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Abstract：
There have been many studies on surface acoustic wave (SAW) sensors for detecting sulfur-containing toxic or harmful gases. This paper aims to give an overview of the current state of polymer films used in SAW sensors for detecting deleterious gases. By covering most of the important polymer materials, the structures and types of polymers are summarized, and a variety of devices with different frequencies, such as delay lines and array sensors for detecting mustard gas, hydrogen sulfide, and sulfur dioxide, are introduced. The preparation method of polymer films, the sensitivity of the SAW gas sensor, the limit of detection, the influence of temperature and humidity, and the anti-interference ability are discussed in detail. The advantages and disadvantages of the films are analyzed, and the potential application of polymer films in the future is also forecasted.
摘要：
背景技术关于用于检测含硫有毒或有害气体的表面声波(SAW)传感器已经有许多研究。本文旨在概述SAW传感器中用于检测有害气体的聚合物薄膜的现状。通过覆盖大多数重要的聚合物材料，总结了聚合物的结构和类型，和各种不同频率的设备，例如用于检测芥子气的延迟线和阵列传感器，硫化氢,还有二氧化硫,被介绍。聚合物薄膜的制备方法，SAW气体传感器的灵敏度，检测限，温度和湿度的影响，并详细讨论了抗干扰能力。分析了薄膜的优缺点,并对聚合物薄膜未来的应用前景进行了展望。
