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Article

An Insertable Passive LC Pressure Sensor Based on an Alumina Ceramic for In Situ Pressure Sensing in High-Temperature Environments

by
Jijun Xiong
1,2,
Chen Li
1,2,*,
Pinggang Jia
2,
Xiaoyong Chen
2,
Wendong Zhang
1,
Jun Liu
1,
Chenyang Xue
2 and
Qiulin Tan
1,2,*
1
Key Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Tai Yuan 030051, China
2
Science and Technology on Electronic Test & Measurement Laboratory, North University of China, Tai Yuan 030051
*
Authors to whom correspondence should be addressed.
Sensors 2015, 15(9), 21844-21856; https://doi.org/10.3390/s150921844
Submission received: 8 June 2015 / Revised: 17 August 2015 / Accepted: 24 August 2015 / Published: 31 August 2015
(This article belongs to the Section Physical Sensors)
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Abstract

Pressure measurements in high-temperature applications, including compressors, turbines, and others, have become increasingly critical. This paper proposes an implantable passive LC pressure sensor based on an alumina ceramic material for in situ pressure sensing in high-temperature environments. The inductance and capacitance elements of the sensor were designed independently and separated by a thermally insulating material, which is conducive to reducing the influence of the temperature on the inductance element and improving the quality factor of the sensor. In addition, the sensor was fabricated using thick film integrated technology from high-temperature materials that ensure stable operation of the sensor in high-temperature environments. Experimental results showed that the sensor accurately monitored pressures from 0 bar to 2 bar at temperatures up to 800 °C. The sensitivity, linearity, repeatability error, and hysteretic error of the sensor were 0.225 MHz/bar, 95.3%, 5.5%, and 6.2%, respectively.
Keywords: passive LC pressure sensor; Alumina ceramic; Pressure measurement; High-temperature application passive LC pressure sensor; Alumina ceramic; Pressure measurement; High-temperature application

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MDPI and ACS Style

Xiong, J.; Li, C.; Jia, P.; Chen, X.; Zhang, W.; Liu, J.; Xue, C.; Tan, Q. An Insertable Passive LC Pressure Sensor Based on an Alumina Ceramic for In Situ Pressure Sensing in High-Temperature Environments. Sensors 2015, 15, 21844-21856. https://doi.org/10.3390/s150921844

AMA Style

Xiong J, Li C, Jia P, Chen X, Zhang W, Liu J, Xue C, Tan Q. An Insertable Passive LC Pressure Sensor Based on an Alumina Ceramic for In Situ Pressure Sensing in High-Temperature Environments. Sensors. 2015; 15(9):21844-21856. https://doi.org/10.3390/s150921844

Chicago/Turabian Style

Xiong, Jijun, Chen Li, Pinggang Jia, Xiaoyong Chen, Wendong Zhang, Jun Liu, Chenyang Xue, and Qiulin Tan. 2015. "An Insertable Passive LC Pressure Sensor Based on an Alumina Ceramic for In Situ Pressure Sensing in High-Temperature Environments" Sensors 15, no. 9: 21844-21856. https://doi.org/10.3390/s150921844

APA Style

Xiong, J., Li, C., Jia, P., Chen, X., Zhang, W., Liu, J., Xue, C., & Tan, Q. (2015). An Insertable Passive LC Pressure Sensor Based on an Alumina Ceramic for In Situ Pressure Sensing in High-Temperature Environments. Sensors, 15(9), 21844-21856. https://doi.org/10.3390/s150921844

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