Hui Xindan, Li Zhongjie, Tang Lirong, Sun Jianfeng, Hou Xingzhe, Chen Jie, Peng Yan, Wu Zhiyi, Guo Hengyu
School of Physics, Chongqing University, Chongqing, 400044, People's Republic of China.
School of Mechatronic Engineering and Automation, Shanghai University, Shanghai, 200444, People's Republic of China.
Nanomicro Lett. 2022 Dec 31;15(1):27. doi: 10.1007/s40820-022-00999-y.
Label-sensor is an essential component of the label printer which is becoming a most significant tool for the development of Internet of Things (IoT). However, some drawbacks of the traditional infrared label-sensor make the printer fail to realize the high-speed recognition of labels as well as stable printing. Herein, we propose a self-powered and highly sensitive tribo-label-sensor (TLS) for accurate label identification, positioning and counting by embedding triboelectric nanogenerator into the indispensable roller structure of a label printer. The sensing mechanism, device parameters and deep comparison with infrared sensor are systematically studied both in theory and experiment. As the results, TLS delivers 6 times higher signal magnitude than traditional one. Moreover, TLS is immune to label jitter and temperature variation during fast printing and can also be used for transparent label directly and shows long-term robustness. This work may provide an alternative toolkit with outstanding advantages to improve current label printer and further promote the development of IoT.
标签传感器是标签打印机的重要组成部分，而标签打印机正成为物联网（IoT）发展的一项极为重要的工具。然而，传统红外标签传感器的一些缺点使得打印机无法实现标签的高速识别以及稳定打印。在此，我们通过将摩擦纳米发电机嵌入标签打印机不可或缺的辊子结构中，提出了一种用于精确标签识别、定位和计数的自供电且高灵敏度的摩擦标签传感器（TLS）。从理论和实验两方面系统地研究了其传感机制、器件参数以及与红外传感器的深入比较。结果表明，TLS的信号幅度比传统传感器高6倍。此外，TLS在快速打印过程中不受标签抖动和温度变化的影响，还可直接用于透明标签，并且具有长期稳定性。这项工作可能会提供一个具有突出优势的替代工具包，以改进当前的标签打印机，并进一步推动物联网的发展。
