As the core of a humidity sensor, the performance of the humidity-sensitive material plays an important role in the humidity sensor application. Through the doping of KCl, a feasible way has been widely used to improve the humidity sensitivity of sensing materials. However, in the reported synthesis, due to the limitation of nanomaterial morphology, it is difficult to say that KCl is uniformly doped in the interior of the nanomaterial. Therefore, based on the Dy₂O₃ nanosphere material with a nanotubular unit and with the help of the capillary effect of nanotubular structures, the KCl-doped Dy₂O₃ nanomaterial with a uniform distribution is designed and synthesized. Through the humidity sensitivity test, it can be found that the humidity sensitivity of the as-prepared humidity sensor has been greatly improved compared with the Dy₂O₃ nanomaterial. It has the ability of low-humidity detection. Moreover, a large number of practical applications of the material have been implemented; some related experiments show that the KCl/Dy₂O₃ nanosphere has good response characteristics in respiratory monitoring, vital sign monitoring, and speech recognition monitoring in different states of the human body. Therefore, it is believed that the composite will have good application potential in intelligent applications such as low-humidity detection and respiration monitoring in the future.

中文翻译：

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用于人体呼吸监测的具有湿度响应的 KCl 修饰的 Dy2O3 纳米球

作为湿度传感器的核心，湿度敏感材料的性能在湿度传感器的应用中起着重要的作用。通过掺杂氯化钾，一种可行的方法已被广泛用于提高传感材料的湿度敏感性。然而，在报道的合成中，由于纳米材料形貌的限制，很难说KCl是均匀掺杂在纳米材料内部的。因此，基于具有纳米管单元的 Dy ₂ O ₃纳米球材料，借助纳米管结构的毛细管效应，KCl 掺杂的 Dy ₂ O ₃设计合成了分布均匀的纳米材料。通过湿敏试验可以发现，所制备的湿度传感器与Dy ₂ O ₃纳米材料相比，其湿敏性有了很大的提高。具有低湿检测能力。此外，该材料的大量实际应用已经实现；相关实验表明，KCl/Dy ₂ O ₃纳米球在人体不同状态下的呼吸监测、生命体征监测、语音识别监测等方面具有良好的响应特性。因此，相信该复合材料未来将在低湿度检测、呼吸监测等智能应用中具有良好的应用潜力。