Healthcare monitoring systems can provide important health state information by monitoring the biomechanical parameter or motion of body segments. Triboelectric nanogenerators (TENGs) as self‐powered motion sensors have been developed rapidly to convert external mechanical change into electrical signal. However, research effort on using TENGs for multiaxis acceleration sensing is very limited. Moreover, TENG has not been demonstrated for rotation sensing to date. Herein, for the first time, a 3D symmetric triboelectric nanogenerator‐based gyroscope ball (T‐ball) with dual capability of energy harvesting and self‐powered sensing is proposed for motion monitoring including multiaxis acceleration and rotation. The T‐ball can harvest energy under versatile scenarios and function as self‐powered 3D accelerometer with sensitivity of 6.08, 5.87, and 3.62 V g⁻¹ . Furthermore, the T‐ball can serve as a self‐powered gyroscope for rotation sensing with sensitivity of 3.5 mV s^o−1. It shows good performance in hand motion recognition and human activity state monitoring applications. The proposed T‐ball as a self‐powered gyroscope for advanced motion sensing can pave the way to a self‐powered, more accurate, and more complete motion monitoring system.

中文翻译：

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使用摩擦电机制的自供电陀螺仪球

医疗保健监视系统可以通过监视生物力学参数或人体节段的运动来提供重要的健康状态信息。摩擦电纳米发电机（TENGs）作为自供电运动传感器已得到迅速发展，可以将外部机械变化转换为电信号。但是，将TENG用于多轴加速度感测的研究工作非常有限。此外，迄今为止，TENG尚未用于旋转感应方面的演示。在此，首次提出了具有能量收集和自供电传感双重功能的基于3D对称摩擦电纳米发电机的陀螺仪球（T-ball），用于包括多轴加速和旋转的运动监控。T型球可以在各种情况下收集能量，并可以用作自供电3D加速度计，其灵敏度为6.08、5.87和3。g ^-1。此外，T型球可以作为自供电的陀螺仪用于旋转感应，灵敏度为3.5 mV s ^o-1。它在手部动作识别和人类活动状态监视应用程序中显示出良好的性能。拟议中的T球作为一种用于高级运动感应的自供电陀螺仪，可以为自供电，更准确，更完整的运动监控系统铺平道路。