Measurement and Experiment (FSI-ZEM)

Academic year 2024/2025
Supervisor: doc. Ing. Ivan Mazůrek, CSc.  
Supervising institute: ÚK all courses guaranted by this institute
Teaching language: Czech
Course type: departmental course
Aims of the course unit:

The aim of the course is to introduce to the students the contemporary methods, instrumentation and computer technology for measuring basic physical quantities. These quantities serve as inputs for mathematical analysis used both for technical diagnostics of machines and for identification of virtual models.
An overview of the current possibilities of experimental investigation of selected physical quantities needed for assessment of the operating conditions of machines and their components.
Basic practical experience in the field of measurement of the non-electrical physical quantities.
Getting in touch with the modern measuring equipment and analysis methods of experimentally obtained data processing.

Learning outcomes and competences:
 
Prerequisites:

Knowledge gained during the studies in the fields of numeric mathematics, statistics and probability, physics, dynamics and basics of electrotechnics

Course contents:

The course introduces to the students the meaning, principles and planning of technical experiment in the work of mechanical engineer. It also describes the basics of modern methods for measuring mechanical quantities and the structure of measuring instrument chain. It deals with the measurement of kinematic quantities, forces, torques, pressures and the analysis of continuous and discrete signals in the time and frequency domain. It defines the basic concepts and categories of reliability and technical diagnostics. Special attention is paid to vibroacoustic diagnostics.
Teaching methods and criteria:
 
Assesment methods and criteria linked to learning outcomes:

Conditions for passing graded assessment:
Active presence at seminars and laboratory exercises.
Completing of all protocols from experiments.

Conditions for passing exam:
Passing the final test (min. 50 points). Up to 100 points can be obtained, the final classification will be determined according to the ECTS scale.

Presence at lectures is recommended, presence at laboratory exercises is mandatory and checked by the teacher, one absence can be substituted by laboratory exercise with other group in the same week or by elaboration of substituting task. In case of long-term absence, the compensation of the lost lessons is under the competence of the course guarantor – elaboration of special task.
Controlled participation in lessons:
 
Type of course unit:
    Lecture  8 × 2 hrs. optionally                  
    Laboratory exercise  8 × 4 hrs. compulsory                  
Course curriculum:
    Lecture Measuring systems of electrical signals.
Computer systems for data acquisition and analysis.
Signal digitization and analysis of time-variable signals.
Statistical analysis of experimental data in time domain.
Analysis of measured signals in frequency domain.
Measurement of basic quantities from mechanics of solids.
Measurement of pressure, temperature and position triangulation.
Experiment planning and documentation.
Reliability and diagnostics.
Basics of technical diagnostics.
Vibration diagnostics of rotational machines.
    Laboratory exercise HW and SW of PC based data acquisition systems.
Statistical analysis of measured signals (MS Excel, Matlab).
FIR, IIR digital filtration, amplitude and phase characteristics.
Calibration of physical quantities transducers.
Crash test – presentation of DOE methodology.
Use of acoustics emission in technical diagnostics.
Diagnostics of gearboxes, acoustics diagnostics.
Practical realisation of rotary machines balancing.
Inner diagnostics of complex machinery.
Literature - fundamental:
1. WHEELER, Anthony J. a Ahmad R. GANJI, c1996. Introduction to engineering experimentation. 3. Englewood Cliffs, N.J.: Prentice Hall. ISBN 01-333-7411-4.
Literature - recommended:
1. BERNARD, Jaroslav, 1999. Technický experiment. Praha: Vydavatelství ČVUT. ISBN 80-010-1901-2.
2. KREIDL, Marcel a Radislav ŠMÍD, 2006. Technická diagnostika. Praha: BEN. ISBN 80-7300-158-6.
3. KREIDL, Marcel, 2005. Měření teploty: senzory a měřící obvody. Praha: BEN - technická literatura. Senzory neelektrických veličin. ISBN 80-730-0145-4.
4. TŮMA, Jiří, 1997. Zpracování signálů získaných z mechanických systémů užitím FFT. Praha: Sdělovací technika. ISBN 80-901-9361-7.
The study programmes with the given course:
Programme Study form Branch Spec. Final classification   Course-unit credits     Obligation     Level     Year     Semester  
N-KSI-P full-time study --- no specialisation -- Cr,Ex 4 Compulsory 2 1 W
C-AKR-P full-time study CZS -- Cr,Ex 4 Elective 1 1 W