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Hierarchical Elastomer Tuned Self-powered Pressure Sensor for Wearable Multifunctional Cardiovascular Electronics
Nano Energy ( IF 17.6 ) Pub Date : 2020-01-08 , DOI: 10.1016/j.nanoen.2020.104460
Shuwen Chen , Nan Wu , Shizhe Lin , Jiangjiang Duan , Zisheng Xu , Yuan Pan , Hongbo Zhang , Zheheng Xu , Liang Huang , Bin Hu , Jun Zhou

Wearable pressure sensors, as essential components of flexible wearable electronics, may play important roles in early diagnosis and mortality prevention for cardiovascular healthcare. However, traditional self-powered pressure sensors can hardly obtain both high sensitivity and wide pressure range, which makes perceiving both cardiac and vascular signals in a wearable self-powered way challenging as these physiological signals not only have imperceptible changes but also span a broad pressure range. Here, we develop a flexible hierarchical elastomer tuned self-powered pressure sensor, which achieves both high-sensitivity and wide pressure range, showing a high sensitivity of 7.989 V·kPa−1 and wide pressure range of 0.1 ∼ 60 kPa simultaneously. Fast response (40 ms) and high signal noise ratio (38 db) with good stability are also achieved. We demonstrate that the self-powered pressure sensor not only can sensitively monitor pulse, artery and heart condition but also can be utilized for blood pressure monitoring in a wide pressure range, successfully satisfied the diverse needs of wearable cardiovascular healthcare. As most of the pressure related to human interface is less than 50 kPa, we envision the sensor holds great potential in wearable electronics, mobile healthcare and human-machine interaction.



中文翻译:

用于穿戴式多功能心血管电子系统的分层弹性体调谐自供电压力传感器

作为柔性可穿戴电子设备的基本组件,可穿戴压力传感器在心血管医疗的早期诊断和死亡率预防中可能发挥重要作用。但是,传统的自供电压力传感器几乎无法同时获得高灵敏度和宽压力范围,这使得以可穿戴自供电方式感知心脏和血管信号具有挑战性,因为这些生理信号不仅具有难以察觉的变化,而且跨越很大的压力范围。在这里,我们开发了一种灵活的分层弹性体调谐自供电压力传感器,该传感器既具有高灵敏度又具有宽压力范围,显示出7.989 V·kPa -1的高灵敏度同时具有0.1〜60 kPa的宽压力范围。还实现了快速响应(40 ms)和高信号噪声比(38 db),并具有良好的稳定性。我们证明,自供电压力传感器不仅可以灵敏地监测脉搏,动脉和心脏状况,而且可以在很宽的压力范围内用于血压监测,成功满足了可穿戴式心血管保健的多种需求。由于与人机界面相关的大多数压力都低于50 kPa,因此我们设想该传感器在可穿戴电子设备,移动医疗保健和人机交互方面具有巨大潜力。

更新日期:2020-01-08
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