Ebook: Gas Sensing Fundamentals

This volume, which addresses various basic sensor principles, covers micro gravimetric sensors, semiconducting and nano tube sensors, calorimetric sensors and optical sensors. Furthermore, the authors discuss recent developments in the related sensitive layers including new properties of nano structured metal oxide layers. They provide in-depth insights into the unique chemistry and signal generation of copper oxide in percolating sensors and present a variety of applications of functional polymers made possible by proper imprinting. Highlights of the subjects covered include:?????????? require.;Preface; Contents; High-Temperature Gas Sensors; 1 Introduction; 1.1 Physical Principles and Temperature Ranges; 2 Potentiometric Gas Sensors; 2.1 Electrolytes; 2.2 Operation Principle; 2.3 Application Limits and Measurement Errors; 2.3.1 Partial Electronic Conduction of the Electrolyte; 2.3.2 Alteration of the Sample Gas Composition; 2.3.3 Polarization of the Electrodes by the Ionic Current; 2.3.4 Temperature Fluctuations at the Electrodes; 2.3.5 Insufficient Supply of the Reference Gas; 2.3.6 Unwanted Catalytic Reactions at the Electrodes; 2.4 Application Examples; 2.4.1 lambda-Probe.