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11 May 2017 Modeling, fabrication, and testing of metamaterial based wireless temperature sensor (Conference Presentation)
Yirong Lin, Hasanul Karim, Luis Chavez, Norman Love
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Proceedings Volume 10168, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2017; 1016814 (2017) https://doi.org/10.1117/12.2263104
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2017, Portland, Oregon, United States
Abstract
This paper presents the fabrication, modeling and testing of a metamaterial based passive wireless temperature sensor consisting of an array of closed ring resonators (CRRs) embedded in a dielectric material matrix. A mixture of 70 vol% Boron Nitride (BN) and 30 vol% Barium Titanate (BTO) is used as the dielectric matrix and copper washers are used as CRRs. Conventional powder compression is used for the sensor fabrication. The feasibility of wireless temperature sensing is demonstrated up to 200 C. The resonance frequency of the sensor decreases from 11.93 GHz at room temperature to 11.85 GHz at 200 C, providing a sensitivity of 0.462 MHz/C. The repeatability of temperature sensing tests was carried out to quantify the repeatability. The highest standard deviation observed was 0.012 GHz at 200 C.
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Yirong Lin, Hasanul Karim, Luis Chavez, and Norman Love "Modeling, fabrication, and testing of metamaterial based wireless temperature sensor (Conference Presentation)", Proc. SPIE 10168, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2017, 1016814 (11 May 2017); https://doi.org/10.1117/12.2263104
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KEYWORDS
Metamaterials
Temperature sensors
Sensors
Dielectrics
Boron
Copper
Ferroelectric materials
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