Credits: 3. Grading scale: UG. Optional for: D3. Course coordinator: Johan Nilsson, Inst f elektrisk mätteknik. Prerequisites: ETI190 or ETI195/196 Electronics. Assessment: Continuous examination throughout the laboratory work. Homepage: http://www.elmat.lth.se.

Aim
Electrical measurements are encountered in almost all areas where M. Sc. Electrical Engineers are active, e.g. detailed studies on signals from brain nerve cells, detection of light in optical fibres or supervision of the production in the process industry. New measurement methods and transducers are developed at an increasing speed, fuelled not to the least by the results in the area of micro system technology.

Knowledge goals
After the completion of the course the students should have gained knowledge

• about different electrical measurement methods and their construction for the measurements of voltage, current, impedance, time, frequency and frequency spectra.

• about limitations of the measurement methods and influence of noise in order to avoid measurement errors.

• skill in the selection of the most suitable measurement method and instrument for a given task and be able to conduct the measurements.

• experience in experimental work.

Contents
Fundamental concepts like loading of the measurement objects, influence of noise, uncertainty in the results and calibration. Analogue and digital oscilloscopes, digital multimeter, measurement of impedance with bridge- and voltage/current-methods, measurement of time and frequency with universal counter, measurement of frequency spectra with spectrum- and FFT-analyser (FFT – Fast Fourier Transform).

Literature
Carlsson, Johansson: Modern elektronisk mätteknik. Liber. Labkompendium.