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Engineering is fun in the instrumentation laboratory

Angéla Váradi, Tamás Bodolai

Department of Electrical and Electronic EngineeringDepartment of Electrical and Electronic EngineeringUniversity of Miskolc, Hungary

elkvsza@uni-miskolc.hu

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Teaching and research areas of the Department of Electrical and Electronic Engineeringof the Department of Electrical and Electronic Engineering

Electrical EngineeringElectronicsMeasurement 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

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Teaching activityTeaching activity of the Department of Electrical and Electronic Engineeringof the Department of Electrical and Electronic Engineering

Level Engineering Semester

Assistant MechanicalElectrical

4

BSc ElectricalMechanicalEnergeticsInformation TechnologyMechatronics

7

MSc MechanicalInformation Technology(Electrical is preparedfor accreditation)

4

PhD   6

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Two opposing trend

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sure

men

t evo

lutio

n

Mea

sure

men

t edu

catio

n

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CurriculaCurriculain BSCin BSCElectricalElectricalEngineeringEngineering

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MetrologyMetrologycoursescoursesin BSCin BSCElectricalElectricalEng.Eng.curriculumcurriculum

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Introductory course1 hour theory, 2 hours laboratory, 1 hour LabView

Measuring errors, standardsHandling of basic instruments, DMM, FG, OscilloscopeSoldering practiceLabView basics (1 hour per week)

First steps in LabView learning – student solution – not perfect, but working

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Measurement Science2 hours theory, 1 hour laboratory

Statistical analysis of measurement errorsBasic theory of computer-aided instrumentationLabView solutions for data analysis

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Practice in computer-aided instrumentation3 hour laboratory

Data acquisitionSensors

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Measurement systems1 hour theory, 2 hours laboratory

Remote controlled instrumentationIndustrial test methods

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Test and diagnostics4 hours per week

Project based team work(optional subject for certain specialisation)

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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

What we teach? How we teach?

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Student attitudes at the laboratory

??Your experiences?

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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”!

Researcherstudents

Most of them are not able to connect or not interested in connecting

the real life and the science

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Student attitudes at the laboratory

What is the ratio in your experiences?

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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%

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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.

??

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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.

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Student solution

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Measurements using capacitor microphone

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Student solution

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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

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Examples from the students projects

Cooling efficiency diagnostic of different materials used for power LEDs

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Examples from the students projectsDevelopment of light intensity sensor for control of window shutter

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Experiences

• Self-grouping is not successful – rearrangement

• Project proposals include too 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

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Remote controlled laboratory at the DEEE

Specialties:1. Open for all Internet users (web browser only necessary)2. The user is an active participant during the operation

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Web cameraLabView

Linear displacementsensor ciruit DC motor

test

Power LED test

Compact FielPoint

Remote controlled laboratory at the DEEE

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http://193.6.7.165/cFPe.html

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1. Task definition – from the real life

2. Team work – learning by doing

3. Internet based system – playing-doing-learning

Motivation methods

??

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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.

Conclusions

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Thank you for your kind attention!

Questions?Questions?

Angéla VáradiDepartment of Electrical and Electronic EngineeringDepartment of Electrical and Electronic Engineering

University of Miskolc, Hungaryelkvsza@uni-miskolc.hu