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RFID tag antenna based temperature sensing using shape memory polymer actuation

Author(s)
Bhattacharyya, Rahul; Di Leo, Claudio V; Florkemeier, Christian; Sarma, Sanjay E; Anand, Lallit
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Abstract
Ubiquitous temperature monitoring is important to boost visibility in applications such as cold supply chain management. Current sensors monitor and log a time history of temperature data, but their cost limits the scale of deployment. In this paper, we propose an ultra-low cost temperature threshold sensor using the UHF RFID tag antenna as a sensing mechanism. Permanent changes are induced in the tag antenna electrical properties upon violation of a temperature threshold. This manifests itself in a change in backscatter power detected at the reader. We demonstrate how these changes are effected via shape memory polymer actuation. Experiments demonstrate that cheap, reliable temperature threshold sensors can be developed which are independent of the material of deployment, orientation of the sensor, which have a read range of over 3 m and which have a customizable critical temperature threshold.
Date issued
2011-01
URI
http://hdl.handle.net/1721.1/117424
Department
Massachusetts Institute of Technology. Department of Civil and Environmental Engineering; Massachusetts Institute of Technology. Department of Mechanical Engineering
Journal
2010 IEEE Sensors
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
Bhattacharyya, Rahul, Claudio Di Leo, Christian Floerkemeier, Sanjay Sarma, and Lallit Anand. “RFID Tag Antenna Based Temperature Sensing Using Shape Memory Polymer Actuation.” 2010 IEEE Sensors (November 2010).
ISBN
978-1-4244-8170-5

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