Active surface potential control in nanostructured MOX layers

The objective of the paper is to present the implementation of the first sigma-delta control of Surface Potential (SP) for nanostructured layers made of metal oxides in gas sensors. The objective of this type of controls is to improve the time response and reliability of these sensors. This is done by generating adequate temperature waveforms aiming at generating a constant surface potential in the nanostructures. By enforcing the condition constant SP the dynamics of all state variables is altered.