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Measurement of Electrical Circuits

* Exchange students do not have to consider this information when selecting suitable courses for an exchange stay.

Course Unit Code450-4094/01
Number of ECTS Credits Allocated4 ECTS credits
Type of Course Unit *Choice-compulsory type B
Level of Course Unit *Second Cycle
Year of Study *Second Year
Semester when the Course Unit is deliveredSummer Semester
Mode of DeliveryFace-to-face
Language of InstructionCzech
Prerequisites and Co-Requisites Course succeeds to compulsory courses of previous semester
Name of Lecturer(s)Personal IDName
VEL25Ing. Richard Velička, Ph.D.
Summary
Students will learn to use all types of measuring instruments from analog to digital to virtual instrumentation. Students will be able to measure basic electrical quantities and passive elements by a number of methods. Special chapters are dedicated to expressing the uncertainty of the measurement result.
The subject contains 10 laboratory measurements. Theoretical support for measurements is discussed in lectures.
Learning Outcomes of the Course Unit
Students will learn to use electrical measuring instruments, measure basic electrical quantities and passive elements. An integral part of the student's competence is also the knowledge of quantification of measurement uncertainty.
Course Contents
Lectures:
1.Accuracy and error of measurement. Errors of analog and digital instruments, errors of direct as well as indirect measurements, random errors, total measurement error. Measurement uncertainty.
No harmonic waveforms of electrical quantities. Representation of periodical waveforms using Fourier transformation; form, crest and distortion factors.
2.Measuring converters (MTI, MTU).
3.Analog measuring instruments.
4.Digital measuring instruments.
5.Analog oscilloscopes.
6.Digital oscilloscopes and recorders.
7.Frequency analyzers.
8.Virtual measuring instruments, GPIB, RS 232, USB, Ethernet, VXI/ PXI measurement systems, development programming environments.
9.Methods for measuring active electrical quantities (voltage, current, power, frequency, period, time intervals).
10.Methods for measuring passive electrical quantities (resistor, inductance, capacitance, dissipation factor, quality factor, impedance).
11.Magnetic measurements. Measuring of ferromagnetic characteristics, display of hysteresis loops.
12. Disturbing effects and their limitation, EMC.

Laboratories:
-Initial theoretical training, protocol requirements, safety in the laboratory.
- 1. Measuring of voltage and current.
- 2. Measuring of passive components.
- 3. Impact of frequency and waveform shape on measuring instrument's indication.
- 4. Analog oscilloscopes.
- 5. Measuring of single-phase power.
- 6. Measuring of powers across unbalanced three-phase load.
- 7. Measuring of frequency, period and phase shift.
- 8. Measurement of characteristics of ferromagnetic materials.
- 9. Virtual instrumentation – virtual measuring instruments
- 10. Digital oscilloscope and its control using GPIB bus.
- Practical test measurement.

Projects:
10 measurement reports - theme depends on laboratory exercises.

Tests:
10 test questions - 1 in each exercise, according to the measured task. The questions are tied to the measurement of the task.
Recommended or Required Reading
Required Reading:
1. VELICKA, R., BICOVSKA, B., ONDRACZKA, T.: Methods and Measurement in Electrical Engineering, VSB-TU Ostrava, INTERREG V-A, PROJECT REG. NUMBER:CZ.11.3.119/0.0/0.0/16_022/0001155, Ostrava 2021. 86 p. [On-Line]: http://lms.vsb.cz.
2. HAASZ, V,. SEDLÁČEK, M.: Electrical measurements. ČVUT, Praha 2006. ISBN 80-01-03375-9.
3. SEDLÁČEK, M., HOLUB, J., HEJTMANOVÁ, D.: Laboratory exercises in electrical measurements. ČVUT, Praha 2011. ISBN 978-80-01-04883-
1. VELIČKA, R., BIČOVSKÁ, B., ONDRACZKA, T.: Metody a měření v elektrotechnice, VŠB-TU Ostrava, INTERREG V-A, PROJECT REG. NUMBER:CZ.11.3.119/0.0/0.0/16_022/0001155, Ostrava 2021. 82 s. Dostupné z: http://lms.vsb.cz.
Recommended Reading:
1. WEBSTER, John G., ed. Electrical measurement, signal processing, and displays. Boca Raton: CRC Press, c2004. ISBN 0-8493-1733-9.
2. GRABE, M.: Measurement Uncertainties in Science and Technology, Springer 2005, ISBN 978-3-540-27319-6.
1. HAASZ, V. SEDLÁČEK, M.: Elektrická měření, Přístroje a metody. ČVUT, Praha 2005, ISBN 80-01-02731-7.
2. BARTUŠEK, K.: Měření v elektrotechnice. Brno VUTIUM, 2010. ISBN 978-80-214-4160-6.
3. Boháček, J.: Metrologie, ČVUT Praha, 2017, ISBN 978-80-01-06169-5.
4. DRAXLER, K., KAŠPAR P. RIPKA P.: Magnetické prvky a měření. České vysoké učení technické, 2008. ISBN 978-80-01-03970-0.
5. KOVAL, L. a kol.: Elektrická měření, VŠB-TU Ostrava, 2012. 150 s. Dostupné z: http://lms.vsb.cz.
6. KOVAL, L. a kol.: Elektrická měření, návody do cvičení, VŠB Ostrava, 2012. 84 s. Dostupné z: http://lms.vsb.cz.

Planned learning activities and teaching methods
Lectures, Individual consultations, Experimental work in labs, Teaching by an expert (lecture or tutorial)
Assesment methods and criteria
Task TitleTask TypeMaximum Number of Points
(Act. for Subtasks)
Minimum Number of Points for Task Passing
Graded creditGraded credit100 51