Title :
An antenna-based RFID expansion joint monitor
Author :
Bhattacharyya, R. ; Kalansuriya, Prasanna ; Sarma, Sridevi
Author_Institution :
Auto ID Labs., Massachusetts Inst. of Technol., Cambridge, MA, USA
Abstract :
We present the design and preliminary test results from an RFID-based sensor used for expansion joint gap monitoring. Discrete increments in gap length are related to a change in signal response of an array of RFID tags. We demonstrate that our sensor can be reliably used to monitor gap increments of 1 inch over a read distance of at least 0.5 m. Prospective design improvements and future research directions are also discussed.
Keywords :
loop antennas; radiofrequency identification; sensor arrays; RFID based sensor; RFID tags; expansion joint gap monitoring; gap length; inductively coupled loop antennas; size 1 in; Antennas; Arrays; Joints; Monitoring; Radiofrequency identification; Temperature measurement; Temperature sensors;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-5315-1
DOI :
10.1109/APS.2013.6711811
