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Development of smart tongue devices for measurement of liquid properties
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Cole, Marina, Sehra, G., Gardner, J. W. and Varadan, V. K. (2004) Development of smart tongue devices for measurement of liquid properties. IEEE Sensors Journal, 4 (5). pp. 543-550. doi:10.1109/JSEN.2004.832855
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Official URL: http://dx.doi.org/10.1109/JSEN.2004.832855
Abstract
In this paper, we describe the design and characterization of shear horizontal surface acoustic wave devices for the analysis of liquid samples. Devices were fabricated on both 36degrees rotated Y-cut X-propagating LiTaO3 and LiNbO3 substrates. The design consists of a dual delay-line configuration where one delay line is metallized and shielded, while the other is left electrically active. Experiments to characterize the devices in terms of sensitivity, temperature dependence, and mass loading have been conducted and the results presented. Different liquid samples, i.e., water, orange juice, and milk, are 100% linearly separable using principal components analysis. In addition, it is possible to measure the fat content (+/-0.1%) as well as the freshness of full (whole) milk.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering Q Science > QC Physics |
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| Divisions: | Faculty of Science > Engineering | ||||
| Journal or Publication Title: | IEEE Sensors Journal | ||||
| Publisher: | Institute of Electrical and Electronic Engineers | ||||
| ISSN: | 1530-437X | ||||
| Official Date: | 3 September 2004 | ||||
| Dates: |
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| Volume: | 4 | ||||
| Number: | 5 | ||||
| Number of Pages: | 8 | ||||
| Page Range: | pp. 543-550 | ||||
| DOI: | 10.1109/JSEN.2004.832855 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access |
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