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A fiber SPR respiration monitoring device based on SF-LIBR composite film
Date
2024
Abstract
Parameters such as respiratory rate and respiratory flow play a crucial role in evaluating human health. To ensure respiratory monitoring equipment can be used in various environments, it must be portable, wearable, and biocompatible. This study introduces a wearable surface plasmon resonance (SPR) humidity sensor that utilizes an SF-LiBr composite film to monitor respiration by detecting humidity changes. The refractive index of the SF-LiBr composite film varies with humidity levels, impacting the phase matching conditions of the SPR and enabling humidity detection. Experimental results demonstrate that the SF-22.1 wt % LiBr sensor has a wide sensing range of 35−99% relative humidity (RH) and can monitor different breathing states in real-time. This innovative sensor concept offers valuable insights for the advancement of wearable health monitoring devices.
Supervisor
Description
Publisher
University of Limerick
Citation
20th Sensors and Their Applications Conference, 2024, Paper No: 10
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Paper_10.pdf
Adobe PDF, 549.56 KB
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Funding Information
This work was supported by The Basic Research Support Program for Excellent Young Teachers of Heilongjiang Province (grant numbers YQJH2023281); Taishan Scholars Program; China Postdoctoral Science Foundation (grant numbers 2022M720940); Qingdao Natural Science Foundation (grant numbers 23-2-1-214-zyyd-jch); Fundamental Research Funds of Harbin Engineering University.