Virtual sensing
Virtual sensing techniques,[1] also called soft sensing,[2] proxy sensing, inferential sensing, or surrogate sensing, are used to provide feasible and economical alternatives to costly or impractical physical measurement instrument. A virtual sensing system uses information available from other measurements and process parameters to calculate an estimate of the quantity of interest.
In the field of gas sensors, an array of virtual sensors[3] can substitute electronic noses. Virtual gas sensors can be obtained by using a single sensor working in dynamic mode, i.e., working in repeated cycles that include a customized range of temperature, voltage, or both, which is equivalent to an array of real sensors. The choice of the temperature or voltage range depends on the gas type and its concentration.
References
[edit | edit source]- ^ Virtual sensing techniques and their applications Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ A systematic approach for soft sensor development Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Benefits of virtual sensors for air quality monitoring in humid conditions Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).