUTCOMES

    The students will learn the general measurement principles and the physical working principles of the main measurement instruments. The students will be able to analyse a measurement chain discussing static and dynamic functionalities, using methods and technical approaches typical of measurement expertise. Furthermore, the students will be able to evaluate the reliability of a measurement result and analyse the uncertainty associated to a given measurement chain.

     Finally, the students will be able to deepen their knowledge about measurement systems and instrumentation by autonomous bibliography research on books, papers or specific periodicals.

    TEACHING METHODS

    Lectures, numerical case-studies and laboratory practice.

    SYLLABUS/CONTENT

     

    Elements of probability and statistics: probability, random variables, variance and covariance, linear regression.

    Evaluation of measurement uncertainty, calibration, dynamic measurement.

    Sensors: seismic, elastic, strain gages, thermo-resistances, thermocouples, capacitive, inductive.

    Signal conditioning: potentiometer and bridge circuits, demodulators, amplifiers, filters, interference reduction and grounding.

    Voltmeters, A/D converters, current-to-voltage converters.

    Metrological infrastructures. Length, temperature, force and vibration measurement.

    Laboratory practice in strain force and vibration measurement.

    RECOMMENDED READING/BIBLIOGRAPHY

    Recent reference textbooks include

    • Morris, Langari, Measurement and Instrumentation, Elsevier, 2011
    • Dekking et alii, A modern introduction to probability and statistics, Springer, 2005

    Futher indications will be provided during the course.

    TEACHERS AND EXAM BOARD

    Exam Board

    GIOVANNI BATTISTA ROSSI (President)

    VITTORIO BELOTTI

    GIANCARLO CASSINI

    MARTA BERARDENGO (President Substitute)

    FRANCESCO CRENNA (President Substitute)

    LESSONS

    EXAMS

    EXAM DESCRIPTION

    • Written test,
    • Presentation and discussion of a report, based on lab activity,
    • Generic exam interview.

    ASSESSMENT METHODS

    The written test aims to ascertain acquisition of generic measurement methods, such as uncertainty evaluation and/or processing of calibration data.

    The report is based on a laboratory experiment and written according to recommended practice for testing reports. It should give evidence that the student is able to apply generic measurement methods to actual data and to report according to recommended practice standards.

    The interview concerns measurement components, their functioning principles and their proper selection and application.

    Exam schedule

    Date Time Location Type Notes
    12/01/2022 09:00 GENOVA Orale
    25/01/2022 09:00 GENOVA Orale
    07/02/2022 09:00 GENOVA Orale
    20/06/2022 09:00 GENOVA Orale
    05/07/2022 09:00 GENOVA Orale
    21/07/2022 09:00 GENOVA Orale
    07/09/2022 09:00 GENOVA Orale

    FURTHER INFORMATION