Title :
Temperature sensor tag for passive UHF RFID systems
Author :
Virtanen, Juha ; Ukkonen, Leena ; Björninen, Toni ; Sydänheimo, Lauri ; Elsherbeni, Atef Z.
Author_Institution :
Dept. of Electron., Tampere Univ. of Technol., Rauma, Finland
Abstract :
This paper presents a novel temperature sensor tag for passive UHF RFID systems and discusses a method to perform measurements in practice. The developed sensor tag is fabricated from cost-efficient and commercially available materials. Distilled water is used as the temperature sensitive material instead of the more traditional semi-conducting materials. The tag is fabricated on a FR-4 substrate which provides a rigid backing for the tag. The sensor can be constructed with a commercial passive UHF RFID IC. The temperature sensor tag´s measurement range spans from a theoretical low of 0 up to over 74 °C. The read range of the tag, in free space, is over 7 metres.
Keywords :
radiofrequency identification; temperature sensors; FR-4 substrate; distilled water; passive UHF RFID IC system; rigid backing; semiconducting material; temperature sensitive material; temperature sensor tag; Frequency measurement; Integrated circuits; Radiofrequency identification; Sensitivity; Temperature; Temperature measurement; Temperature sensors; Distilled water; Passive; RFID; Sensor; Temperature; UHF;
Conference_Titel :
Sensors Applications Symposium (SAS), 2011 IEEE
Conference_Location :
San Antonio, TX
Print_ISBN :
978-1-4244-8063-0
DOI :
10.1109/SAS.2011.5739788
