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High-resolution flexible iontronic skins for both negative and positive pressure measurement in room temperature wind tunnel applications

Author

Listed:
  • Jingxiao Wang

    (Xi’an Jiaotong University
    Shenzhen)

  • Xueyong Wei

    (Xi’an Jiaotong University
    Xi’an Jiaotong University)

  • Junli Shi

    (Shenzhen)

  • Ningning Bai

    (Shenzhen)

  • Xiao Wan

    (Xi’an Jiaotong University)

  • Bing Li

    (Xi’an Jiaotong University)

  • Yingchun Chen

    (Commercial Aircraft Corporation of China Ltd.)

  • Zhuangde Jiang

    (Xi’an Jiaotong University)

  • Chuan Fei Guo

    (Shenzhen)

Abstract

Flexible skins that can be laminated on curved surfaces are a desired form for wind pressure measurement. Sensors for such applications need to detect both negative and positive wind pressure with ultrahigh pressure resolution over a wide range up to 600 kPa, whereas existing flexible sensors are unsatisfactory to such demands. Here, we report a flexible skin containing two iontronic pressure sensors for negative pressure and positive pressure sensing, respectively, and show the potential of the skin for pressure measurement in room temperature wind tunnels. We control the contact state of iontronic interface of a sensor to introduce a pre-pressure that enables negative pressure sensing, exhibiting a pressure resolution of −20 Pa (0.025%) within a broad pressure regime (from −100 kPa to −10 Pa). The other sensor for positive pressure sensing exhibits a pressure-resolution of 100 Pa (0.025%) over 600 kPa, in addition to a wide frequency bandwidth up to 400 Hz. The skin with the two types of sensors can be attached on curved surfaces of wing surface for pressure measurement at various free stream velocities and angles of attack. This study provides a promising technology of using flexible skins for pressure measurement in aviation applications.

Suggested Citation

  • Jingxiao Wang & Xueyong Wei & Junli Shi & Ningning Bai & Xiao Wan & Bing Li & Yingchun Chen & Zhuangde Jiang & Chuan Fei Guo, 2024. "High-resolution flexible iontronic skins for both negative and positive pressure measurement in room temperature wind tunnel applications," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-51415-5
    DOI: 10.1038/s41467-024-51415-5
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    References listed on IDEAS

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    1. Rui Chen & Tao Luo & Jincheng Wang & Renpeng Wang & Chen Zhang & Yu Xie & Lifeng Qin & Haimin Yao & Wei Zhou, 2023. "Nonlinearity synergy: An elegant strategy for realizing high-sensitivity and wide-linear-range pressure sensing," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
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