光纤传感器用于可穿戴和准确的人类呼吸系统监测
Min Shao1, Yubo Yuan1, Manyin Wang1
1School of Science, Ministry of Education Key Laboratory on Photoelectric Oil-gas Logging and Detecting, Xi'an Shiyou University , Xi'an 710065, China.
Biomedical optics express
|July 18, 2024
概括
这项研究引入了一种新的光纤传感器,用于精确监测人类呼吸系统. 舒适的,织物嵌入式传感器可靠地检测出各种呼吸模式,性能优于当前的可穿戴技术.
科学领域:
- 生物医学工程 生物医学工程
- 可穿戴技术可穿戴技术
- 传感器开发 传感器开发
背景情况:
- 精确的呼吸系统监测对于健康评估和疾病预防至关重要.
- 现有的可穿戴呼吸传感器在制造,准确性和舒适性方面面临挑战.
- 需要新的传感技术来克服这些局限性.
研究的目的:
- 提出并实验验证一台光纤传感器,用于精确监测人类呼吸系统.
- 在各种条件下评估传感器的性能,并与商业设备进行比较.
- 为了证明传感器在实际医疗保健应用中的潜力.
主要方法:
- 传感器头的制造使用七核纤维,通过bitapers插入单模纤维之间.
- 将传感器集成到织板中,使上半身穿戴舒适.
- 使用一个高效的信号解调系统与里叶变换 (FFT) 和短时间里叶变换 (STFT) 进行信号分析.
主要成果:
- 传感器准确地检测和区分了不同个体的呼吸信号,呼吸状态 (正常,缓慢,快速),身体部位 (腹部,胸部,背部),姿势 (站立,坐着,躺着) 和不规则的呼吸.
- 达到了比0.9高的皮尔森相关系数,与商业呼吸道传感器相当.
- 在6个月内表现出极好的长期稳定性,不稳定性为0.003Hz.
结论:
- 开发的光纤传感器提供了高灵敏度,良好的稳定性和穿戴舒适性.
- 它显示出在医疗保健机构中精确可靠的人类呼吸系统监测的巨大潜力.
- 这项技术解决了当前可穿戴呼吸传感器的局限性.
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