Engineering is fun in the instrumentation laboratory

1. Engineering is fun in the instrumentation laboratory Angéla Váradi, Tamás Bodolai Department of Electrical and Electronic Engineering University of Miskolc, Hungary elkvsza@uni-miskolc.hu

2. Teaching and research areas of the Department of Electrical and Electronic Engineering • Electrical Engineering • Electronics • Measurement and Instrumentation • Analysis of high power network disturbances • Flicker analysis • Efficiency of the electrical energy consumption • Electrical drive diagnostics • Analogue electronics • Power electronics • Car electronics • Development of instrumentation systems for mechatronic equipment • Remote controlled instrumentation systems

3. Teaching activityof the Department of Electrical and Electronic Engineering

4. Measurement education Measurement evolution Two opposing trend

5. Curricula in BSC Electrical Engineering

6. Metrology courses in BSC Electrical Eng. curriculum

7. Introductory course 1 hour theory, 2 hours laboratory, 1 hour LabView Measuring errors, standards Handling of basic instruments, DMM, FG, Oscilloscope Soldering practice LabView basics (1 hour per week) First steps in LabView learning – student solution – not perfect, but working

8. Measurement Science 2 hours theory, 1 hour laboratory Statistical analysis of measurement errors Basic theory of computer-aided instrumentation LabView solutions for data analysis

9. Practice in computer-aided instrumentation 3 hour laboratory Data acquisition Sensors

10. Measurement systems 1 hour theory, 2 hours laboratory Remote controlled instrumentation Industrial test methods

11. Test and diagnostics 4 hours per week Project based team work (optional subject for certain specialisation)

12. Laboratory load – Students motivation 200 student per semester – 2 hours per week – 14 students per group in average (2009-2010 academic year 1st semester: 310 students in 23 groups; 61 hours laboratory practices per week) Changing the concept Whatwe teach?Howwe teach?

13. Student attitudes at the laboratory ? Your experiences?

14. Researcher students Most of them are not able to connect or not interested in connecting the real life and the science Student attitudes at the laboratory • 5* students • „Oh. End of the seminar? Can I stay a bit?” • „The neutral mass” • „What is the minimum level?” • „I don’t mind”!

15. Student attitudes at the laboratory What is the ratio in your experiences?

16. Student attitudes at the laboratory • 5* students • „Oh. End of the seminar? Can I stay a bit?” • „The neutral mass” • „What is the minimum level?” • „I don’t mind”! 2% 10% ~40% 30% 20%

17. Importance of the task definition • Build a vibration sensing circuit using xxx type piezoelectric accelerometer and charge amplifier. Develop measuring software suitable for continuous data acquisition and signal display. Using FFT analysis define frequency spectrum of the vibration signal. ?

18. Importance of the task definition • Build a vibration sensing circuit using xxx type piezoelectric accelerometer and charge amplifier. Develop measuring software suitable for continuous data acquisition and signal display. Using FFT analysis define frequency spectrum of the vibration signal. • Build a sensing circuit and develop measuring and analyzing software suitable for display your mobile phone’s vibration-call and define 3 frequency components with the highest amplitude level.

19. Student solution

20. Measurements using capacitor microphone

21. Student solution

22. Test and Diagnostic – the project based course • Last semester of the study • Team work (4 students per team) • Team leader – the best project proposal • Realization and presentation • Self evaluation

23. Examples from the students projects Cooling efficiency diagnostic of different materials used for power LEDs

24. Examples from the students projects Development of light intensity sensor for control of window shutter

25. Experiences • Self-grouping is not successful –rearrangement • Project proposals includetoo much work for the defined time limit • Students enjoy the work (including electrical and mechanical tasks) • Self-evaluation is mostly fair • Half of the projects is part of the leader’s diploma work

26. Remote controlled laboratory at the DEEE • Specialties: • Open for all Internet users (web browser only necessary) • The user is an active participant during the operation

27. Remote controlled laboratory at the DEEE Web camera Compact FielPoint LabView Linear displacement sensor ciruit Power LED test DC motor test

28. http://193.6.7.165/cFPe.html

29. Motivation methods • Task definition – from the real life • Team work – learning by doing • Internet based system – playing-doing-learning ?

30. Conclusions Courses in metrology are practice oriented subjects, requiring activity and creativity of students. New practical experiments and teaching methods worked out at our department encourage students, increase their motivation. Project based course integrates theoretical knowledge and practical abilities, students solve real-life problems, while they learn to work in team. The remote controlled laboratory provides wide range of educational utilization, particular focus points depend on the specialization and the year of the study.

31. Thank you for your kind attention! Questions? Angéla Váradi Department of Electrical and Electronic Engineering University of Miskolc, Hungary elkvsza@uni-miskolc.hu