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Sensors 2004, 4(6), 95-104; doi:10.3390/s40670095
Article

Study of Influencing Factors of Dynamic Measurements Based on SnO2 Gas Sensor

1,2,3, 1,2,* , 1 and 1,*
1 Hefei Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, 230031, P.R. China 2 Department of Chemistry, University of Science and Technology of China, Hefei, 230026, P.R.China 3 Department of Machines, Anhui University of Technology and Science, Wuhu, 241000, P.R.China
* Authors to whom correspondence should be addressed.
Received: 1 April 2004 / Accepted: 19 August 2004 / Published: 30 August 2004
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Abstract

The gas-sensing behaviour based on a dynamic measurement method of a single SnO2 gas sensor was investigated by comparison with the static measurement. The influencing factors of nonlinear response such as modulation temperature, duty ratio, heating waveform (rectangular, sinusoidal, saw-tooth, pulse, etc.) were also studied. Experimental data showed that temperature was the most essential factor because the changes of frequency and heating waveform could result in the changes of temperature essentially.
Keywords: Dynamic measurement; gas-sensing behaviour; influencing factors Dynamic measurement; gas-sensing behaviour; influencing factors
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Sun, Y.; Huang, X.; Meng, F.; Liu, J. Study of Influencing Factors of Dynamic Measurements Based on SnO2 Gas Sensor. Sensors 2004, 4, 95-104.

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