Stretchable, Breathable, and Washable Fabric Sensor for Human Motion Monitoring
Stretchable, Breathable, and Washable Fabric Sensor for Human Motion Monitoring
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DOI：
10.1002/admt.202300378
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发表时间：
2023-07
影响因子：
6.8
通讯作者：
Lina Sanchez-Botero;Anjali Agrawala;Rebecca Kramer‐Bottiglio
中科院分区：
文献类型：
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作者：
Lina Sanchez-Botero;Anjali Agrawala;Rebecca Kramer‐Bottiglio
用于运动跟踪的可穿戴应变传感器是改善神经或肌肉骨骼疾病患者临床护理的一个有前途的范例，并进一步适用于运动服装、虚拟现实和下一代游戏控制器。类似服装的可穿戴应变传感器可以支持这些用例，因为用于服装的织物通常重量轻且透气，并且以机械和热学熟悉的方式与皮肤接触。本文提出了一种织物电容式应变传感器，并将其集成到日常服装中以测量人体运动。该传感器由薄层透气织物制成，具有高应变（> 90％）、出色的循环稳定性（> 5000次循环）和高水蒸气透过率（约50 g/h m2），后者允许汗液蒸发，这是舒适度的重要参数。传感器的功能在与人体表面类似的条件下（35°C 和 90±2$90\pm 2$ % 相对湿度）以及用织物洗涤剂清洗后进行验证。此外，织物传感器在高达 1 MHz 的激励频率下表现出稳定的电容，有利于其在 Arduino 环境中的低成本实施。最后，作为概念验证，多个织物传感器与商业运动服无缝集成以收集运动数据。本文提出的织物传感器设计优先考虑透气性（透气性和水蒸气透过性），为未来舒适、不引人注目和离散的感官服装铺平了道路。
Wearable strain sensors for movement tracking are a promising paradigm to improve clinical care for patients with neurological or musculoskeletal conditions, with further applicability to athletic wear, virtual reality, and next‐generation game controllers. Clothing‐like wearable strain sensors can support these use cases, as the fabrics used for clothing are generally lightweight and breathable, and interface with the skin in a manner that is mechanically and thermally familiar. Herein, a fabric capacitive strain sensor is presented and integrated into everyday clothing to measure human motions. The sensor is made of thin layers of breathable fabrics and exhibits high strains (>90%), excellent cyclic stability (>5000 cycles), and high water vapor transmission rates (≈50 g/h m2), the latter of which allows for sweat evaporation, an essential parameter of comfort. The sensor's functionality is verified under conditions similar to those experienced on the surface of the human body (35°C and 90±2$90\pm 2$ % relative humidity) and after washing with fabric detergent. In addition, the fabric sensor shows stable capacitance at excitation frequencies up to 1 MHz, facilitating its low‐cost implementation in the Arduino environment. Finally, as a proof of concept, multiple fabric sensors are seamlessly integrated with commercial activewear to collect movement data. With the prioritization of breathability (air permeability and water vapor transmission), the fabric sensor design presented herein paves the way for future comfortable, unobtrusive, and discrete sensory clothing.