Smart operation and data evaluation of gas sensing systems

Monday, August 20, 2012 to Wednesday, August 22, 2012

 

Infotech Oulu Doctoral Program

Smart operation and data evaluation of gas sensing systems

Date: August 20-22, 2012

Lecturer: Professor Andreas Schütze, Saarland University, Saarbrücken, Germany
Exercises: Christian Bur


August 20, room TS127

9-10 Introduction to gas sensors and electronic noses

Function principles of various gas sensors: electrochemical cells, pellistors, semiconductor gas sensors, GasFETs. Selectivity enhancement by multisensor systems (“electronic nose”)

10-12 Dynamic operation of gas sensors

Operating principles: temperature cycling, impedance spectroscopy, pulsed operation, field effect. Circuits and systems for dynamic operation and evaluation. Application example fire detection: Test systems for evaluation and calibration, field testing.

13-15 Fundamentals of multisensor signal evaluation
The four step concept of pattern recognition: data preprocessing, feature extraction, dimension reduction, classification. Application example ozone detection and quantification.

August 21, room TS127

9-11 Multivariate data analysis using statistical methods

Principle component analysis (PCA): Concept, mathematical description, realization, examples. Linear discriminant analysis (LDA): Concept, mathematical description, realization, examples

11-12 Other techniques and concluding remarks

Artifical Neural Networks (ANN), Self Organizing Maps (SOM), fuzzy logic, application requirements for safety and security

Room TS134
13-16 Computer exercises (Processing and analysis of given data sets)

August 22, room TS134

9-12 Computer exercises (Processing and analysis of given data sets)


More information: Anita Lloyd Spetz, Jyrki Lappalainen


 

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Last updated: 20.8.2012