A Flexible Wearable Pressure Sensor with Bioinspired Microcrack and Interlocking for Full‐Range Human–Machine Interfacing,Small

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A Flexible Wearable Pressure Sensor with Bioinspired Microcrack and Interlocking for Full‐Range Human–Machine Interfacing
Small ( IF 13.0 ) Pub Date : 2018-09-24 , DOI: 10.1002/smll.201803018
Ying Guo ₁ , Zhiyuan Guo ₁ , Mengjuan Zhong ₁ , Pengbo Wan _{1,

2} , Weixia Zhang ₂ , Liqun Zhang ₁

Affiliation

Flexible wearable pressure sensors have drawn tremendous interest for various applications in wearable healthcare monitoring, disease diagnostics, and human–machine interaction. However, the limited sensing range (<10%), low sensing sensitivity at small strains, limited mechanical stability at high strains, and complicated fabrication process restrict the extensive applications of these sensors for ultrasensitive full‐range healthcare monitoring. Herein, a flexible wearable pressure sensor is presented with a hierarchically microstructured framework combining microcrack and interlocking, bioinspired by the crack‐shaped mechanosensory systems of spiders and the wing‐locking sensing systems of beetles. The sensor exhibits wide full‐range healthcare monitoring under strain deformations of 0.2–80%, fast response/recovery time (22 ms/20 ms), high sensitivity, the ultrasensitive loading sensing of a feather (25 mg), the potential to predict the health of patients with early‐stage Parkinson's disease with the imitated static tremor, and excellent reproducibility over 10 000 cycles. Meanwhile, the sensor can be assembled as smart artificial electronic skins (E‐skins) for simultaneously mapping the pressure distribution and shape of touching sensing. Furthermore, it can be attached onto the legs of a smart robot and coupled to a wireless transmitter for wirelessly monitoring human‐motion interactivities.

中文翻译：

具有生物启发性微裂纹和联锁功能的柔性可穿戴压力传感器，适用于全范围人机界面

柔性可穿戴压力传感器在可穿戴医疗保健监测，疾病诊断和人机交互方面的各种应用引起了极大的兴趣。但是，有限的感测范围（<10％），在小应变下的低感测灵敏度，在高应变下的有限的机械稳定性以及复杂的制造工艺，限制了这些传感器在超灵敏全范围医疗监护中的广泛应用。在此，提出了一种柔性可穿戴压力传感器，其具有由微裂纹和互锁构成的分层微结构框架，其结构受到蜘蛛的裂纹状机械感测系统和甲虫的机翼锁定传感系统的启发。该传感器在0.2–80％的应变变形，快速的响应/恢复时间（22 ms / 20 ms），宽范围的全方位医疗保健监控下，高灵敏度，羽毛超灵敏的负载感测（25毫克），具有模拟的静态震颤可预测早期帕金森氏病患者的健康的潜力，并且在10 000次循环中具有出色的重现性。同时，该传感器可以组装为智能人造电子皮肤（E-skins），以同时绘制触摸感应的压力分布和形状。此外，它可以连接到智能机器人的腿上，并与无线发射器耦合，以无线方式监视人与人之间的互动。该传感器可以组装为智能人造电子皮肤（E-skin），以同时绘制触摸感应的压力分布和形状。此外，它可以连接到智能机器人的腿上，并与无线发射器耦合，以无线方式监视人与人之间的互动。该传感器可以组装为智能人造电子皮肤（E-skin），以同时绘制触摸感应的压力分布和形状。此外，它可以连接到智能机器人的腿上，并与无线发射器耦合，以无线方式监视人与人之间的互动。

更新日期：2018-09-24

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