基于微波光子晶体的温度传感方法研究  

Research on temperature sensing measurement method based on microwave photonic crystal

作　　者：梅永[1] 王浩志 MEI Yong;WANG Hao-zhi(School of Electronic and Information Engineering,Nanjing University of Information Science and Technology,Nanjing 210044,China)

机构地区：[1]南京信息工程大学电子与信息工程学院,南京210044

出　　处：《信息技术》2024年第11期16-20,27,共6页Information Technology

基　　金：中国气象局软科学项目(2022ZZXM21)。

摘　　要：针对基于电子技术的测温传感器灵敏度低、尺寸大和易受环境影响等缺陷,提出一种基于镜像型一维微波光子晶体模型的温度测量方法。利用传输矩阵法计算了一维缺陷微波光子晶体在不同环境温度条件下的带隙和缺陷峰频谱,建立了缺陷峰波长或缺陷峰偏波长移量与环境温度之间的关系;通过自由空间法测量缺陷峰波长在待测温度条件下的缺陷峰波长或其偏移量,则可以反演环境温度。结果表明,该温度测量方法具有较好的温度传感灵敏度和较大的温度测度范围,为设计微波传感器提供了一种新理论和实践案例。A temperature measurement method based on a one-dimensional photonic crystal model with mirror symmetry is proposed to overcome the shortcomings of low sensitivity,size limitation,and susceptibility to environmental influence of electronic technology temperature sensors.The bandgap and defect peak spectrum of one-dimensional defect microwave photonic crystals under different environmental temperature conditions are calculated using the transfer matrix method,and the relationship between defect peak wavelength or defect peak deviation wavelength shift and environmental temperature is established.By measuring the defect peak wavelength or its offset under the temperature conditions to be measured using the free space method,the environmental temperature can be inverted.The results indicate that the temperature measurement method has good temperature sensing sensitivity and a large temperature measurement range,providing a new theoretical and practical case for designing microwave sensors.

关 键 词：微波光子晶体 缺陷模 传输矩阵法 温度传感 灵敏度 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]