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基于AlN表面声波共振器的曲面的无线温度测量

Huali Liu^1,2, Zhixin Zhou^1,2, Liang Lou^1,2

¹School of Microelectronics, Shanghai University, Shanghai 201800, China.

|May 25, 2024

概括

这项研究介绍了曲面表面的柔性表面声波 (SAW) 温度传感器. 这种新的方法使用灵活的印刷电路板 (FPCB) 和频率分割多重接入 (FDMA) 进行准确的多点无线温度监测.

科学领域:

材料科学材料科学材料科学
电气工程电气工程
传感器技术传感器技术

背景情况:

传统的温度传感器在曲或不规则的表面上遇到困难.
表面声波 (SAW) 设备具有潜力,但需要可适应的基板.
灵活的印刷电路板 (FPCB) 提供了传感器集成的机械灵活性.

研究的目的:

开发一种使用 SAW 传感器在曲面上测量温度的新方法.
为了提高传感器的合规性和适应不规则物体几何形状的适应性.
为了实现多点,无线温度传感与频率复杂化.

主要方法:

将SAW共振器集成到柔性印刷电路板 (FPCB) 上.
使用频率分割多重访问 (FDMA) 设计具有三个不同的操作频率的传感器阵列.
通过天线和收发器电路实现无线通信功能.

主要成果:

传感器阵列的频率温度系数为-30.248 ppm/°C,-30.195 ppm/°C和-30.115 ppm/°C.
证明了在曲面上成功进行多点温度测量.
验证了FDMA在区分阵列中的单个传感器方面的有效性.

结论:

FPCB使SAW温度传感器能够有效地适应曲面.
开发的传感器阵列为具有挑战性的几何形状的无线多点温度监测提供了强大的解决方案.
这一创新显著提高了SAW温度传感技术的适应性和适用性.

关键词:

在 SAW 共振器中,灵活的印刷电路板灵活的印刷电路板温度传感器阵列是一系列的温度传感器.

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