Measurement Technique

Course Description

Fundamentals of measurements. Analogue and digital instruments: application and restrictions. Instruments with A/D converters. Quantisation principles. Transfer function and quantisation errors. Dual slope analogue to digital converters, voltage to frequency converters, - converters. Parameters of the converters, restrictions and uncertainty in measurement. Digital to analogue converters: transfer function and codes, parameters. Programmable devices and interfaces. Digital instruments (multimeters, multichannel, precise, electrometers): parameters and interpretation of the results. Interfaces for parallel transmission: GPIB (IEEE-488), VMEbus/VXIbus and PXI interface. Interface control and programme. Drivers for measuring instruments (SCPI, IVI, VISA). Accuracy and influencing quantities. Intererence and shielding. Noise and its cancellation. Measurement of low dc voltage and current. TEMS. Measurement of low and high impedances. Resistivity measurement of (semi)conductive materials. Applications.

General Competencies

The course gives a deep understanding of the application of instruments with A/D converters and programmable devices and interfaces. The students will have a theoretical knowledge to analyse the possibilities and restrictions of the use of modern measuring instruments, and the extensive knowledge in the realisation of the measuring systems. They will be able to design and develop such systems, to analyse the obtained results, and to implement a different programming techniques. Describes also elements of measuring techniques for measurements of low voltages and currents, and impedances, and their applications.

Learning Outcomes

  1. Describe needed characteristics of digital instruments for particular applications
  2. Classify different types of A/D converters
  3. Apply different interfaces controlled by the computer
  4. Describe possibilities and restrictions of the use of modern measuring instruments and systems
  5. Develop new automated methods of measurement
  6. Conclude about possible accuracy improvement for particular measurements

Forms of Teaching

Lectures

Lectures with presentations and examples

Exams

Written exam, homework, seminars

Laboratory Work

Laboratory experiments during lectures

Experiments

Whenever it is possible.

Experimental Exercises

Whenever it is possible.

Programming Exercises

Lab Windows/CVI LabVIEW

Grading Method

Continuous Assessment Exam
Type Threshold Percent of Grade Threshold Percent of Grade
Laboratory Exercises 0 % 10 % 0 % 10 %
Homeworks 0 % 10 % 0 % 0 %
Quizzes 0 % 10 % 0 % 0 %
Mid Term Exam: Written 0 % 25 % 0 %
Final Exam: Written 0 % 20 %
Final Exam: Oral 25 %
Exam: Written 0 % 50 %
Exam: Oral 40 %

Week by Week Schedule

  1. Fundamentals of measurements. Analogue and digital instruments: application and restrictions. Components of the measuring system: power supplies and cables.
  2. Instruments with A/D converters. Quantisation principles. Transfer function and quantisation errors.
  3. Dual slope analogue to digital converters, voltage to frequency converters, sigma-delta converters.
  4. Parameters of the converters, restrictions and uncertainty in measurement. Digital to analogue converters: transfer function and codes, parameters.
  5. Digital instruments (multimeters, multichannel, precise, electrometers): parameters and interpretation of the results.
  6. Interfaces for parallel transmission: GPIB (IEEE-488), VMEbus/VXIbus. Computer-based instruments. Realisation of the virtual and graphic user interfaces.
  7. Interface control and programme. Drivers for measuring instruments (SCPI, IVI, VISA). TCP/IP comunication. Standardisation of the interface.
  8. Mid-exam term.
  9. Accuracy and influencing quantities. Intererence and shielding. Noise and its cancellation.
  10. Measurement of low dc voltage and current. TEMS. Applications.
  11. Measurement of low and high impedances. Applications.
  12. Resistivity measurement of (semi)conductive materials. Measurement of other characteristics of materials, and applications.
  13. Laboratory exercise 1.
  14. Laboratory exercise 2.
  15. Final exam.

Study Programmes

University graduate
Electrical Engineering Systems and Technologies (profile)
Specialization Course (1. semester) (3. semester)

Literature

V. Bego (2003.), Mjerenja u elektrotehnici, Graphis, Zagreb
J. McGhee, W. Kulesza, M.J. Korczyński, I.A. Henderson (2001.), Measurement Data Handling, vol. 1 and vol. 2, Technical University of Lodz
J. M. Pieper (1998.), Standard Commands for Programmable Instruments, ACEA, Wierden, The Netherlands
K. James Woburn (2000.), PC Interfacing and Data Acquisition: Techinques for Measurements, Instrumentation and Control, MA: Butterworth-Heinemann
Robert H. Bishop (2003.), Learning With Labview 7 Express, Prentice Hall

Laboratory exercises

General

ID 127435
  Winter semester
4 ECTS
L2 English Level
L1 e-Learning
26 Lectures
0 Exercises
14 Laboratory exercises
0 Project laboratory

Grading System

85 Excellent
73 Very Good
61 Good
50 Acceptable