Detail publikace

Analytical fluctuation enhanced sensing by resistive gas sensors

MACKŮ, R. KOKTAVÝ, P. SEDLÁK, P. SMULKO, J. TRAWKA, M.

Originální název

Analytical fluctuation enhanced sensing by resistive gas sensors

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Resistance fluctuations across polarised resistive gas sensors were studied in detail to evaluate sensor working conditions for detecting methane and ammonia at various concentrations. The 1/fnoise component typically dominates other noise sources up to a few kHz and can be utilised to improve gas selectivity when compared with measurements of the sensor DC resistance. The Arrhenius plot was created and the activation energy for the investigated gases was evaluated. Using this method, different ambient gases can be potentially detected only by means of a single commercial Taguchi gas sensor and 1/fnoise measurements at different temperatures of the gas sensing layer without a need of intense computations to get reliable results.

Klíčová slova

Gas sensing Taguchi gas sensor Power spectral density 1/fnoise Activation energy

Autoři

MACKŮ, R.; KOKTAVÝ, P.; SEDLÁK, P.; SMULKO, J.; TRAWKA, M.

Rok RIV

2015

Vydáno

27. 3. 2015

Nakladatel

Elsevier

ISSN

0925-4005

Periodikum

Sensors and Actuators B: Chemical

Ročník

2015

Číslo

213

Stát

Švýcarská konfederace

Strany od

390

Strany do

396

Strany počet

7

BibTex

@article{BUT114619,
  author="Robert {Macků} and Pavel {Koktavý} and Petr {Sedlák} and Janusz {Smulko} and Maciej {Trawka}",
  title="Analytical fluctuation enhanced sensing by resistive gas sensors",
  journal="Sensors and Actuators B: Chemical",
  year="2015",
  volume="2015",
  number="213",
  pages="390--396",
  doi="10.1016/j.snb.2015.02.114",
  issn="0925-4005"
}