| Title | Selective gas detection using uncoated SAW delay lines |
|---|---|
| Publication Type | Articolo su Rivista peer-reviewed |
| Year of Publication | 1997 |
| Authors | Penza, Michele, Anisimkin V.I., Maximov S.A., and Vasanelli L. |
| Journal | Sensors and Actuators, B: Chemical |
| Volume | 42 |
| Pagination | 103-107 |
| ISSN | 09254005 |
| Keywords | Acoustic delay lines, Acoustic waves, Sensors, Surface acoustic wave sensors, Thermal conductivity of gases |
| Abstract | Two approaches for gas recognition in binary mixtures have been developed for uncoated surface acoustic wave (SAW) sensors based on gas thermal conductivity principle. The first approach utilizes the difference thermal conductivity of the ambient atmosphere with respect to a reference gas as general property to test the responses of the sensing elements. Selecting the operating temperature and the reference gas, a single gas is distinctly detected. The second approach is based on the inherent property of the SAW devices, whose response is monitored by the temperature coefficient of delay (TCD). Choosing the operating temperature and the substrate material, the SAW response for a test gas is rejected. Experimental measurements are shown and discussed. © 1997 Elsevier Science S.A. |
| Notes | cited By 5 |
| URL | https://www.scopus.com/inward/record.uri?eid=2-s2.0-0031176051&doi=10.1016%2fS0925-4005%2897%2900191-3&partnerID=40&md5=c91a61ff1eff01fee7ea88340e6ec4ca |
| DOI | 10.1016/S0925-4005(97)00191-3 |
| Citation Key | Penza1997103 |
