同时测量双向磁场和温度,使用基于低声画廊模式的双通道传感器
Optics express
|June 11, 2024
概括
一个新的双通道低语画廊模式 (WGM) 传感器同时测量磁场和温度. 该传感器使用磁流体和PDMS涂层的微空洞进行敏感的双向磁场和温度检测.
科学领域:
- 光子学和光学传感技术.
- 功能性微观结构的材料科学.
- 在传感器开发中应用物理学.
背景情况:
- 低语画廊模式 (WGM) 共振器为物理测量提供高灵敏度.
- 同时测量磁场和温度具有独特的挑战.
- 开发用于多参数分析的集成传感器对于先进的应用至关重要.
研究的目的:
- 提出并展示一种新的双通道WGM传感器.
- 为了实现双向磁场和温度的同时测量.
- 探索集成微腔的潜力,用于先进的传感.
主要方法:
- 制造一个双通道的二氧化毛细血管,集成一个入磁性流体 (MF) 的毛细血管 (通道1) 和一个涂有聚二甲基 (PDMS) 的微瓶 (通道2).
- 利用WGM微腔的共振波长的变化,由于磁带诱导和热诱导的折射率变化.
- 对磁场和温度传感器的传感器性能进行表征.
主要成果:
- 证明了双向磁场传感,灵敏度为46 pm/mT和-3 pm/mT.
- 实现了温度测量,最高灵敏度为79.7 pm/°C.
- 传感器表现出双向磁性调能力以及温度响应.
结论:
- 开发的双通道WGM传感器可以同时测量双向磁场和温度.
- 集成的微腔设计为矢量磁场和温度双参数传感提供了一个有前途的平台.
- 这项技术在需要精确的多参数环境监测的领域有潜在的应用.
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