Fluctuation-Enhanced Sensing

Despite the challenges, FES exhibits a sensitivity of orders of magnitude higher than that of conventional electronic noses and tongues. The paper by M. Piotto et al. proposes an original approach to model the noise density in sensors based on a single hot wire or pairs of thermally coupled wires. Since hot wires are used in a large variety of sensing devices and instruments, this study could give an important contribution to advanced sensor design. [...]UV light activates the gas sensing layer and improves gas detection at low concentrations of NO2.