涂覆介孔型Pt/WO_(3)膜的光纤布喇格光栅氢气传感器  

Fiber Bragg grating hydrogen sensor coated with mesoporous Pt/WO_(3) film

作　　者：洪婉玲 赵春柳 徐睿 康娟 徐贲 沈常宇 王东宁 HONG Wanling;ZHAO Chunliu;XU Rui;KANG Juan;XU Ben;SHEN Changyu;WANG Dongning(College of Optical and Electronic Technology,China Jiliang University,Hangzhou 310018,China)

机构地区：[1]中国计量大学光学与电子科技学院,杭州310018

出　　处：《光通信技术》2021年第11期6-10,共5页Optical Communication Technology

基　　金：国家自然科学基金项目(61775202)资助;国家重点研发计划项目(2018YFF021504)资助。

摘　　要：光纤布喇格光栅(FBG)因其响应速度快和准分布式测量等优势广泛应用于氢气测量领域。为进一步扩大氢气浓度测量范围,提出一种基于介孔型掺铂三氧化钨(Pt/WO_(3))粉末的FBG氢气传感器,并级联一个FBG传感头用以温度补偿。实验结果表明:将氢气浓度从0递增到32%,FBG的中心波长最大飘移量为320 pm,响应时间约为10 s,并且在0~14%氢气浓度范围内有较好的线性关系,灵敏度为11.69 pm/%H_(2),可以实现准分布的氢气浓度传感。Fiber Bragg grating(FBG)is widely used in hydrogen measurement because of its fast response speed and quasi distributed measurement.In order to further expand the measurement range of hydrogen concentration,an FBG hydrogen sensor based on mesoporous platinum doped tungsten trioxide(Pt/WO_(3))powder is proposed,and an FBG sensor head is cascaded for temperature compensation.The experimental results show that when the concentration of hydrogen is increased from 0 to 32%,the maximum drift of the central wavelength of FBG is about 320 pm,the response time is about 10 s,and there is a good linear relationship in the range of 0-14%hydrogen concentration,the sensitivity is 11.69 pm/%H_(2),which can realize quasi distributed hydrogen concentration sensing.

关 键 词：氢气传感器 布喇格光纤光栅 温度补偿 大范围氢气浓度 Pt/WO_(3)粉末 

分 类 号：TN256[电子电信—物理电子学]