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

fYear

2011

fDate

22-24 Feb. 2011

Firstpage

312

Lastpage

317

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Sensors Applications Symposium (SAS), 2011 IEEE

Conference_Location

San Antonio, TX

Print_ISBN

978-1-4244-8063-0

Type

conf

DOI

10.1109/SAS.2011.5739788

Filename

5739788