Electrical Measurements

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Course Unit Code450-2018/01
Number of ECTS Credits Allocated6 ECTS credits
Type of Course Unit *Compulsory
Level of Course Unit *First Cycle
Year of Study *First Year
Semester when the Course Unit is deliveredSummer Semester
Mode of DeliveryFace-to-face
Language of InstructionCzech, English
Prerequisites and Co-Requisites Course succeeds to compulsory courses of previous semester
Name of Lecturer(s)Personal IDName
KOV04doc. Ing. Ludvík Koval, Ph.D.
Summary
Students learn to use all types of measuring instruments such as analog, digital as well as virtual ones, which they will even be able to try to get together. Different methods will be able to measure basic electrical quantities and passive components.
An integral part of each measurement is the knowledge of quantifying the uncertainty of measurement.
Learning Outcomes of the Course Unit
Students learn to use electrical measuring instruments, measuring the basic electrical parameters and passive components.
An integral part of the student's knowledge competencies is quantifying the uncertainty of measurement.
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.
No harmonic waveforms of electrical quantities. Representation of periodical waveforms using Fourier transformation; form, crest and distortion factors.
2.Measuring converters.
3.Analog and digital measuring instruments.
4.Analog oscilloscopes.
5.Digital oscilloscopes.
6.Chart recording instruments.
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, safety in the laboratory.
-Measuring of voltage and current.
-Measuring of passive components.
-Impact of frequency and waveform shape on measuring instrument's indication.
-Analog oscilloscopes.
-Measuring of single-phase power.
-Measuring of powers across unbalanced three-phase load.
-Measuring of frequency, period and phase shift.
-Magnetic measurements.
-Virtual measuring instruments, LabView.
-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 question in each exercise.
Recommended or Required Reading
Required Reading:
1. HAASZ, V,. SEDLÁČEK, M.: Electrical measurements. ČVUT, Praha 2006. ISBN 80-01-03375-9.
2. SEDLÁČEK, M., HOLUB, J., HEJTMANOVÁ, D.: Laboratory exercises in electrical measurements. ČVUT, Praha 2011. ISBN 978-80-01-04883-2.
1. KOVAL, L. a kol.: Elektrická měření, VŠB-TU Ostrava, 2012. 150 s. Dostupné z: http://lms.vsb.cz.
2. KOVAL, L. a kol.: Elektrická měření, návody do cvičení, VŠB Ostrava, 2012. 84 s. Dostupné z: http://lms.vsb.cz.
3. SEDLÁČEK, M., HOLUB, J., HEJTMANOVÁ, D.: Laboratory exercises in electrical measurements. ČVUT, Praha 2011. ISBN 978-80-01-04883-2.

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.
Planned learning activities and teaching methods
Lectures, Individual consultations, Experimental work in labs, Project work
Assesment methods and criteria
Task TitleTask TypeMaximum Number of Points
(Act. for Subtasks)
Minimum Number of Points for Task Passing
Exercises evaluation and ExaminationCredit and Examination100 (100)51
        Exercises evaluationCredit45 (45)25
                ProtokolyLaboratory work10 0
                TestWritten test10 0
                Kontrolní měřeníOther task type25 5
        ExaminationExamination55 26