Microwave Icing Sensor Based on Interdigital-Complementary Split-Ring Resonator

Jianbing Xie, Junjie Wen, Junwu Chen, Weizheng Yuan

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

Icing has always been a problem for the aviation industry and the UAV sector. Small and accurate icing sensors can ensure the safety of critical parts of the aircraft and small UAVs in flight. This paper presents an Interdigital-complementary split-ring resonator sensor (ICSRR) that can distinguish water and ice with high accuracy and measure the thickness of ice. Compared with the traditional CSRR structure, the added Interdigital structure can measure ice thickness more sensitively. The sensor detects water and ice based on the change in resonant frequency measured in the scattering parameter S21 coefficient. A prototype sensor was built, and measurements were taken to verify the functionality of the sensor. First, the resonant frequencies under no-load were measured. Second, the process of water icing was characterized using the sensor. Finally, the accuracy of the sensor's measurement of icing thickness was verified, and the data were fitted. The experimental results show that it is feasible to use the ICSRR sensor to monitor the icing condition and ice thickness.

Original languageEnglish
Pages (from-to)12829-12837
Number of pages9
JournalIEEE Sensors Journal
Volume22
Issue number13
DOIs
StatePublished - 1 Jul 2022

Keywords

  • complementary split-ring resonator sensor
  • ice thickness detection
  • Icing detection
  • microwave resonator sensors

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