Abbreviated Journal Title
Sensors
Keywords
surface acoustic wave; RFID; sensor; spread spectrum; SURFACE ACOUSTIC-WAVES; SENSORS; Chemistry, Analytical; Electrochemistry; Instruments & Instrumentation
Abstract
This paper will discuss a SAW passive, wireless multi-sensor system under development by our group for the past several years. The device focus is on orthogonal frequency coded (OFC) SAW sensors, which use both frequency diversity and pulse position reflectors to encode the device ID and will be briefly contrasted to other embodiments. A synchronous correlator transceiver is used for the hardware and post processing and correlation techniques of the received signal to extract the sensor information will be presented. Critical device and system parameters addressed include encoding, operational range, SAW device parameters, post-processing, and antenna-SAW device integration. A fully developed 915 MHz OFC SAW multi-sensor system is used to show experimental results. The system is based on a software radio approach that provides great flexibility for future enhancements and diverse sensor applications. Several different sensor types using the OFC SAW platform are shown.
Journal Title
Sensors
Volume
13
Issue/Number
5
Publication Date
1-1-2013
Document Type
Article
DOI Link
Language
English
First Page
5897
Last Page
5922
WOS Identifier
ISSN
1424-8220
Recommended Citation
Malocha, Donald C.; Gallagher, Mark; Fisher, Brian; Humphries, James; Gallagher, Daniel; and Kozlovski, Nikolai, "A Passive Wireless Multi-Sensor SAW Technology Device and System Perspectives" (2013). Faculty Bibliography 2010s. 4370.
https://stars.library.ucf.edu/facultybib2010/4370
Comments
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