无机材料学报2024，Vol.39Issue(4)：432-440,中插13-中插14,11.DOI:10.15541/jim20230440
电致变色型智能可视化湿度系统
Electrochromic Intelligent Visual Humidity Indication System
摘要
Abstract
In recent years,humidity sensors have attracted widespread attention from researchers in fields such as food safety and soil monitoring.Traditional humidity sensors exhibit the advantages of good stability and high sensitivity.However,most humidity sensing systems convert humidity signals into recognizable waveforms through wired connections and large external devices,making it impossible to achieve real-time visual monitoring of changes in humidity information.Currently,direct conversion of humidity information into visible color signals by eyes provides an ideal solution to the aforementioned problems but still lacks intelligent monitor capacity.This study integrated humidity sensors and electrochromic devices(ECDs)to prepare an intelligent visual humidity monitoring system.By converting humidity signals into voltage signals to drive ECDs,stable and reversible color change in the system could be achieved.The ECDs were prepared using tungsten trioxide(WO3)as the negative electrode and zinc foil(Zn)as the positive electrode.Based on the output voltage of the humidity sensor,it achieves transitions between different working states,thereby generating color signals that can be observed by the naked eyes.Electrochemical performance and electrochromic performance of ECDs were tested and characterized by using a UV-visible spectrophotometer and an electrochemical workstation.Subsequently,the performance of the conditioning circuit was analyzed using an oscilloscope and a humidity generation platform.The results show that the intelligent electrochromic humidity indicator has good stability and rapid response performance,where the coloring time and fading time are only 7.5 s and 4.5 s,respectively.After 300 cycles,the optical modulation(ΔT)is basically maintained the same as the initial value,and the retention rate can reach more than 95%.Therefore,this visual humidity indication system which possesses novel design and simple structure has promising broad application in fields such as artificial intelligence and intelligent agriculture.关键词
电致变色器件/湿度传感器/可视化监测/人工智能Key words
electrochromic device/humidity sensor/visual monitoring/artificial intelligence分类
化学化工引用本文复制引用
甄明硕,刘晓然,范向前,张文平,严东东,刘磊,李晨..电致变色型智能可视化湿度系统[J].无机材料学报,2024,39(4):432-440,中插13-中插14,11.基金项目
国家自然科学基金(62205311,522755552) （62205311,522755552）
中国航空发动机集团产学研合作项目(HFZL2020CXY019) （HFZL2020CXY019）
中央引导地方科技发展基金(YDZJSX2022C007) （YDZJSX2022C007）
天津大学精密测量技术及仪器国家重点实验室项目(pilab2206)National Natural Science Foundation of China(62205311,522755552) （pilab2206）
China Aviation Development Group Industry-University-Research Cooperation Project(HFZL2020CXY019) （HFZL2020CXY019）
Central Government Guided Local Science and Technology Development Fund Project(YDZJSX2022C007) （YDZJSX2022C007）
State Key Laboratory of Precision Measuring Technology and Instruments Tianjin University(pilab2206) （pilab2206）
