Philipp Schulmeyer, Manfred Weihnacht, Hagen Schmidt
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引用次数: 0
摘要
基础设施上的积冰会带来严重的安全风险和经济损失，因此需要有效的检测和监控解决方案。本研究介绍了一种采用表面声波（SAW）传感器的新方法，这种传感器以体积小、无线操作、能源自给自足和改造能力强而著称。通过在 64° 旋转的 Y 型切割铌酸锂基板上使用声表面波双模延迟线装置，我们展示了一种冰探测和温度测量相结合的解决方案。除了剪切水平极化泄漏声表面波外，我们的研究结果还揭示了同一切面上 X+90° 方向上的电激发雷利型波。温度室中的实验结果证实了可靠区分液态水和冰负载以及同时测量温度的能力。这项研究为解决安全问题和与冰增生相关的经济损失问题带来了希望。
A Dual-Mode Surface Acoustic Wave Delay Line for the Detection of Ice on 64°-Rotated Y-Cut Lithium Niobate
Ice accumulation on infrastructure poses severe safety risks and economic losses, necessitating effective detection and monitoring solutions. This study introduces a novel approach employing surface acoustic wave (SAW) sensors, known for their small size, wireless operation, energy self-sufficiency, and retrofit capability. Utilizing a SAW dual-mode delay line device on a 64°-rotated Y-cut lithium niobate substrate, we demonstrate a solution for combined ice detection and temperature measurement. In addition to the shear-horizontal polarized leaky SAW, our findings reveal an electrically excitable Rayleigh-type wave in the X+90° direction on the same cut. Experimental results in a temperature chamber confirm capability for reliable differentiation between liquid water and ice loading and simultaneous temperature measurements. This research presents a promising advancement in addressing safety concerns and economic losses associated with ice accretion.
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