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A Wireless Pressure Microsensor Fabricated in HTCC Technology for Dynamic Pressure Monitoring in Harsh Environments

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  • Ronghui Gao
  • Yingping Hong
  • Huixin Zhang
  • Wenyi Liu
  • Ting Liang
  • Wendong Zhang
  • Jijun Xiong

Abstract

The partially stabilized zirconia (PSZ) ceramic has wide applications due to its excellent mechanical toughness and chemically inert and electrical properties for fabricating various devices. In this paper, a novel high temperature pressure sensor with the PSZ was designed and fabricated. The sensor was designed based on the small deflection theory, which enables its theoretic pressure-capacitance capability up to 60 bar. HTCC process technology was used to fabricate the sensor, which would realize a completely passive LC resonant circuit integrated on the ceramic substrate. According to the coupling principle, noncontact testing is achieved using the designed readout system, with average sensitivity up to 38 kHz Bar −1 presented. Compared to the fabrication and measurement of traditional sensors, excellent packaging process is demonstrated, and the sensor can be completely tested from 0 to 60 bar.

Suggested Citation

  • Ronghui Gao & Yingping Hong & Huixin Zhang & Wenyi Liu & Ting Liang & Wendong Zhang & Jijun Xiong, 2015. "A Wireless Pressure Microsensor Fabricated in HTCC Technology for Dynamic Pressure Monitoring in Harsh Environments," International Journal of Distributed Sensor Networks, , vol. 11(1), pages 974742-9747, January.
    • Handle: RePEc:sae:intdis:v:11:y:2015:i:1:p:974742
    DOI: 10.1155/2015/974742
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