摘要
在电力系统中,温度变化等会使设备的部分器件发生损坏,最终导致接触电阻增大,产生很大的危险。实现无源无线温度监测是保证电气设备安全运行的重要手段。近零媒质(Near-zero-index,NZI)具有可形变、局部可调、场增强等特性,在传感器等领域具有重要应用价值。通过将一个装满蒸馏水的石英管放置在基片集成波导中构造近零媒质,一种基于近零媒质的无源无线温度传感器被提出,蒸馏水的介电特性随温度的变化会发生变化,因此通过观测传感器的传输特性可以监测温度变化,从而对设备的异常信息进行及时的采集与处理,保证设备的正常运行。
In the power system,temperature changes will damage part of the equipment,and eventually lead to the increase of contact resistance,resulting in a great danger.Passive wireless temperature sensing is an important way to ensure the safe operation of the power system.Near-zero-index(NZI)is characterized by deformability,local tunability,field enhancement,etc.,with great potential applications in sensing and other fields.By placing a quartz tube filled with distilled water in the substrate integrated waveguide to construct near-zero medium,a passive wireless temperature sensor based on near-zero medium is proposed.Since the dielectric properties of distilled water changes with the temperature,the change of the temperature can be effectively monitored by observing its transmission characteristics.In this way,abnormal information of the equipment can be timely collected and processed to ensure the normal operation of the equipment.
作者
陈文彬
庞建民
郑利斌
李新军
毛雨薇
周永金
CHEN Wen-bin;PANG Jian-min;ZHENG Li-bin;LI Xin-jun;MAO Yu-wei;ZHOU Yong-jin(Beijing SmartChip Microelectronics Technology Company Limited,Beijing 102200,China;Key laboratory of Specialty Fiber Optics and Optical Access Networks,School of Communication and Information Engineering,Shanghai University,Shanghai 200444,China)
出处
《功能材料与器件学报》
CAS
2020年第5期356-360,共5页
Journal of Functional Materials and Devices
基金
国家自然科学基金资助项目(No.61971469)
上海市自然科学基金资助项目(No.18ZR1413500)
关键词
近零媒质
基片集成波导
无源无线
温度传感器
Near-zero media
Substrate integrated waveguide
Passive wireless
Temperature sensor
作者简介
陈文彬(1972-),男,工程师,主要从事电力通信技术研发工作;庞建民(1974-),男,工程师,主要从事电力通信技术研发工作;郑利斌(1984-),男,硕士,工程师,主要从事配电智能终端研发工作;李新军(1983-),男,硕士,工程师,主要从事配电智能终端工作;毛雨薇(1997-),女,硕士研究生,主要从事超材料传感研究;通信作者:周永金(1982-),男,博士,副教授,主要研究方向为超材料、微波毫米波技术和无线能量传输等。(E-mail:yjzhou@shu.edu.cn).
