NDLI: Wireless Passive Temperature Sensors Using Integrated Cylindrical Resonator/Antenna for Harsh-Environment Applications

Content Provider	IEEE Xplore Digital Library
Author	Haitao Cheng Xinhua Ren Ebadi, S. Yaohan Chen Linan An Xun Gong
Copyright Year	2001
Abstract	Wireless passive temperature sensors for harsh-environment applications based on cylindrical microwave cavity resonators are presented herein. Slot antennas are integrated with sensors with zero additional volume. The resonant frequencies of the sensors are determined by the dielectric constants of the ceramic materials, which monotonically increase versus temperature. Silicoboron carbonitride (SiBCN) ceramic materials, which are very robust inside harsh environments featuring high temperatures and corrosive gases, are optimized in this paper to reduce dielectric losses and increase sensing ranges and accuracies. A robust interrogation antenna is developed to wirelessly measure the sensors up to 1300 °C. Two sensors based on Si₆B₁ and Si₄B₁ ceramics are measured up to 1050 °C and 1300 °C, respectively, with a sensitivity of ~0.78 MHz/°C at 1050 °C. This type of wireless, passive, and robust sensor can be used for many harsh-environment applications, such as gas turbines.
Sponsorship	IEEE Sensors Council
Starting Page	1453
Ending Page	1462
Page Count	10
File Size	2711132
File Format	PDF
ISSN	1530437X
Volume Number	15
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Temperature sensors Ceramics Resonant frequency Temperature measurement Slot antennas Dielectric constant temperature sensors. Cavity resonators high-temperature techniques microwave sensors slot antennas temperature sensors
Content Type	Text
Resource Type	Article
Subject	Instrumentation Electrical and Electronic Engineering

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