Course description
a) Structure of measuring instruments and systems (structure and elements, static and dynamic characteristics, influence quantities, analog and digital conditioning and signal processing).
b) Electronic measurement instruments (multi-meter, analog and digital electronic oscilloscope, universal counter, instrument with computer) and suitable conditioning circuits.
c) Measurement communication interfaces, protocols and software;
d) Virtual measuring instruments and systems (structure, hardware, and software);
e) Measurement of electrical quantities and characteristics of measurement transducers;
f) Measurement bridges and reduction of the influence of disturbing and noise signals;
g) Characteristic measurement instruments and devices for different electrical fields (telecommunications, energetics, electronics …), for materials (specific conductivity), and for magnetic measurements.
Course is carried out on study programme
Electrical engineering 1st level
Objectives and competences
The course introduce basic knowledge of measurement instrumentation and systems. Objectives of the course are:
a) to learn basic structure of measuring instruments and systems, their static and dynamic performances, and dependence on the influence quantities;
b) to introduce the basic principles of digitalization of the measurement signals in the time and frequency domain;
c) to get acquainted with software and hardware and the elements for automation of measurement systems;
d) to learn advanced communication protocols and interfaces;
e) to analyses the influences of electrical and electronic measuring instruments onto the circuit properties;
f) to learn basic characteristics of measurements for different electrical fields (telecommunications, energetics, electronics …), and for (magnetic) materials.
Learning and teaching methods
Lectures, laboratory tutorials, solving practical tasks (problems).
Intended learning outcomes
After successful completion of the course, students should be able to:
a) distinguish and explain the basic structures of classical, and electrical instruments, and measuring instruments supported by computer;
b) evaluate static and dynamic characteristics of the measurement devices in the time and frequency domain;
c) analyses how measuring instruments work and their limitations in the context of the environment influence;
d) use advanced communication protocols and interfaces;
e) measure quantities in different electrical fields (telecommunications, energetics, electronics …);
f) test the electromagnetic characteristics of ferro-magnetic materials.
Reference nosilca
- Agrež D., "Weighted multi-point interpolated DFT to improve amplitude estimation of multi-frequency signal", IEEE Transactions on Instrumentation and Measurement, 2002, vol. 51, no. 2., pp. 287-292.
- Štremfelj J., Agrež D., "'Nonparametric estimation of power quantities in the frequency domain using Rife-Vincent windows", IEEE Transactions on Instrumentation and Measurement, 2013, vol. 62, no. 8, pp. 2171-2184.
- Beguš S., Bojkovski J., Drnovšek J., Geršak G., "Magnetic effects on thermocouples", Measurement science & technology, 2014, vol. 3, no. 25, pp. 1-11.
- Žužek V., Batagelj V., Drnovšek J., Bojkovski J., "Effect of bushings in thermometric fixed-point cells", Measurement, 2016, vol. 78, pp. 289-295.
- D. Agrež, "A/D Conversion with Non-uniform Differential Quantization", Design, Modeling and Testing of Data Converters, P.Carbone et all (eds.), pub. by Springer-Verlag Berlin Heidelberg, 2014, pp. 277-306.
Study materials
1. Morris A.S., Measurement and Instrumentation Principles, Third Edition, Oxford: Butterworth-Heinemann, 2010.
2. Bhuyan M., Intelligent Instrumentation: Principles and Applications, CRC Press, 2010.
3. Bentley, J.P., Principles of Measurement Systems (4. edition), Pearson, Prentice Hall, 2005.
4. Agrež D. in ostali, Meritve in merilna instrumentacija – laboratorijski praktikum (ver. 4), University of Ljubljana, Faculty of Electrical Engineering, 2014.
5. Tumanski S., Principles of Electrical Measurement, Taylor & Francis, CRC Press, 2006.