Devices for gas detection and analysis are on the market for a variety of applications. Disadvantages of commonplace gas analysers are their high price, difficult operation and large size. Cheaper and smaller gas sensors and detectors measure concentrations accurately, but are limited to specific gases. To overcome these drawbacks of current technologies was the motivation to study a new type of miniaturised gas analyser. This work deals with gas ionization by micro discharges, and analysis by ion mobility. The first chapters give an overview of past research in the field. The involved...