450-2018/04 – Electrical Measurements (EM)
Gurantor department | Department of Cybernetics and Biomedical Engineering | Credits | 6 |
Subject guarantor | Ing. Richard Velička, Ph.D. | Subject version guarantor | Ing. Richard Velička, Ph.D. |
Study level | undergraduate or graduate | Requirement | Compulsory |
Year | 1 | Semester | summer |
| | Study language | English |
Year of introduction | 2019/2020 | Year of cancellation | |
Intended for the faculties | FEI | Intended for study types | Bachelor |
Subject aims expressed by acquired skills and competences
Students will learn to use electrical measuring devices, measure basic electrical quantities and passive elements.
An integral part of the student's competence is also the knowledge of calculating the deviation and uncertainty of the measurement result.
Teaching methods
Lectures
Individual consultations
Experimental work in labs
Project work
Teaching by an expert (lecture or tutorial)
Summary
Students will learn to use all types of measuring devices, from analog to digital to virtual, which they will also try to create. They will be able to measure basic electrical quantities and passive elements using various methods.
An integral part of every measurement is also knowledge of the calculation of deviation (error), the uncertainty of the measurement result.
Compulsory literature:
Recommended literature:
Way of continuous check of knowledge in the course of semester
Verification of study:
Regular handover of protocols and writing of partial tests.
Conditions for credit:
Full attendance in laboratory training including the practical test measurement. It is necessary to get at least 51 assessing points.
E-learning
Study according to the materials in Methods and measurements in electrical engineering listed in the LMS system (https://lms.vsb.cz).
Other requirements
There are not defined other requirements for student.
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
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.
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction