CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, P. R. China.
School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.
Adv Mater. 2020 Aug;32(32):e2001466. doi: 10.1002/adma.202001466. Epub 2020 Jun 30.
As the dominant component for precise motion measurement, angle sensors play a vital role in robotics, machine control, and personalized rehabilitation. Various forms of angle sensors have been developed and optimized over the past decades, but none of them would function without an electric power. Here, a highly sensitive triboelectric self-powered angle sensor (SPAS) exhibiting the highest resolution (2.03 nano-radian) after a comprehensive optimization is reported. In addition, the SPAS holds merits of light weight and thin thickness, which enables its extensive integrated applications with minimized energy consumption: a palletizing robotic arm equipped with the SPAS can precisely reproduce traditional Chinese calligraphy via angular data it collects. In addition, the SPAS can be assembled in a medicare brace to record the flexion/extension of joints, which may benefit personalized orthopedic recuperation. The SPAS paves a new approach for applications in the emerging fields of robotics, sensing, personalized medicare, and artificial intelligence.
作为精确运动测量的主要组成部分，角度传感器在机器人技术、机器控制和个性化康复中起着至关重要的作用。在过去的几十年中，已经开发和优化了各种形式的角度传感器，但它们都离不开电力。在这里，报道了一种经过全面优化后具有最高分辨率（2.03 纳弧度）的高灵敏度摩擦电自供电角度传感器（SPAS）。此外，SPAS 具有重量轻和厚度薄的优点，这使其能够广泛集成应用，同时最大限度地减少能源消耗：配备 SPAS 的码垛机械臂可以通过它收集的角度数据精确复制中国传统书法。此外，SPAS 可以组装在医疗保健支架中以记录关节的弯曲/伸展，这可能有益于个性化的骨科康复。SPAS 为机器人技术、传感、个性化医疗保健和人工智能等新兴领域的应用开辟了新途径。
