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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Lopez Casique, A. Munoz Aguirre, S. Alcantara Iniesta, S. Beltran Perez, G. Castillo Mixcoatl, J. |
| Copyright Year | 2014 |
| Description | Author affiliation: Fac. de Cienc. Fisico Mat., Benemerita Univ. Autonoma de Puebla, Puebla, Mexico (Lopez Casique, A.; Munoz Aguirre, S.; Beltran Perez, G.) || Centro de Investig. en Dispositivos Semiconductores, Puebla, Mexico (Alcantara Iniesta, S.; Castillo Mixcoatl, J.) |
| Abstract | Electronic noses are systems that try to mimic the human nose. Currently gas sensors based on quartz crystal microbalance are frequently used to form such systems. These sensors have a sensing film deposited by the method of ultrasonic atomization. The sensor sensitivity is proportional to the square of the resonant frequency, therefore if it is desired to increase the sensitivity is necessary to increase the work frequency. In this we work show results with sensors whose fundamental frequency is 20MHz. The responses to ethanol are presented for seven sensors, each with a different sensing film. The sensitivities of the sensors were studied and it was found that the most sensitive sensor was Ethyl Cellulose. A comparison of the sensitivities between sensors with the same sensing film but with different working frequency (12MHz and 20MHz) was performed, being the most sensitivity the sensors of 20MHz. |
| Starting Page | 1 |
| Ending Page | 3 |
| File Size | 296281 |
| Page Count | 3 |
| File Format | |
| e-ISBN | 9781479968367 |
| DOI | 10.1109/IBERSENSOR.2014.6995524 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-10-15 |
| Publisher Place | Colombia |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Volatile organic compounds Sensitivity Films Ethanol Resonant frequency Electronic nose QCM sensor Gas detectors |
| Content Type | Text |
| Resource Type | Article |
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