DocumentCode :
2182989
Title :
UHF RFID humidity sensor tag based on hygroscopic polymeric load
Author :
Manzari, S. ; Occhiuzzi, C. ; Nawale, S. ; Catini, A. ; Natale, C. Di ; Marrocco, G.
Author_Institution :
DISP, Univ. of Roma Tor Vergata, Rome, Italy
fYear :
2012
fDate :
26-30 March 2012
Firstpage :
3030
Lastpage :
3033
Abstract :
Passive UHF RFID tags, beside item labelling, are also able to exploit capability of sensing the physical state of the tagged object as well as of the surrounding environment. Here a family of polymer-doped tags are proposed and fully characterized for the detection of ambient humidity. A sensitive chemical species based on PEDOT: PSS is used to dope a properly shaped slot carved into a folded-like patch tag. The sensing capabilities of the radio-sensor are investigated by means of measurements for different quantities of sensitive material and in cyclic exposures. The device could have interesting application in the assessment of the air quality in living and controlled rooms, in the monitoring of the conservation state of foods, in the preservation of walls, and even to monitor the healing degree of wounds.
Keywords :
UHF detectors; UHF measurement; humidity sensors; radiofrequency identification; PEDOT:PSS; UHF RFID humidity sensor tag; air quality assessment; ambient humidity detection; controlled rooms; cyclic exposures; folded-like patch tag; food conservation state monitoring; hygroscopic polymeric load; living rooms; passive UHF RFID tags; polymer-doped tags; properly chemical species; radio-sensor sensing capability; sensitive material; tagged object physical state sensing; wall preservation; wounds healing degree monitoring; Antenna measurements; Humidity; Plastics; Power measurement; Radiofrequency identification; Sensitivity;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Antennas and Propagation (EUCAP), 2012 6th European Conference on
Conference_Location :
Prague
Print_ISBN :
978-1-4577-0918-0
Electronic_ISBN :
978-1-4577-0919-7
Type :
conf
DOI :
10.1109/EuCAP.2012.6206150
Filename :
6206150
Link To Document :
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