The topics covered in this chapter establish the connection between gas sensors and pattern recognition, the two fundamental modules of an odor-sensing instrument that are covered in Chapters 4 and 6, respectively. A number of electronic circuits are involved in integrating pattern analysis algorithms with the underlying chemical transductionmechanisms, as shown in Fig. 5.1. First, the response...

The conductive blend of the poly (3,4-ethylene dioxythiophene) and polystyrene sulfonated acid (PEDOT-PSS) polymers were doped with Methyl Red (MR) dye in the acid form and were used as the basis for a chemiresistor sensor for detection of ethanol vapor. This Au | Polymers-dye blend | Au device was manufactured by chemical vapor deposition and spin-coating, the first for deposition of the metal...

Abstract The occurrence of electrical discharges in gas detectors restricts their dynamic range and degrades performance. Among the different methods developed to mitigate discharge effects, use resistive materials detector assembly was found be very effective. In this work, we present results a comparative study Thick-GEM-based WELL-type — with without elements. We new method measure resistive...

OF THESIS GAS SENSING PROPERTIES AND TRANSPORT PROPERTIES OF MULTI WALLED CARBON NANOTUBES Multi walled carbon nanotubes (MWCNT) grown in highly ordered porous alumina templates were incorporated into a resistive gas sensor design and were evaluated for their sensitivities. The material characteristics and electrical properties of the nanotubes were analyzed. A study was undertaken to elucidate...