实施SS-补偿LC-热敏器拓技术,用于被动无线温度传感
Seyit Ahmet Sis1, Yeliz Dikerler Kozar1
1Electrical and Electronics Engineering, Balikesir University, Balikesir 10145, Turkey.
Sensors (Basel, Switzerland)
|October 29, 2025
概括
这项研究引入了一个被动无线温度传感器,使用一系列系列 (SS) 补偿LC-热敏电路. 传感器通过在分割共振频率测量输入阻抗来准确监测温度,提供稳定的无线传感.
科学领域:
- 电气工程 电气工程
- 无线传感器技术 无线传感器技术
- 材料科学 材料科学 材料科学
背景情况:
- 被动无线传感器对于远程监控应用至关重要.
- 现有的LC共振传感器在直接阻抗映射和稳定性方面面临着挑战.
- 负温度系数 (NTC) 热敏电阻提供了温度依赖的电阻.
研究的目的:
- 开发和验证一个被动无线温度传感器.
- 为了利用SS-补偿LC-thermistor拓,实现直接阻抗反射.
- 通过输入阻抗跟踪实现精确的无线温度监测.
主要方法:
- 设计了一个系列-系列 (SS) 补偿双LC-坦克共振系统.
- 集成了一个NTC热敏电阻作为二级侧的温度依赖负载.
- 在强度合模式下运行系统以诱导分叉并分析阻抗反射.
主要成果:
- 证明了在分裂共振频率的反射电阻等于热电阻的电阻.
- 使用VNA在板原型上验证传感器的性能.
- 测量和预期的热电阻之间观察到密切一致,寄生效应的影响很小.
结论:
- 通过SS补偿LC-thermistor传感器,可以通过输入阻抗直接无线监测温度.
- 拟议的拓为被动无线传感提供了一个稳定而准确的方法.
- 读数的平均值提供了对电容漂移的免疫力,增强了测量稳定性.
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