Towards a fast and stable tachypnea monitor:a C6o-Lys enabled optical fiber sensor for humidity tracking in breath progress

扫码查看

原文链接

万方数据

外文摘要：The pandemic of respiratory diseases enlightened people that monitoring respiration has promising prospects in averting many fatalities by tracking the development of diseases.However,the response speed of current optical fiber sensors is still insufficient to meet the requirements of high-frequency respiratory detection during respiratory failure.Here,a scheme for a fast and stable tachypnea monitor is proposed utilizing a water-soluble C60-Lys ion compound as functional material for the tracking of humidity change in the progression of breath.The polarization of C60-Lys can be tuned by the ambient relative humidity change,and an apparent refractive index alteration can be detected due to the small size effect.In our experiments,C60-Lys is conformally and uniformly deposited on the surface of a tilted fiber Bragg grating[TFBG]to fabricate an ultra-fast-response,high-sensitivity,and long-term stable optical fiber humidity sensor.A relative humidity[RH]detecting sensitivity of 0.080 dB/％RH and the equilibrium response time and recovery time of 1.85 s and 1.58 s are observed,respectively.Also,a linear relation is detected between the resonance intensity of the TFBG and the environment RH.In a practical breath monitoring experiment,the instantaneous response time and recovery time are measured as 40 ms and 41 ms,respectively,during a 1.5 Hz fast breath process.Furthermore,an excellent time stability and high repeatability are exhibited in experiments conducted over a range of 7 days.

外文关键词：

humidity sensorfullerene derivativeoptical fiber sensingtilted fiber Bragg gratingnanomaterials

作者：

王富祥、高峰、王小牛、王莹、金飞、任紫峭、武俊、黄振林、周文俊、沈常宇

展开 >

作者单位：

College of Optical and Electronic Technology,China Jiliang University,Hangzhou 310018,China

College of Materials and Chemistry,China Jiliang University,Hangzhou 310018,China

基金：

国家自然科学基金国家自然科学基金浙江省自然科学基金浙江省自然科学基金浙江省自然科学基金Key R & D Project of Zhejiang Province国家重点研发计划

项目编号：

1227438652002365LQ23F050006LY21F050006LQ21E0200052021C011792021YFF0600203

出版年：

2024

DOI：

10.3788/COL202422.021201

中国光学快报(英文版)

中国光学学会中国科学院上海光学精密机械研究所

中国光学快报(英文版)

CSTPCD

影响因子：1.305

ISSN：1671-7694

年,卷(期)：2024.22(2)

参考文献量29