Physics – General Physics
Scientific paper
2007-01-22
Nanotechnology Perceptions 3 (2007) 43-52.
Physics
General Physics
Second version of draft/preprint of invited paper in the journal Nanotechnology Perceptions. Small corrections
Scientific paper
Information theoretical tools are applied for the study of the sensitivity and selectivity enhancements of resistive fluctuation-enhanced sensors. General considerations are given for the upper limit of selectivity enhancement. The signal-to-noise ratio and information channel capacity of fluctuation-enhanced chemical sensors is compared to that of classical sensors providing a single output. The considerations are done at the generic level with a few concrete examples and include the estimation of scaling relations between the sensor size, speed of measurements, sampling rate, measurement time, signal power and noise power.
Granqvist Claes-Goran
Heszler Peter
Kish Laszlo B.
Smulko Janusz
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