通过无芯片二氧化瓦纳地表标签的被动温度传感器.
Fuwei Wang1, Rong Sun2, Xuechen Zhang2
1School of Information Technology, Northwest University, Xi'an, 710127, Shaanxi, China. wfw@nwu.edu.cn.
Scientific reports
|December 31, 2024
概括
这项研究介绍了一种使用二氧化瓦纳的被动,无电池的温度传感标签. 新型的超表面设计使得在没有活性组件的情况下,在34-42°C范围内准确和快速监测温度.
科学领域:
- 材料科学 材料科学 材料科学
- 电气工程 电气工程
- 物联网 (IoT) 的物联网 (IoT) 的物联网.
背景情况:
- 被动温度传感系统为监控提供了高效,可靠和方便的解决方案.
- 主动设备经常面临测量距离,尺寸和成本的挑战.
研究的目的:
- 引入一个被动的,无电池,无芯片,超表面温度传感标签.
- 为了利用二氧化瓦纳提高温度传感能力.
主要方法:
- 使用 wolfram 合二氧化粉制造传感标签.
- 涂层,烧结,超表面设计和离子束蚀刻技术的应用.
- 反射大小和正方形电阻变化与温度的表征.
主要成果:
- 在34-42°C温度范围内显示出显著的反射幅度变化.
- 观察到,随着温度从34°C增加到42°C,方形电阻从1003 Ω降低到90 Ω.
- 报告了标签反射幅度的显著增加,在3.5-5.27 GHz频段的温度下降.
结论:
- 开发的被动温度传感标签实现了快速而准确的温度传感.
- 使用二氧化瓦纳的超表面设计有效地解决了主动温度传感器的局限性.
- 该系统有望在基于物联网的温度监测中得到广泛应用.
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