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SAW devices : sensitivity enhancement in going from 80 MHz to 1 GHz

Title data

Dickert, Franz L. ; Forth, Peter ; Bulst, Wolf-Eckhart ; Fischerauer, Gerhard ; Knauer, Ulrich:
SAW devices : sensitivity enhancement in going from 80 MHz to 1 GHz.
In: Sensors and Actuators B: Chemical. Vol. 46 (15 February 1998) Issue 2 . - pp. 120-125.
ISSN 0925-4005
DOI: https://doi.org/10.1016/S0925-4005(98)00097-5

Abstract in another language

SAW-devices with the highest resonance frequency (1 GHz) ever reported in chemical sensor applications have been tested. The sensor response increases in a parabolic manner with the resonance frequency, as is shown, in going from 80 MHz to 1 GHz, whereas the noise level only increases approximately linearly. If a linked cyclodextrin in a height of 60 nm is used as a sensitive coating, a sensor response of 61 kHz/1000 ppm of toluene is obtained. This makes the detection of aromatic hydrocarbons, such as toluene or xylene, down to 1 ppm easily possible.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: SAW devices; supramolecular chemistry; cyclodextrins; aromatic hydro-carbons
Institutions of the University: Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Measurement and Control Technology
Faculties > Faculty of Engineering Science > Chair Measurement and Control Technology > Chair Measurement and Control Technology - Univ.-Prof. Dr.-Ing. Gerhard Fischerauer
Faculties
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 25 Feb 2016 14:56
Last Modified: 25 Feb 2016 14:56
URI: https://eref.uni-bayreuth.de/id/eprint/31131