This article presents the development of a knitted flexible sensor, which is embedded into a seamless garment, for monitoring health condition. The sensor is designed as an elastic weft-knitted plain structure, where the conductive silver-plating filament yarn is used for breathing signal collection and the spandex core-spun yarn is used to ensure good attachment of the garment to human body. The breathing amplitude and breathing frequency are obtained from the variations in sensor resistance. The sensor can measure various kinds of breathing conditions, such as normal breathing, slow breathing, fast breathing, and shallow breathing. The results are in reasonable agreement with the actual condition. Such kind of flexible sensors have the advantages of wearable and comfort.

中文翻译：

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一种用于监测呼吸状况的针织可穿戴柔性传感器

本文介绍了一种针织柔性传感器的开发，该传感器嵌入无缝服装中，用于监测健康状况。传感器设计为弹性纬编平纹结构，其中导电镀银长丝用于呼吸信号采集，氨纶包芯纱用于确保服装与人体的良好贴合。从传感器电阻的变化中获得呼吸幅度和呼吸频率。该传感器可以测量各种呼吸状况，如正常呼吸、慢呼吸、快呼吸和浅呼吸。结果与实际情况合理吻合。这种柔性传感器具有可穿戴和舒适的优点。