Passive UHF RFID Tag for Heat Sensing Applications
Passive UHF RFID Tag for Heat Sensing Applications
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DOI：
10.1109/tap.2012.2207045
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发表时间：
2012-09-01
影响因子：
5.7
通讯作者：
Ukkonen, Leena
中科院分区：
文献类型：
--
作者：
Babar, Abdul Ali;Manzari, Sabina;Ukkonen, Leena
讨论了一种利用石蜡作为基材来开发阈值热感射频识别（RFID）标签的可能方法。小型窄带无源 UHF RFID 标签制作在多层基板的顶部。石蜡充当基材的主要热敏层。石蜡层的性质和特性会因热量而发生变化。基材顶部的窄带标签设计得足够灵敏，可以检测基材材料的任何结构和物理变化。基材材料特性的变化将导致标签的工作频率发生变化。这种频移会降低窄带 RFID 传感器标签的性能。石蜡受热后性质的变化在正常条件下是不可逆的，因此，所提出的RFID标签可以称为阈值热传感装置。这种低成本解决方案可用于检测各种供应链中的热暴露和热敏感物品的运输不当处理。
A possible method of utilizing paraffin wax as a substrate material in developing a threshold heat sensing radio frequency identification (RFID) tag is discussed. A small narrow band passive UHF RFID tag is made on top of a multilayer substrate. Paraffin wax acts as the main heat sensitive layer of the substrate. The properties and characteristics of the paraffin layer change due to heat. The narrow band tag on top of the substrate is designed to be sensitive enough to detect any structural and physical changes of the substrate material. The changes in the properties of the substrate material will cause a shift in the operating frequency of the tag. This frequency shift will reduce the performance of the narrow band RFID sensor tag. The change in the properties of paraffin wax after being exposed to heat is irreversible under normal conditions and therefore, the proposed RFID tag can be referred to as a threshold heat sensing device. Such a low-cost solution can be useful in detecting heat exposures in various supply chains and transportation mishandling of heat sensitive items.