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Wireless gas sensing based on a passive piezoelectric resonant sensor array through near-field induction.
- Source :
-
Applied Physics Letters . 12/26/2016, Vol. 109 Issue 26, p263503-1-263503-4. 4p. 1 Diagram, 3 Graphs. - Publication Year :
- 2016
-
Abstract
- We developed a wireless and passive piezoelectric resonant sensor for contimuous volatile organic compound detection. An equivalent circuit is proposed to model the sensing system, and Lamb wave resonators are adopted to demonstrate the wireless interrogation achieved by near-field inductive coupling. The wireless sensing system is employed to monitor the ethanol vapor concentration, and the sensitivity of the wireless sensor barely degrades compared to that of the wired one. Further, we simultaneously and wirelessly tracked several resonance frequencies of a monolithic sensor array, which demonstrates its potential for high-throughput and real-time point-of-care test. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 109
- Issue :
- 26
- Database :
- Academic Search Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 120535254
- Full Text :
- https://doi.org/10.1063/1.4973280