Response mechanism for surface acoustic wave gas sensors based on surface-adsorption.
Response mechanism for surface acoustic wave gas sensors based on surface-adsorption.
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DOI:
10.3390/s140406844
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发表时间:
2014-04-16
期刊:
影响因子:
--
通讯作者:
Lu Y
中科院分区:
文献类型:
--
作者:
Liu J;Lu Y
A theoretical model is established to describe the response mechanism of surface acoustic wave (SAW) gas sensors based on physical adsorption on the detector surface. Wohljent's method is utilized to describe the relationship of sensor output (frequency shift of SAW oscillator) and the mass loaded on the detector surface. The Brunauer-Emmett-Teller (BET) formula and its improved form are introduced to depict the adsorption behavior of gas on the detector surface. By combining the two methods, we obtain a theoretical model for the response mechanism of SAW gas sensors. By using a commercial SAW gas chromatography (GC) analyzer, an experiment is performed to measure the frequency shifts caused by different concentration of dimethyl methylphosphonate (DMMP). The parameters in the model are given by fitting the experimental results and the theoretical curve agrees well with the experimental data.
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影响因子:
8.4
作者:
Fan, Li;Zhang, Shu-yi;Zhang, Hui
通讯作者:
Zhang, Hui
影响因子:
4.6
作者:
Sadek, A. Z.;Wlodarski, W.;Kaner, R. B.
通讯作者:
Kaner, R. B.
DOI:
10.1143/jjap.43.2799
发表时间:
2004-05-01
期刊:
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS
影响因子:
--
作者:
Shiokawa, S;Kondoh, J
通讯作者:
Kondoh, J
DOI:
10.3390/s111211871
发表时间:
2011
期刊:
Sensors (Basel, Switzerland)
影响因子:
--
作者:
Liu J;Wang W;Li S;Liu M;He S
通讯作者:
He S
影响因子:
7.4
作者:
MARTIN, SJ;FRYE, GC;SENTURIA, SD
通讯作者:
SENTURIA, SD