一个基于PDMS涂层的气球形光纤呼吸监测传感器
Qingfeng Shi1, Yunkun Cui1, Yu Zhang2
1Sports Department, Taishan University, Taian 271000, China.
Sensors (Basel, Switzerland)
|August 28, 2025
概括
一个新的气球形光纤传感器通过检测温度变化监测呼吸. 这种创新装置提供了一种灵敏而准确的方法来跟踪各种呼吸状态和频率.
科学领域:
- 光电子产品
- 生物医学工程
- 传感器技术
背景情况:
- 精确的呼吸监测对于诊断和管理各种疾病至关重要.
- 现有的呼吸监测方法可能在灵敏度,可移植性或成本方面存在局限性.
- 光纤传感器具有潜在的优势,因为它们的尺寸小,对电磁干扰的免疫力和高灵敏度.
研究的目的:
- 提出并展示基于气球形光纤的新型呼吸监测传感器.
- 调查传感器在检测与呼吸相关的温度变化方面的性能.
- 评估传感器在不同呼吸状态和频率之间区分的能力.
主要方法:
- 使用涂有多甲基 (PDMS) 的单模纤维 (SMF) 制造气球形光纤马赫-泽恩德干扰仪.
- 通过调整SMF的曲半径以干扰核心模式来激发高级模式.
- 由于PDMS的热光学和热膨胀特性,传感器的温度灵敏度的表征.
- 将传感器集成到呼吸口罩中,以实时监测呼吸模式.
主要成果:
- 拟议的传感器在30°C至60°C范围内显示出显著的温度灵敏度为-166.29 pm/°C.
- 传感器成功地区分了正常,快速和缓慢的呼吸状态.
- 传感器有效监测口腔和鼻腔呼吸之间的过渡以及呼吸频率.
结论:
- 一种新型敏感的气球形光纤传感器已成功开发.
- 传感器利用温度灵敏度准确检测呼吸状态和模式.
- 这项技术有望用于非侵入性,实时的呼吸监测应用.
相关概念视频
01:26Oxygen Delivering System I: Nasal Cannula and Face Mask
582
The human body requires oxygen to function, and when the natural process of respiration is hindered, external devices, including the following, are needed to help deliver this vital gas.
Nasal Cannula
A nasal cannula is a lightweight tube split at one end into two prongs and placed in the nostrils. It is typically used to deliver low to medium levels of oxygen.
Suggested flow rate: The suggested flow rate for a nasal cannula typically ranges between 1 and 6 L/min.
Oxygen percentage setting:...
Nasal Cannula
A nasal cannula is a lightweight tube split at one end into two prongs and placed in the nostrils. It is typically used to deliver low to medium levels of oxygen.
Suggested flow rate: The suggested flow rate for a nasal cannula typically ranges between 1 and 6 L/min.
Oxygen percentage setting:...
582
01:24Pulse Oximetry
407
Pulse oximetry, or SpO2, is a non-invasive method for continuously monitoring arterial oxygen saturation (SaO2). This procedure involves attaching a probe or sensor to the patient's fingertip, forehead, earlobe, or nose bridge. The sensor works by detecting changes in oxygen saturation levels through light signals generated by the oximeter and reflected by the pulsing blood under the probe.
Purpose
Average SpO2 values are greater than 95%. If the readings fall below 90%, it indicates that...
Purpose
Average SpO2 values are greater than 95%. If the readings fall below 90%, it indicates that...
407