at Google ScholarTitle data
Fischerauer, Gerhard ; Dickert, Franz Ludwig ; Forth, Peter ; Knauer, Ulrich:
Chemical sensors based on SAW resonators working at up to 1 GHz.
In:
1996 IEEE Ultrasonics Symposium Proceedings. -
Piscataway, NJ
: IEEE
,
1996
. - pp. 439-442
ISBN 0-7803-3615-1
DOI: https://doi.org/10.1109/ULTSYM.1996.584007
Abstract in another language
We have investigated SAW chemical sensors working at 434 MHz and at 1 GHz, the latter frequency being the highest value reported in this context to date. In particular, the theoretical claim that the gas sensitivity is proportional to the frequency has been checked experimentally. The results of a noise characterization clearly show that the detection limit decreases with frequency even when noise is taken into account. By using molecular cavity compounds such as calixarenes, cyclodextrines and cyclophanes or "molecularly imprinted" polymers as chemically sensitive coatings, sub-ppm traces of halogenated and aromatic hydrocarbons such as toluene or xylene have been detected under ambient conditions.
Further data
| Item Type: | Article in a book |
|---|---|
| Refereed: | No |
| Keywords: | Chemical sensors; hydrocarbons; surface acoustic waves; SAW; sensitivity; frequency dependence |
| Institutions of the University: | Faculties > Faculty of Engineering Science > Chair Measurement and Control Technology > Chair Measurement and Control Technology - Univ.-Prof. Dr.-Ing. Gerhard Fischerauer |
| Result of work at the UBT: | No |
| DDC Subjects: | 600 Technology, medicine, applied sciences > 620 Engineering |
| Date Deposited: | 24 Jul 2024 12:01 |
| Last Modified: | 24 Jul 2024 12:01 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/90035 |