Aim
Measurement technology and sensors are important in every field of activity for an engineer. For example, detailed studies of brain signals, detection of light in optical fibres or supervision of process industries. The importance of sensors in modern society is increasing rapidly, especially in the field of micro sensors. There are plenty of examples where sensors are needed to gain increased safety (i.e. cars), decreased influence on the environment (i.e. process control in industry, pollution control in cars) and more efficient use of energy (i.e. in-house climate control). Other examples where sensors are expected to get vital importance is Virtual Reality (i.e. remote controlled robotic operations in medicine as well as computer games and simulators).

Knowledge and understanding
For a passing grade the student must

• Have knowledge of different measurement methods and there functions for measure voltage, current, impedance, time and frequency

• Have a comprehension of limitations of measurement methods to avoid errors in measurements

• Have basic knowledge about different sensors functions, characteristics and limitations for physical, chemical and biological measurements.

• Be able to choose a suitable sensor design and instruments in a given measurement situation and and perform measurements.

Skills and abilities
For a passing grade the student must

• Have achieved experience in experimental work.

• Be able to communicate experimental results in writing.

• Be able to search, sort out and acquire information from an extensive information material with limited reading instructions.

Judgement and approach
For a passing grade the student must

• Be able to critical judge the results to minimise the risk of errors in measurements and misreadings.

Contents
Fundamental concepts for electrical measurements. Analog and digital oscilloscopes, impedance measurements with wheastone bridge, measurement of time and frequency with universal counter, measurement of frequency spectra with spectrum- and FFT-analyser (FFT – Fast Fourier Transform). Design of measurement systems.

Furthemore, the course considers the most common sensors and measurement methods for measurement of physical, chemical and bio-chemical measurement parameters in the field of process- and manufacturing industry as well as medicine and society. Also, the future use of micro and nano sensors is discussed.

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