Electrical Measurements and Instrumentation C

Prerequisite:

Physics 1 (X02FY1)
Electronics (X34ELE)

Grading of the course requires grading of the following courses:

Electrical Circuits 2 (X31EO2)

Lecturer:

Tutor:

Supervisor:

Department of Measurement

Synopsis:

Electrical and electronic measuring instruments, digital instruments, methods of measurement of electrical quantities (voltage, current, power, frequency, resistance, capacitance and inductance), basic magnetic measurements, basics of measurement systems.

Requirements:

Syllabus of lectures:

Ref. [1] and [2] will be referred to during the lectures.

1. Introduction, accuracy of measurement, uncertainty estimation

2. Analogue meters. PMMC meter. Iron vane and electrodynamic meters

3. Measuring amplifiers with OA. Measurement of sum and difference. Converters of average value. Integrating amplifier

4. Measurement of frequency and phase shift

5. DC and AC current and voltage measurements - methods and instrumentation

6. DACs and ADCs

7. Measurement of resistance - methods, instruments, converters

8. Digital multimeters. RMS converters. Analogue multipliers. Instrument transformers

9. Measurement of power and energy (1- and 3-phase circuits)

10. Measurement of impedance and admittance (L-R, C-G) - methods and instruments

11. Measurement of B, H, and magnetising characteristics of ferromagnetic materials

12. Analogue and digitising oscilloscopes, sampling methods of measurement

13. Instruments controlled by microcontrollers. Spectrum analysers. Generators of measuring signals

14. Data acquisition systems

Syllabus of tutorials:

1. Introduction, safety in lab. Analogue oscilloscope - basic control and measurement

2. Frequency dependence of AC voltmeters. Voltage divider

3. Measuring amplifiers (low DC voltage). Low currents measurement

4. Influence of form factor on meter readings. Measuring rectifier

5. One-phase active power measurement. Frequency measurement

6. Principle of signal sampling. Test I

7. Digitising oscilloscope, application of passive probe. Measurement of low resistances

8. IEEE 488 measurement system. Test II

9. Three-phase power of imbalanced load

10. Imballanced Wheatstone bridge. Test III

11. Digital impedance and admitance meter

12. Amplitude permeability measurement. Test IV

13. Solving individual measurement tasks

14. Solving individual measurement tasks

Study Objective:

Study materials:

1. Haasz, V., Sedláček, M.: Electrical Measurements. Publ. House ČVUT,

Prague 2006

2. Sedláček, M., Holub, J., Hejtmanová, D.: Laboratory Exercises in

Electrical Measurements. Publ. House ČVUT, Prague 2005

Note:

Further information:

No time-table has been prepared for this course

The course is a part of the following study plans:

• Cybernetics and Measurements- structured studies (compulsory course)