NDLI: Temperature dependence of the quality factor in LC-type passive wireless temperature sensors

Content Provider	IEEE Xplore Digital Library
Author	Qing-Ying Ren Li-Feng Wang Qing-An Huang
Copyright Year	2015
Description	Author affiliation: Key Lab. of MEMS of the Minist. of Educ., Southeast Univ., Nanjing, China (Qing-Ying Ren; Li-Feng Wang; Qing-An Huang)
Abstract	In this paper, a LC tank circuit has been designed, fabricated and tested, to study the temperature dependence of the quality factor in the LC-type passive wireless temperature sensors. The performance of the wireless signal transmission is studied by a group of inductances and by studying the impedance characterization of the LC tank. A theoretical model of temperature dependence of quality factor is established, and is found to be in good agreement with the experiment results. The quality factor Q as a function of temperature, expressed in Q-factor shift per temperature difference, is 0.0246/ °C, which compares well to the theoretically determined slope of 0.0275/ C. Up to 2.5% change in quality factor per C change of temperature is demonstrated. Both the resonance frequency and the quality factor Q of the LC sensor are strongly dependent on temperature.
Sponsorship	IEEE
Starting Page	1
Ending Page	4
File Size	1069703
Page Count	4
File Format	PDF
e-ISBN	9781479982035
DOI	10.1109/ICSENS.2015.7370242
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-11-01
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Temperature sensors Wireless sensor networks Wireless communication Temperature measurement Q-factor Impedance Temperature temperature dependence passive wireless sensor temperature sensor quality factor
Content Type	Text
Resource Type	Article

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